VIPR Rating Audit Trail

James Russ

Member ID: TVCPC-P0018   Generated: 2026-09-04 12:10 PM

2.8910 -> 2.9349
Net +0.0439   Record 18-6   Win Rate 75%   Games 24
Initial VIPR
2.8910
Registry seed
Current VIPR
2.9349
After latest rated game
Net Movement
+0.0439
Current minus initial
Record
18-6
75% win rate · 24 rated games

Storyline

James Russ entered VIPR with an initial registry rating of 2.8910. Across 24 rated doubles games, the player went 18-6 and moved +0.0439, finishing at 2.9349.

Why It Moved

AI-generated explanation: The 18-6 record produced +0.0860 from wins and -0.0421 from losses, for a net move of +0.0439. The biggest single-game impact was +0.0159 against Mark Gamrat as partner and Roger Thurman / Ken Gallagher as opponents. In game #16 on 2026-08-20, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.3360 vs opponent team 2.5734.

Partner Chemistry

Partnership patterns are starting to emerge.

James's most common partner signals so far: Rick Ross (4-2, 67%), Mark Gamrat (3-1, 75%), Louis Colella (1-2, 33%), Ken Gallagher (2-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

James has faced Rick Ross 9 times - record: 8-1. Clear ownership of the matchup.

Session Summary

DateW-LStartEndNet
2026-07-02 2-2 2.8910 2.8810 -0.0100
2026-07-16 3-1 2.8810 2.8866 +0.0056
2026-08-13 4-0 2.8866 2.9046 +0.0180
2026-08-20 4-0 2.9046 2.9273 +0.0227
2026-08-27 2-2 2.9273 2.9187 -0.0086
2026-09-03 3-1 2.9187 2.9349 +0.0162

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02 Win 11-2 Mike Cluck Mark Gamrat / Louis Colella 2.8910 +0.0002 2.8912
2 2026-07-02 Loss 1-11 Louis Colella Mark Gamrat / Ramon Jimenez 2.8912 -0.0106 2.8806
3 2026-07-02 Loss 1-11 Mark Gamrat Mike Cluck / Ramon Jimenez 2.8806 -0.0007 2.8799
4 2026-07-02 Win 11-5 Ramon Jimenez Mike Cluck / Louis Colella 2.8799 +0.0011 2.8810
5 2026-07-16 Win 11-5 Maurice Finnegan Rick Ross / Mark Gamrat 2.8810 +0.0010 2.8820
6 2026-07-16 Loss 4-11 Louis Colella Maurice Finnegan / Rick Ross 2.8820 -0.0042 2.8778
7 2026-07-16 Win 11-6 Rick Ross Mark Gamrat / Louis Colella 2.8778 +0.0009 2.8787
8 2026-07-16 Win 11-5 Mark Gamrat Maurice Finnegan / Louis Colella 2.8787 +0.0079 2.8866
9 2026-08-13 Win 11-4 Rick Ross Mark Gamrat / Randy DeVries 2.8866 +0.0020 2.8886
10 2026-08-13 Win 11-6 Louis Colella Rick Ross / Mark Gamrat 2.8886 +0.0071 2.8957
11 2026-08-13 Win 11-1 Mark Gamrat Randy DeVries / Louis Colella 2.8957 +0.0077 2.9034
12 2026-08-13 Win 11-10 Randy DeVries Rick Ross / Louis Colella 2.9034 +0.0012 2.9046
13 2026-08-20 Win 11-7 Roger Thurman Rick Ross / Ken Gallagher 2.9046 +0.0017 2.9063
14 2026-08-20 Win 11-8 Ken Gallagher Rick Ross / Mark Gamrat 2.9063 +0.0022 2.9085
15 2026-08-20 Win 11-6 Rick Ross Roger Thurman / Mark Gamrat 2.9085 +0.0029 2.9114
16 2026-08-20 Win 11-5 Mark Gamrat Roger Thurman / Ken Gallagher 2.9114 +0.0159 2.9273
17 2026-08-27 Loss 5-11 Rick Ross Robert Gannon / Roger Thurman 2.9273 -0.0040 2.9233
18 2026-08-27 Win 11-8 Roger Thurman Maurice Finnegan / Ken Gallagher 2.9233 +0.0019 2.9252
19 2026-08-27 Loss 5-11 Robert Gannon Maurice Finnegan / Roger Thurman 2.9252 -0.0157 2.9095
20 2026-08-27 Win 11-4 Ken Gallagher Maurice Finnegan / Rick Ross 2.9095 +0.0092 2.9187
21 2026-09-03 Win 11-2 Danny Landry Maurice Finnegan / Rick Ross 2.9187 +0.0018 2.9205
22 2026-09-03 Win 11-9 Maurice Finnegan Danny Landry / Rick Ross 2.9205 +0.0075 2.9280
23 2026-09-03 Win 11-6 Rick Ross Danny Landry / Maurice Finnegan 2.9280 +0.0138 2.9418
24 2026-09-03 Loss 6-11 Rick Ross Danny Landry / Maurice Finnegan 2.9418 -0.0069 2.9349

Formula Homework

These rows show the team ratings used in the adjustment calculation. The computed delta is the signed rating change produced by the current v0.6 formula.

#Player Team ( AVG )Opponent Team ( AVG )Winner-Loser VIPR DiffComputed Delta
1 2.9363 2.0878 +0.8485 +0.0002
2 2.3316 2.3118 -0.0199 -0.0106
3 2.3317 2.9074 +0.5757 -0.0007
4 2.8675 2.3745 +0.4930 +0.0011
5 2.7198 2.2132 +0.5066 +0.0010
6 2.3227 2.5517 +0.2290 -0.0042
7 2.6198 2.0827 +0.5371 +0.0009
8 2.3272 2.2540 +0.0732 +0.0079
9 2.6332 2.2508 +0.3824 +0.0020
10 2.3283 2.2252 +0.1031 +0.0071
11 2.3306 2.2481 +0.0825 +0.0077
12 2.6889 2.2176 +0.4714 +0.0012
13 2.8831 2.4677 +0.4154 +0.0017
14 2.5825 2.2226 +0.3599 +0.0022
15 2.6335 2.3284 +0.3051 +0.0029
16 2.3360 2.5734 -0.2374 +0.0159
17 2.6423 2.8809 +0.2385 -0.0040
18 2.8807 2.4917 +0.3890 +0.0019
19 2.9332 2.7076 -0.2256 -0.0157
20 2.5769 2.5495 +0.0274 +0.0092
21 2.9420 2.5403 +0.4017 +0.0018
22 2.7311 2.6429 +0.0882 +0.0075
23 2.6166 2.7574 -0.1407 +0.0138
24 2.6304 2.7436 +0.1131 -0.0069

Rating movement formula

Team VIPR = average - (average - lower partner) * CRF, with CRF = 0.40.

Adjustment = 0.02 / (1 + 10 ^ (2.5 * (winner team VIPR - loser team VIPR))).

Winning partners both receive +adjustment. Losing partners both receive -adjustment.

Score margin is recorded for context but is not currently part of the v0.6 formula.

First game check: winner-loser VIPR diff +0.8485 -> computed delta +0.0002; 2.8910 +0.0002 = 2.8912