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Vivaan Chandra

USATT#: 1170374

Introduction
This page explains how Vivaan Chandra (USATT# 1170374)'s rating went from 676 to 655 at the 888 TTC $15K Butterfly / XIOM Labor Day Challenge held on 3 Sep 2021 - 6 Sep 2021. These ratings are calculated by the ratings processor which goes through 4 passes over the match results data for a tournament. The following values are produced at the end of each of the 4 passes of the ratings processor for Vivaan Chandra for this tournament.

Initial Rating Pass 1 Pass 2 Pass 3 Final Rating (Pass 4)
676 550 676 676 655


You can click here to view a table of all the resultant values from each of the 4 passes (and the initial rating) of the ratings processor for all of the 170 players in this tournament. Sections below for further details on the initial rating and the 4 passes of the ratings processor.

Note: We use mathematical notation to express the exact operations carried out in each pass of the ratings processor below. Whenever you see a variable/symbol such as for example Xi3, we are following the convention that the superscript part of the variable (in this case "3") indicates an index (such as in a series), and it should not be misconstrued to be an exponent (which is how it is used by default).

Initial Rating
The initial rating of a player for a tournament is the rating the player received at the end of the most recent tournament prior to the current tournament. If this is the first tournament the player has ever participated in (based on our records), then the player has no initial rating.

The initial rating for 888 TTC $15K Butterfly / XIOM Labor Day Challenge held on 3 Sep 2021 - 6 Sep 2021 for Vivaan Chandra, and its source tournament are as follows:
Initial Rating From Tournament Start Day End Day
676 2021 US National Table Tennis Championships 4 Jul 2021 9 Jul 2021

Click here to view the details of the initial ratings for all the players in this tournament.

Pass 1 Rating
In Pass 1, we only consider all the players that come into this tournament with an initial rating while ignoring all the unrated players. If a rated player has a match against an unrated player, then that match result is ignored from the pass 1 calculations as well. We apply the point exchange table shown below to all the matches participated in by the rated players:

Point Spread Expected Result Upset Result
0 - 12 8 8
13 - 37 7 10
38 - 62 6 13
63 - 87 5 16
88 - 112 4 20
113 - 137 3 25
138 - 162 2 30
163 - 187 2 35
188 - 212 1 40
213 - 237 1 45
238 and up 0 50

Suppose player A has an initial rating of 2000 and player B has an initial rating of 2064, and they played a match against each other. When computing the impact of this match on their rating, the "Point Spread" (as it is referred to in the table above) between these two players is the absolute value of the difference their initial ratings. When the player with the higher rating wins, presumably the better player won, which is the expected outcome of a match, and therefore the "Expected Result" column applies. If the player with the lower rating wins the match, then presumably this is not expected, and therfore it is deemed as an "Upset Result" and the value from that column in the table above is used. So, in our example of player A vs player B, if player B wins the watch, then the expected outcome happens, and 5 points are added to player B's rating and 5 points are deducted from player A's rating. Looking at Vivaan Chandra's match results and applying the point exchange table, gives us the following result:

Vivaan Chandra's Wins
Winner Loser
Point Spread Outcome Gain Player USATT # Rating Player USATT # Rating
214 EXPECTED 1 Vivaan Chandra 1170374 676 Varin Chandra 1170751 462
39 EXPECTED 6 Vivaan Chandra 1170374 676 Denise Russo 266501 637
62 EXPECTED 6 Vivaan Chandra 1170374 676 Tanvi Desai 1169576 614
184 EXPECTED 2 Vivaan Chandra 1170374 676 Amanda Sun 230107 492
532 UPSET 50 Vivaan Chandra 1170374 676 Changching Chan 1171852 1208
161 UPSET 30 Vivaan Chandra 1170374 676 Joey Yin 1171821 837
68 EXPECTED 5 Vivaan Chandra 1170374 676 Francisca Henriquez 270460 608
161 UPSET 30 Vivaan Chandra 1170374 676 Joey Yin 1171821 837
676 EXPECTED 0 Vivaan Chandra 1170374 676 Aarav Desai 269570 0
0 0 Vivaan Chandra 1170374 0 Caleb Oshinsky 271244 0
214 EXPECTED 1 Vivaan Chandra 1170374 676 Varin Chandra 1170751 462
0 0 Vivaan Chandra 1170374 0 Andrew Ellis 1172453 0
0 0 Vivaan Chandra 1170374 0 Mike Morales 271270 0

Vivaan Chandra's Losses
Winner Loser
Point Spread Outcome Loss Player USATT # Rating Player USATT # Rating
716 EXPECTED -0 Qi Cai 223588 1392 Vivaan Chandra 1170374 676
289 EXPECTED -0 Mihir Herlekar 1170753 965 Vivaan Chandra 1170374 676
289 EXPECTED -0 Mihir Herlekar 1170753 965 Vivaan Chandra 1170374 676
0 -0 Milan Kovac 263652 0 Vivaan Chandra 1170374 0
174 UPSET -35 Brandon Ge 217848 502 Vivaan Chandra 1170374 676
0 -0 Jane Chong 271392 0 Vivaan Chandra 1170374 0
329 EXPECTED -0 Qiuyi Jia 263263 1005 Vivaan Chandra 1170374 676
0 -0 Jane Chong 271392 0 Vivaan Chandra 1170374 0
165 UPSET -35 Samrithi Balaa Saravanan 1170762 511 Vivaan Chandra 1170374 676
289 EXPECTED -0 Mihir Herlekar 1170753 965 Vivaan Chandra 1170374 676
153 EXPECTED -2 Ron Zharzhavsky 221716 829 Vivaan Chandra 1170374 676
165 UPSET -35 Samrithi Balaa Saravanan 1170762 511 Vivaan Chandra 1170374 676
339 UPSET -50 Ryan Hsu 263649 337 Vivaan Chandra 1170374 676
256 UPSET -50 Shrirang Krishnaprasad 269745 420 Vivaan Chandra 1170374 676
265 UPSET -50 Abhinav Shirbhate 265334 411 Vivaan Chandra 1170374 676
0 -0 Rick Gray 270979 0 Vivaan Chandra 1170374 0
0 -0 Roelof Botha 271257 0 Vivaan Chandra 1170374 0
662 EXPECTED -0 Shriraam Velayutham 223760 1338 Vivaan Chandra 1170374 676

You can click here to view a table of outcomes and points gained/lost from all the matches with all the players in this tournament.

The "Outcome" column above, shows whether the match had an expected (player with the higher rating wins the match) or an upset (player with the higher rating loses the match) outcome. Based on this outcome, and using both the player's initial rating, we apply the point exchange table from above and show the ratings points earned and lost by Vivaan Chandra in the "Gain" column. Matches are separated out into two tables for wins and losses where points are gained and lost respectively. We get the following math to calculate the Pass 1 Rating for Vivaan Chandra:

Initial Rating Gains/Losses Pass 1 Rating
676 + 1 + 0 + 0 + 6 + 0 + 6 + 2 + 0 - 35 + 0 + 0 + 50 + 30 + 5 + 0 + 30 - 35 + 0 - 2 + 0 + 0 - 35 + 1 - 50 - 50 - 50 + 0 + 0 + 0 + 0 + 0 =550

You can click here to view a table of pass1 calculations for all the rated players in this tournament.

Pass 2 Rating
The purpose of this pass is solely to determine ratings for unrated players. To do this, we first look at the ratings for rated players that came out of Pass 1 to determine an “Pass 2 Adjustment”. The logic for this is as follows:

  1. We calculate the points gained in Pass 1. Points gained is simply the difference between the Pass 1 Rating and the Initial Rating of a player:

    ρi2 = Pi1 - Pi0
    where,

    Symbol Universe Description
    Pi0 Pi0+ the initial rating for the i-th player. We use the symbol P and the superscript 0 to represent the idea that we sometimes refer to the process of identifying the initial rating of the given player as Pass 0 of the ratings processor.
    Pi1 Pi1+ the Pass 1 rating for the i-th player.
    ρi2 ρi2 the points gained by the i-th player in this tournament. Note here that we use the superscript 2 to denote that this value is calculated and used in Pass 2 of the ratings processor. Further, ρi2 only exists for players who have a well defined Pass 1 Rating. For Players with an undefined Pass 1 Rating (unrated players), will have an undefined ρi2.
    i i[1,170] the index of the player under consideration. i can be as small as 1 or as large as 170 for this tournament and the i-th player must be a rated player.

  2. For rated players, Pass 1 points gained, ρi2, is used to calculate the Pass 2 Adjustment in the following way:
    1. If a player gained less than 50 points (exclusive) in pass 1, then we set that player's Pass 2 Adjustment to his/her Initial Rating.
    2. If a player gained between 50 and 74 (inclusive) points in pass 1, then we set the player's Pass 2 Adjustment to his/her Final Pass1 Rating.
    3. If a player gains 75 or more points (inclusive) in pass 1, then the following formula applies:
      • If the player has won at least one match, and lost at least 1 match in the tournament, then the player's Pass 2 Adjustment is the average of his/her Final Pass 1 Rating and the average of his/her opponents rating from the best win and the worst loss, represented using the formula below:

        αi2 = Pi1 + Bi + Wi 2 2

        where αi2 is the Pass 2 Adjustment for the current player, Pi1 is the Pass 1 Rating, Bi is the rating of the highest rated opponent against which the current player won a match, and Wi is the rating of the lowest rated opponent against which the current player lost a match.
      • If a player has not lost any of his/her matches in the current tournament, the mathematical median (rounded down to the nearest integer) of all of the player's opponents initial rating is used as his/her Pass 2 Adjustment:

        αi2 = {Pk0}

        where Pk0 is the initial rating of the player who was the i-th player's opponent from the k-th match.
        Symbol Universe Description
        i i[1,170] the index of the player under consideration. i can be as small as 1 or as large as 170 for this tournament and the i-th player must be a rated player.
        q q[1,971] the index of the match result under consideration. q can be as small as 1 or as large as 971 for this tournament and the q-th match must be have both rated players as opponents.
        g g[1,5] the g-th game of the current match result under consideration. q can be as small as 1 or as large as 5 for this tournament assuming players play up to 5 games in a match.
        Pk0 Pk0+ initial rating of the i-th player's opponent from the k-th match.


      • Therefore, the Pass 2 Adjustment for Vivaan Chandra is calculated as follows:
        • Given the initial rating of 676,
        • and the Pass 1 rating of 550,
        • the Pass 1 gain is 550 - 676 = -126.
        • Since the Pass 1 gain of -126 is less than 50, the Pass 2 Rating (also referred to as Pass 2 Adjustment) is reset back to the initial rating.
        • Therefore the Pass 2 Adjustment for Vivaan Chandra is 676.

        You can click here to view a table of Pass 2 Adjustments for all the rated players in this tournament.

  3. After calculating the Pass 2 Adjustment for all the rated players as described above, we can now calculate the Pass 2 Rating for all the unrated players in this tournament (which is the main purpose of Pass 2). Pass 2 Rating is calculated using the following formula:
    1. If all of the matches of an unrated player are against other unrated players, then the Pass 2 Rating for that player is simply set to 1200. You can click here to view these players who received a 1200 Pass 2 Rating. Not all of Vivaan Chandra's matches were against unrated players. So this rule does not apply to him.
    2. For unrated players with wins and losses, where at least 1 of the opponents has an initial rating, the Pass 2 Rating is the average of the best win and the worst loss (using the Pass 2 Adjustment of all rated players) as defined by this formula here:

      Pi2 = Bi2 + Wi2 2

      where Pi2 is the Pass 2 Rating for the i-th player, Bi2 is the largest Pass 2 Adjustment (best win) of the opponenet against whom the i-th player won a match, and Wi2 is the smallest Pass 2 Adjustment (worst loss) of the opponent against whom the i-th player lost a match.
    3. For unrated players with all wins and no losses, where at least 1 of the opponents has an initial rating, the Pass 2 Rating is calculated using the following formula:
      Pi2 = Bi2 + k=0Mi-1 I(Bi2-αk2)
      where the function I(x) is defined as, \begin{equation} I(x)=\left\{ \begin{array}{ll} 10, & \text{if}\ x >= 1, x <= 50 \\ 5, & \text{if}\ x >= 51, x <=100 \\ 1, & \text{if}\ x >= 101, x <= 150 \\ 0, & \text{otherwise} \end{array}\right. \end{equation}
      where,
      Symbol Universe Description
      Pi2 Pi2+ the pass 2 rating, of the i-th player in this tournament only applicable to unrated players, where Pi0 is not defined
      Bi2 Bi2+ the largest of the Pass 2 Adjustments of opponents of the i-th player against whom he/she won a match.
      αk2 αk2+ the Pass 2 Adjustment of the player who was the opponent of the i-th player in the k-th match
      I(x) I:+ a function that maps all integers to one of the values from -- 0, 1, 5, 10.
      Mi Mi+ total number of matches played by the i-th player in this tournament
      k k[0,Mi-1]+ The index of the match of the i-th player ranging from 0 to Mi-1
    4. For unrated players with all losses and no wins, where at least 1 of the opponents has an initial rating, the Pass 2 Rating is calculated using the following formula:
      Pi2 = Wi2 + k=0Mi-1 I(Wi2-αk2)
      where I(x) is defined above and,

      Symbol Universe Description
      Pi2 Pi2+ the pass 2 rating, of the i-th player in this tournament only applicable to unrated players, where Pi0 is not defined
      Wi2 Wi2+ the smallest of the Pass 2 Adjustments of opponents of the i-th player against whom he/she lost a match.
      αk2 αk2+ the Pass 2 Adjustment of the player who was the opponent of the i-th player in the k-th match
      I(x) I:+ a function that maps all integers to one of the values from -- 0, 1, 5, 10.
      Mi Mi+ total number of matches played by the i-th player in this tournament
      k k[0,Mi-1]+ The index of the match of the i-th player ranging from 0 to Mi-1
    5. For the rated players, all the work done in Pass 1 and Pass 2 to undone and they have their ratings reset back to their initial ratings while the unrated players keep their Pass 2 Adjustment as their final Pass 2 Rating. Since Vivaan Chandra is a rated player, his Pass 2 Adjustment of 676 will be ignored, along with him Pass 1 Rating of 550 and his Pass 2 Rating will be set to his initial rating of 676 with which he came into this tournament.


Click here to see detailed information about the Pass 2 Ratings of all the other players in this tournament.

Pass 3 Rating
Any of the unrated players who have all wins or all losses are skipped in Pass 3. Since Vivaan Chandra has an initial rating of 676, he is not an unrated player, and therefore this rule does not apply to him. You can click here to view list of all the players that are skipped in this Pass 3.

Pass 3 Rating is calculated using 2 steps described below:
  1. In the first part of Pass 3, we apply the point exchange table described in Pass 1 above except this time by using all the players' Pass 2 Ratings. Looking at Vivaan Chandra's wins and losses and applying the point exchange table, gives us the following result:
    Vivaan Chandra's Wins
    Winner Loser
    Point Spread Outcome Gain Player USATT # Rating Player USATT # Rating
    214 EXPECTED 1 Vivaan Chandra 1170374 676 Varin Chandra 1170751 462
    39 EXPECTED 6 Vivaan Chandra 1170374 676 Denise Russo 266501 637
    62 EXPECTED 6 Vivaan Chandra 1170374 676 Tanvi Desai 1169576 614
    184 EXPECTED 2 Vivaan Chandra 1170374 676 Amanda Sun 230107 492
    532 UPSET 50 Vivaan Chandra 1170374 676 Changching Chan 1171852 1208
    161 UPSET 30 Vivaan Chandra 1170374 676 Joey Yin 1171821 837
    68 EXPECTED 5 Vivaan Chandra 1170374 676 Francisca Henriquez 270460 608
    161 UPSET 30 Vivaan Chandra 1170374 676 Joey Yin 1171821 837
    676 EXPECTED 0 Vivaan Chandra 1170374 676 Aarav Desai 269570 0
    0 0 Vivaan Chandra 1170374 0 Caleb Oshinsky 271244 0
    214 EXPECTED 1 Vivaan Chandra 1170374 676 Varin Chandra 1170751 462
    0 0 Vivaan Chandra 1170374 0 Andrew Ellis 1172453 0
    0 0 Vivaan Chandra 1170374 0 Mike Morales 271270 0

    Vivaan Chandra's Losses
    Winner Loser
    Point Spread Outcome Loss Player USATT # Rating Player USATT # Rating
    716 EXPECTED -0 Qi Cai 223588 1392 Vivaan Chandra 1170374 676
    289 EXPECTED -0 Mihir Herlekar 1170753 965 Vivaan Chandra 1170374 676
    289 EXPECTED -0 Mihir Herlekar 1170753 965 Vivaan Chandra 1170374 676
    0 -0 Milan Kovac 263652 0 Vivaan Chandra 1170374 0
    174 UPSET -35 Brandon Ge 217848 502 Vivaan Chandra 1170374 676
    0 -0 Jane Chong 271392 0 Vivaan Chandra 1170374 0
    329 EXPECTED -0 Qiuyi Jia 263263 1005 Vivaan Chandra 1170374 676
    0 -0 Jane Chong 271392 0 Vivaan Chandra 1170374 0
    165 UPSET -35 Samrithi Balaa Saravanan 1170762 511 Vivaan Chandra 1170374 676
    289 EXPECTED -0 Mihir Herlekar 1170753 965 Vivaan Chandra 1170374 676
    153 EXPECTED -2 Ron Zharzhavsky 221716 829 Vivaan Chandra 1170374 676
    165 UPSET -35 Samrithi Balaa Saravanan 1170762 511 Vivaan Chandra 1170374 676
    339 UPSET -50 Ryan Hsu 263649 337 Vivaan Chandra 1170374 676
    256 UPSET -50 Shrirang Krishnaprasad 269745 420 Vivaan Chandra 1170374 676
    265 UPSET -50 Abhinav Shirbhate 265334 411 Vivaan Chandra 1170374 676
    0 -0 Rick Gray 270979 0 Vivaan Chandra 1170374 0
    0 -0 Roelof Botha 271257 0 Vivaan Chandra 1170374 0
    662 EXPECTED -0 Shriraam Velayutham 223760 1338 Vivaan Chandra 1170374 676

    You can click here to view a table of outcomes and points gained/lost from all the matches with all the players in this tournament for Pass 3 Part 1.

    The "Outcome" column above, shows whether the match had an expected (player with the higher rating wins the match) or an upset (player with the higher rating loses the match) outcome. Based on this outcome, and using both the player's Pass 2 Rating, we apply the point exchange table from above and show the rating points earned and lost by Vivaan Chandra in the "Gain" column. Matches are divided up into two tables for wins and losses where points are "Gain"ed for the wins and "loss"ed for losses. Putting all the gains and losses together, we get the following math to calculate the rating for Vivaan Chandra in this first part of Pass 3:

    Pass 2 Rating Gains/Losses Pass 3 Part 1 Rating
    676 + 1 + 0 + 0 + 6 + 0 + 6 + 2 + 0 - 35 + 0 + 0 + 50 + 30 + 5 + 0 + 30 - 35 + 0 - 2 + 0 + 0 - 35 + 1 - 50 - 50 - 50 + 0 + 0 + 0 + 0 + 0 =550


    You can click here to view a table of these calculations for all the players in this tournament.

  2. Given the Pass 3 Part 1 rating calculated above, the second part of Pass 3 looks very similar to the part of Pass 2 that deals with rated players where we calculate their Pass 2 Adjustment.
    1. First, we calculate the points gained in Pass 3 Part 1. Points gained is simply the difference between the Pass 3 Part 1 Rating and the Pass 2 Rating of a player:

      ρi3 = pi3 - Pi2
      where,

      Symbol Universe Description
      Pi2 Pi2+ the Pass 2 Rating for the i-th player.
      pi3 pi3+ the Pass 3 Part 1 rating for the i-th player. (Note that since this is an intermediate result, we are using a lower case p instead of the upper case P that we use to indicate final result from each pass of the ratings processor.
      ρi3 ρi3 the points gained by the i-th player in this tournament in Pass 3.
      i i[1,170] the index of the player under consideration. i can be as small as 1 or as large as 170 for this tournament.

  3. Pass 3 points gained, ρi3, is then used to calculate the Pass 3 Part 2 Rating in the following way:
    1. If a player gained less than 50 points (exclusive) in Pass 3 Part 1, then we set that player's Pass 3 Part 2 Rating to his/her Pass 2 Rating.
    2. If a player gained between 50 and 74 (inclusive) points in Pass 3 Part 1, then we set the player's Pass 3 Part 2 Rating to his/her Pass 3 Part 1 Rating.
    3. If a player gains 75 or more points (inclusive) in Pass 3 Part 1, then the following formula applies:
      • If the player has won at least one match, and lost at least 1 match in the tournament, then the player's Pass 3 Part 2 Rating is the average of his/her Pass 3 Part 1 Rating and the average of his/her opponents rating from the best win and the worst loss, represented using the formula below:

        αi3 = pi3 + Bi3 + Wi3 2 2

        where αi3 is the Pass 3 Part 2 Rating for the current player, pi3 is the Pass 3 Part 1 Rating, Bi3 is the rating of the highest rated opponent against which the current player won a match, and Wi is the rating of the lowest rated opponent against which the current player lost a match.
      • If a player has not lost any of his/her matches in the current tournament, the mathematical median (rounded down to the nearest integer) of all of the player's opponents rating is used as his/her Pass 3 Part 2 Rating:
        αi3 = {pk3}

        where pk3 is the Pass 3 Part 1 Rating of the i-th player's opponent from the k-th match.

      • Therefore, the Pass 3 Part 2 Rating for Vivaan Chandra is calculated as follows:
        • Given the Pass 2 Rating of 676,
        • and the Pass 3 Part 1 rating of 550,
        • the Pass 3 Part 1 gain is 550 - 676 = -126.
        • Since the Pass 3 Gain of -126 is less than 50, the Pass 3 Part 2 Rating is reset back to the Pass 2 Rating.
        • Therefore the Pass 3 Part 2 Rating for Vivaan Chandra is 676.

      The Pass 3 Part 2 rating ends up becoming the final Pass 3 rating (also referred to as the Pass 3 Adjustment) except as follows:
      • In the cases where the Pass 3 Part 2 rating is less than the players' initial rating Pi0, the Pass 3 rating is reset back to that players initial rating. Vivaan Chandra's Pass 3 Part 2 Rating came out to 676. Since this value is greater than Vivaan Chandra's initial rating of 676, his Pass 3 Adjustment is set to his Pass 3 Part 2 Rating of 676.

      • It is possible for the admin of this tournament to override the Pass 3 Adjustment calculated above with a value they deem appropriate. Vivaan Chandra does not have a manually overridden value for his Pass 3 Adjustment, therefore the value remains at 676.
      You can click here to view a table of Pass 3 Part 2 Ratings for all the players in this tournament along with any manually overridden values.

Pass 4 Rating
Pass 4 is the final pass of the ratings processor. In this pass, we take the adjusted ratings (Pass 3 Adjustment) of all the rated players, and the assigned rating of unrated players (Pass 2 Rating), and apply the point exchange table to the match results based on these ratings to arrive at a final rating. Looking at Vivaan Chandra's match results and applying the point exchange table, gives us the following result:

Vivaan Chandra's Wins
Winner Loser
Point Spread Outcome Gain Player USATT # Rating Player USATT # Rating
214 EXPECTED 1 Vivaan Chandra 1170374 676 Varin Chandra 1170751 462
39 EXPECTED 6 Vivaan Chandra 1170374 676 Denise Russo 266501 637
7 EXPECTED 8 Vivaan Chandra 1170374 676 Tanvi Desai 1169576 669
121 UPSET 25 Vivaan Chandra 1170374 676 Amanda Sun 230107 797
532 UPSET 50 Vivaan Chandra 1170374 676 Changching Chan 1171852 1208
161 UPSET 30 Vivaan Chandra 1170374 676 Joey Yin 1171821 837
68 EXPECTED 5 Vivaan Chandra 1170374 676 Francisca Henriquez 270460 608
161 UPSET 30 Vivaan Chandra 1170374 676 Joey Yin 1171821 837
150 EXPECTED 2 Vivaan Chandra 1170374 676 Aarav Desai 269570 526
607 EXPECTED 0 Vivaan Chandra 1170374 676 Caleb Oshinsky 271244 69
214 EXPECTED 1 Vivaan Chandra 1170374 676 Varin Chandra 1170751 462
676 EXPECTED 0 Vivaan Chandra 1170374 676 Andrew Ellis 1172453 0
525 EXPECTED 0 Vivaan Chandra 1170374 676 Mike Morales 271270 151

Vivaan Chandra's Losses
Winner Loser
Point Spread Outcome Loss Player USATT # Rating Player USATT # Rating
840 EXPECTED -0 Qi Cai 223588 1516 Vivaan Chandra 1170374 676
289 EXPECTED -0 Mihir Herlekar 1170753 965 Vivaan Chandra 1170374 676
289 EXPECTED -0 Mihir Herlekar 1170753 965 Vivaan Chandra 1170374 676
601 EXPECTED -0 Milan Kovac 263652 1277 Vivaan Chandra 1170374 676
376 EXPECTED -0 Brandon Ge 217848 1052 Vivaan Chandra 1170374 676
663 EXPECTED -0 Jane Chong 271392 1339 Vivaan Chandra 1170374 676
329 EXPECTED -0 Qiuyi Jia 263263 1005 Vivaan Chandra 1170374 676
663 EXPECTED -0 Jane Chong 271392 1339 Vivaan Chandra 1170374 676
36 UPSET -10 Samrithi Balaa Saravanan 1170762 640 Vivaan Chandra 1170374 676
289 EXPECTED -0 Mihir Herlekar 1170753 965 Vivaan Chandra 1170374 676
153 EXPECTED -2 Ron Zharzhavsky 221716 829 Vivaan Chandra 1170374 676
36 UPSET -10 Samrithi Balaa Saravanan 1170762 640 Vivaan Chandra 1170374 676
212 UPSET -40 Ryan Hsu 263649 464 Vivaan Chandra 1170374 676
134 UPSET -25 Shrirang Krishnaprasad 269745 542 Vivaan Chandra 1170374 676
19 EXPECTED -7 Abhinav Shirbhate 265334 695 Vivaan Chandra 1170374 676
269 UPSET -50 Rick Gray 270979 407 Vivaan Chandra 1170374 676
170 UPSET -35 Roelof Botha 271257 506 Vivaan Chandra 1170374 676
662 EXPECTED -0 Shriraam Velayutham 223760 1338 Vivaan Chandra 1170374 676

You can click here to view a table of outcomes and points gained/lost from all the matches with all the players in this tournament.

The "Outcome" column above, shows whether the match had an expected (player with the higher rating wins the match) or an upset (player with the higher rating loses the match) outcome. Based on this outcome, and using both the players' Pass 3 Adjustment, we apply the point exchange table from above and show the ratings points earned and lost by Vivaan Chandra in the "Gain" and "Loss" columns. Matches are separated out into two tables for wins and losses where points are gained and lost respectively. We get the following math to calculate the Pass 4 Rating for Vivaan Chandra:

Pass 3 Rating Gains/Losses Pass 4 Rating
676 + 1 + 0 + 0 + 6 + 0 + 8 + 25 + 0 + 0 + 0 + 0 + 50 + 30 + 5 + 0 + 30 - 10 + 0 - 2 + 2 + 0 - 10 + 1 - 40 - 25 - 7 - 50 - 35 + 0 + 0 + 0 =655

You can click here to view a table of Pass 4 calculations for all the players in this tournament.