for
Seema Cavale

USATT#: 219686

##### Introduction
This page explains how Seema Cavale (USATT# 219686)'s rating went from 1959 to 2048 at the 2019 JOOLA North American Teams held on 29 Nov 2019 - 1 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 Seema Cavale for this tournament.

Initial Rating Pass 1 Pass 2 Pass 3 Final Rating (Pass 4)
1959 2043 1959 2026 2048

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 1031 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 ${X}_{i}^{3}$, 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 2019 JOOLA North American Teams held on 29 Nov 2019 - 1 Dec 2019 for Seema Cavale, and its source tournament are as follows:
Initial Rating From Tournament Start Day End Day
1959 2019 SPTTC WA State Championships & October Open 26 Oct 2019 27 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 Seema Cavale's match results and applying the point exchange table, gives us the following result:

##### Seema Cavale's Wins
Winner Loser
Point Spread Outcome Gain Player USATT # Rating Player USATT # Rating
80 EXPECTED 5 Seema Cavale 219686 1959 Kaleb Huang 97161 1879
9 EXPECTED 8 Seema Cavale 219686 1959 Albert S Yang 94028 1950
77 UPSET 16 Seema Cavale 219686 1959 Jamaal Abrams 27727 2036
9 UPSET 8 Seema Cavale 219686 1959 Pedro Matos Ortiz 215747 1968
135 EXPECTED 3 Seema Cavale 219686 1959 Melvin Avila 1132355 1824
110 UPSET 20 Seema Cavale 219686 1959 Dwight King 5706 2069
101 UPSET 20 Seema Cavale 219686 1959 Ronnie Tyrone Lilly 7775 2060
32 UPSET 10 Seema Cavale 219686 1959 Soaram Kim 94708 1991
103 UPSET 20 Seema Cavale 219686 1959 Junkai Yang 221802 2062
67 UPSET 16 Seema Cavale 219686 1959 Lanre Ibrahim Mohammed 214626 2026
152 UPSET 30 Seema Cavale 219686 1959 Tsz Lun (Alan) Chu 79092 2111

##### Seema Cavale's Losses
Winner Loser
Point Spread Outcome Loss Player USATT # Rating Player USATT # Rating
22 EXPECTED -7 Charles Shen 217235 1981 Seema Cavale 219686 1959
186 EXPECTED -2 Shi-yue Qiu 1817 2145 Seema Cavale 219686 1959
52 UPSET -13 Qiang Ye 31717 1907 Seema Cavale 219686 1959
101 EXPECTED -4 Tony Ma 215463 2060 Seema Cavale 219686 1959
39 UPSET -13 Tianyi Zhou 95031 1920 Seema Cavale 219686 1959
200 EXPECTED -1 Michael D. D. Henry 6592 2159 Seema Cavale 219686 1959
117 EXPECTED -3 Lennox Douglas 3212 2076 Seema Cavale 219686 1959
54 EXPECTED -6 Willy Leparulo 13012 2013 Seema Cavale 219686 1959
40 UPSET -13 Arjun Tikku 80763 1919 Seema Cavale 219686 1959
19 UPSET -10 Dmitry Ryvkin 29479 1940 Seema Cavale 219686 1959