VIPR Rating Audit Trail

Tony Chiravolo

Member ID: TVCPC-P0045   Generated: 2026-07-23 05:16 PM

4.4550 -> 4.4709
Net +0.0159   Record 7-5   Win Rate 58%   Games 12
Initial VIPR
4.4550
Registry seed
Current VIPR
4.4709
After latest rated game
Net Movement
+0.0159
Current minus initial
Record
7-5
58% win rate · 12 rated games

Storyline

Tony Chiravolo entered VIPR with an initial registry rating of 4.4550. Across 12 rated doubles games, the player went 7-5 and moved +0.0159, finishing at 4.4709.

Why It Moved

AI-generated explanation: The 7-5 record produced +0.0721 from wins and -0.0562 from losses, for a net move of +0.0159. The biggest single-game impact was +0.0160 against Kreg S Hamm as partner and Anthony Campbell / Brian Pierce as opponents. In game #12 on 2026-07-23, the player's team was the lower-rated team, so the win carried a larger gain: player team 4.1895 vs opponent team 4.4288.

Partner Chemistry

Partnership patterns are starting to emerge.

Tony's most common partner signals so far: Gary Jones (2-0, 100%), Steve LaVallee (2-0, 100%), Brian Pierce (0-2, 0%), Guy Ford (0-2, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

Tony has faced Guy Ford 4 times - record: 3-1. Clear ownership of the matchup.

Session Summary

DateW-LStartEndNet
2026-07-02 1-3 4.4550 4.4321 -0.0229
2026-07-16 3-1 4.4321 4.4510 +0.0189
2026-07-23 3-1 4.4510 4.4709 +0.0199

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02 Loss 5-11 Guy Ford Brian Pierce / Chris Eversole 4.4550 -0.0127 4.4423
2 2026-07-02 Loss 10-11 Chris Eversole Brian Pierce / Gary Jones 4.4423 -0.0108 4.4315
3 2026-07-02 Loss 5-11 Brian Pierce Guy Ford / Gary Jones 4.4315 -0.0102 4.4213
4 2026-07-02 Win 11-6 Gary Jones Guy Ford / Chris Eversole 4.4213 +0.0108 4.4321
5 2026-07-16 Loss 7-11 Guy Ford Tony Toledo / Steve LaVallee 4.4321 -0.0117 4.4204
6 2026-07-16 Win 11-5 Gary Jones Steve LaVallee / Guy Ford 4.4204 +0.0114 4.4318
7 2026-07-16 Win 11-9 Steve LaVallee Tony Toledo / Gary Jones 4.4318 +0.0097 4.4415
8 2026-07-16 Win 11-9 Tony Toledo Guy Ford / Gary Jones 4.4415 +0.0095 4.4510
9 2026-07-23 Win 11-9 Kevin Faust Kreg S Hamm / Brian Pierce 4.4510 +0.0032 4.4542
10 2026-07-23 Loss 5-11 Brian Pierce Anthony Campbell / Steve LaVallee 4.4542 -0.0108 4.4434
11 2026-07-23 Win 11-5 Steve LaVallee Kevin Faust / Anthony Campbell 4.4434 +0.0115 4.4549
12 2026-07-23 Win 11-10 Kreg S Hamm Anthony Campbell / Brian Pierce 4.4549 +0.0160 4.4709

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 4.4757 4.3807 -0.0950 -0.0127
2 4.4041 4.3761 -0.0280 -0.0108
3 4.4217 4.4151 -0.0066 -0.0102
4 4.3895 4.4170 -0.0275 +0.0108
5 4.4566 4.3973 -0.0592 -0.0117
6 4.3834 4.4322 -0.0487 +0.0114
7 4.4032 4.3927 +0.0105 +0.0097
8 4.4230 4.4057 +0.0173 +0.0095
9 4.4667 4.1765 +0.2903 +0.0032
10 4.4443 4.4175 -0.0269 -0.0108
11 4.4295 4.4818 -0.0523 +0.0115
12 4.1895 4.4288 -0.2394 +0.0160

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 -0.0950 -> computed delta -0.0127; 4.4550 -0.0127 = 4.4423