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Eriel Marimon

USATT#: 1165005

Introduction
This page explains how Eriel Marimon (USATT# 1165005)'s rating went from 1346 to 1613 at the Butterfly 2019 December BTTC Open Tournament held on 15 Dec 2019 - 15 Dec 2019. 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 Eriel Marimon for this tournament.

Initial Rating Pass 1 Pass 2 Pass 3 Final Rating (Pass 4)
1346 1543 1346 1566 1613


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 87 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 Butterfly 2019 December BTTC Open Tournament held on 15 Dec 2019 - 15 Dec 2019 for Eriel Marimon, and its source tournament are as follows:
Initial Rating From Tournament Start Day End Day
1346 Butterfly 2019 October BTTC Tournament 11 Oct 2019 13 Oct 2019

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 Eriel Marimon's match results and applying the point exchange table, gives us the following result:

Eriel Marimon's Wins
Winner Loser
Point Spread Outcome Gain Player USATT # Rating Player USATT # Rating
26 EXPECTED 7 Eriel Marimon 1165005 1346 Mike Jameson 83024 1320
261 EXPECTED 0 Eriel Marimon 1165005 1346 Ian Gascoigne 88770 1085
279 EXPECTED 0 Eriel Marimon 1165005 1346 Arjun Talati 91504 1067
651 EXPECTED 0 Eriel Marimon 1165005 1346 Alan Motoki 222856 695
279 EXPECTED 0 Eriel Marimon 1165005 1346 Arjun Talati 91504 1067
289 UPSET 50 Eriel Marimon 1165005 1346 Dennis Leung 30774 1635
335 UPSET 50 Eriel Marimon 1165005 1346 Luis Mejia 222018 1681
36 EXPECTED 7 Eriel Marimon 1165005 1346 Luis Quicano 70594 1310
157 EXPECTED 2 Eriel Marimon 1165005 1346 Nathaniel Dilworth 1131686 1189
0 0 Eriel Marimon 1165005 0 Gary Kay 1168993 0
7 UPSET 8 Eriel Marimon 1165005 1346 Jason Leon 229470 1353
0 0 Eriel Marimon 1165005 0 LUKE MELNIK 1168988 0
380 UPSET 50 Eriel Marimon 1165005 1346 Lariel Dominguez Rodri 230665 1726
0 0 Eriel Marimon 1165005 0 Cosmin Ioan 1168990 0
449 UPSET 50 Eriel Marimon 1165005 1346 Sasha Veljkovic 76389 1795

Eriel Marimon's Losses
Winner Loser
Point Spread Outcome Loss Player USATT # Rating Player USATT # Rating
124 EXPECTED -3 Brian Baro 203102 1470 Eriel Marimon 1165005 1346
7 EXPECTED -8 Jason Leon 229470 1353 Eriel Marimon 1165005 1346
373 EXPECTED -0 Sergei Bekrenev 222825 1719 Eriel Marimon 1165005 1346
134 EXPECTED -3 Malquiel Linares-Soto 229974 1480 Eriel Marimon 1165005 1346
54 UPSET -13 Gigi Pacurar 229472 1292 Eriel Marimon 1165005 1346
0 -0 Sebastian Cruz Ruiz 1168994 0 Eriel Marimon 1165005 0
0 -0 Sebastian Cruz Ruiz 1168994 0 Eriel Marimon 1165005 0

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 Eriel Marimon 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 Eriel Marimon:

Initial Rating Gains/Losses Pass 1 Rating
1346 - 3 + 7 + 0 + 0 + 0 - 8 + 0 + 0 - 3 + 50 - 13 + 50 + 0 + 7 + 2 + 0 + 0 + 8 + 0 + 50 + 0 + 50 =1543

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[1,87] the index of the player under consideration. i can be as small as 1 or as large as 87 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[1,87] the index of the player under consideration. i can be as small as 1 or as large as 87 for this tournament and the i-th player must be a rated player.
        q q[1,469] the index of the match result under consideration. q can be as small as 1 or as large as 469 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 Eriel Marimon is calculated as follows:
        • Given the initial rating of 1346,
        • and the Pass 1 rating of 1543,
        • the Pass 1 gain is 1543 - 1346 = 197.
        • Since the Pass 1 Gain of 197 is greater than 74, and Eriel Marimon has won some matches and lost some matches, the Pass 2 Rating is calculated to be the average of the Pass 1 Rating and the average of the Best win and the worst loss:

          1543 + 1795 + 1292 2 2 =1543    (mod 1)


        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 Eriel Marimon'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 Eriel Marimon is a rated player, his Pass 2 Adjustment of 1543 will be ignored, along with him Pass 1 Rating of 1543 and his Pass 2 Rating will be set to his initial rating of 1346 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 Eriel Marimon has an initial rating of 1346, 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 Eriel Marimon's wins and losses and applying the point exchange table, gives us the following result:
    Eriel Marimon's Wins
    Winner Loser
    Point Spread Outcome Gain Player USATT # Rating Player USATT # Rating
    26 EXPECTED 7 Eriel Marimon 1165005 1346 Mike Jameson 83024 1320
    261 EXPECTED 0 Eriel Marimon 1165005 1346 Ian Gascoigne 88770 1085
    279 EXPECTED 0 Eriel Marimon 1165005 1346 Arjun Talati 91504 1067
    651 EXPECTED 0 Eriel Marimon 1165005 1346 Alan Motoki 222856 695
    279 EXPECTED 0 Eriel Marimon 1165005 1346 Arjun Talati 91504 1067
    289 UPSET 50 Eriel Marimon 1165005 1346 Dennis Leung 30774 1635
    335 UPSET 50 Eriel Marimon 1165005 1346 Luis Mejia 222018 1681
    36 EXPECTED 7 Eriel Marimon 1165005 1346 Luis Quicano 70594 1310
    157 EXPECTED 2 Eriel Marimon 1165005 1346 Nathaniel Dilworth 1131686 1189
    0 0 Eriel Marimon 1165005 0 Gary Kay 1168993 0
    7 UPSET 8 Eriel Marimon 1165005 1346 Jason Leon 229470 1353
    0 0 Eriel Marimon 1165005 0 LUKE MELNIK 1168988 0
    380 UPSET 50 Eriel Marimon 1165005 1346 Lariel Dominguez Rodri 230665 1726
    0 0 Eriel Marimon 1165005 0 Cosmin Ioan 1168990 0
    449 UPSET 50 Eriel Marimon 1165005 1346 Sasha Veljkovic 76389 1795

    Eriel Marimon's Losses
    Winner Loser
    Point Spread Outcome Loss Player USATT # Rating Player USATT # Rating
    124 EXPECTED -3 Brian Baro 203102 1470 Eriel Marimon 1165005 1346
    7 EXPECTED -8 Jason Leon 229470 1353 Eriel Marimon 1165005 1346
    373 EXPECTED -0 Sergei Bekrenev 222825 1719 Eriel Marimon 1165005 1346
    134 EXPECTED -3 Malquiel Linares-Soto 229974 1480 Eriel Marimon 1165005 1346
    54 UPSET -13 Gigi Pacurar 229472 1292 Eriel Marimon 1165005 1346
    0 -0 Sebastian Cruz Ruiz 1168994 0 Eriel Marimon 1165005 0
    0 -0 Sebastian Cruz Ruiz 1168994 0 Eriel Marimon 1165005 0

    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 Eriel Marimon 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 Eriel Marimon in this first part of Pass 3:

    Pass 2 Rating Gains/Losses Pass 3 Part 1 Rating
    1346 - 3 + 7 + 0 + 0 + 0 - 8 + 0 + 0 - 3 + 50 - 13 + 50 + 0 + 7 + 2 + 0 + 0 + 8 + 0 + 50 + 0 + 50 =1543


    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[1,87] the index of the player under consideration. i can be as small as 1 or as large as 87 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 Eriel Marimon is calculated as follows:
        • Given the Pass 2 Rating of 1346,
        • and the Pass 3 Part 1 rating of 1543,
        • the Pass 3 Part 1 gain is 1543 - 1346 = 197.
        • Since the Pass 3 Gain of 197 is greater than 74, and Eriel Marimon has won some matches and lost some matches, the Pass 3 Part 2 Rating is calculated to be the average of the Pass 3 Part 1 Rating and the average of the Best win and the worst loss:

          1543 + 1795 + 1292 2 2 =1543.25


      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. Eriel Marimon's Pass 3 Part 2 Rating came out to 1566. Since this value is greater than Eriel Marimon's initial rating of 1346, his Pass 3 Adjustment is set to his Pass 3 Part 2 Rating of 1566.

      • It is possible for the admin of this tournament to override the Pass 3 Adjustment calculated above with a value they deem appropriate. Eriel Marimon does not have a manually overridden value for his Pass 3 Adjustment, therefore the value remains at 1566.
      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 Eriel Marimon's match results and applying the point exchange table, gives us the following result:

Eriel Marimon's Wins
Winner Loser
Point Spread Outcome Gain Player USATT # Rating Player USATT # Rating
246 EXPECTED 0 Eriel Marimon 1165005 1566 Mike Jameson 83024 1320
481 EXPECTED 0 Eriel Marimon 1165005 1566 Ian Gascoigne 88770 1085
499 EXPECTED 0 Eriel Marimon 1165005 1566 Arjun Talati 91504 1067
871 EXPECTED 0 Eriel Marimon 1165005 1566 Alan Motoki 222856 695
499 EXPECTED 0 Eriel Marimon 1165005 1566 Arjun Talati 91504 1067
69 UPSET 16 Eriel Marimon 1165005 1566 Dennis Leung 30774 1635
115 UPSET 25 Eriel Marimon 1165005 1566 Luis Mejia 222018 1681
256 EXPECTED 0 Eriel Marimon 1165005 1566 Luis Quicano 70594 1310
77 EXPECTED 5 Eriel Marimon 1165005 1566 Nathaniel Dilworth 1131686 1489
256 EXPECTED 0 Eriel Marimon 1165005 1566 Gary Kay 1168993 1310
14 EXPECTED 7 Eriel Marimon 1165005 1566 Jason Leon 229470 1552
42 EXPECTED 6 Eriel Marimon 1165005 1566 LUKE MELNIK 1168988 1524
160 UPSET 30 Eriel Marimon 1165005 1566 Lariel Dominguez Rodri 230665 1726
331 EXPECTED 0 Eriel Marimon 1165005 1566 Cosmin Ioan 1168990 1235
229 UPSET 45 Eriel Marimon 1165005 1566 Sasha Veljkovic 76389 1795

Eriel Marimon's Losses
Winner Loser
Point Spread Outcome Loss Player USATT # Rating Player USATT # Rating
35 EXPECTED -7 Brian Baro 203102 1601 Eriel Marimon 1165005 1566
14 UPSET -10 Jason Leon 229470 1552 Eriel Marimon 1165005 1566
153 EXPECTED -2 Sergei Bekrenev 222825 1719 Eriel Marimon 1165005 1566
86 UPSET -16 Malquiel Linares-Soto 229974 1480 Eriel Marimon 1165005 1566
274 UPSET -50 Gigi Pacurar 229472 1292 Eriel Marimon 1165005 1566
200 EXPECTED -1 Sebastian Cruz Ruiz 1168994 1766 Eriel Marimon 1165005 1566
200 EXPECTED -1 Sebastian Cruz Ruiz 1168994 1766 Eriel Marimon 1165005 1566

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 Eriel Marimon 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 Eriel Marimon:

Pass 3 Rating Gains/Losses Pass 4 Rating
1566 - 7 + 0 + 0 + 0 + 0 - 10 - 2 + 0 - 16 + 16 - 50 + 25 - 1 + 0 + 5 - 1 + 0 + 7 + 6 + 30 + 0 + 45 =1613

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