VIPR Rating Audit Trail

Diane McCarthy

Member ID: TVCPC-P0241   Generated: 2026-09-04 12:10 PM

3.5580 -> 3.5362
Net -0.0218   Record 3-5   Win Rate 38%   Games 8
Initial VIPR
3.5580
Registry seed
Current VIPR
3.5362
After latest rated game
Net Movement
-0.0218
Current minus initial
Record
3-5
38% win rate · 8 rated games

Storyline

Diane McCarthy entered VIPR with an initial registry rating of 3.5580. Across 8 rated doubles games, the player went 3-5 and moved -0.0218, finishing at 3.5362.

Why It Moved

AI-generated explanation: The 3-5 record produced +0.0312 from wins and -0.0530 from losses, for a net move of -0.0218. The biggest single-game impact was -0.0128 against Jolynne Colvin as partner and Jeanan Delp / Carolyn Roan as opponents. In game #2 on 2026-08-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.5848 vs opponent team 3.4844.

Partner Chemistry

Partnership patterns are starting to emerge.

Diane's most common partner signals so far: Jolynne Colvin (0-2, 0%), Carolyn Roan (1-0, 100%), Gina M Park (1-0, 100%), Michele Blanchard (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

Diane has faced Jolynne Colvin 4 times - record: 2-2. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-08-13 2-2 3.5580 3.5586 +0.0006
2026-08-20 1-3 3.5586 3.5362 -0.0224

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-08-13 Loss 8-11 Jeanan Delp Michele Blanchard / Jolynne Colvin 3.5580 -0.0069 3.5511
2 2026-08-13 Loss 8-11 Jolynne Colvin Jeanan Delp / Carolyn Roan 3.5511 -0.0128 3.5383
3 2026-08-13 Win 11-10 Carolyn Roan Michele Blanchard / Jeanan Delp 3.5383 +0.0111 3.5494
4 2026-08-13 Win 11-5 Michele Blanchard Jolynne Colvin / Carolyn Roan 3.5494 +0.0092 3.5586
5 2026-08-20 Loss 1-11 Jolynne Colvin Sandy Zutter / Sharon McFarland 3.5586 -0.0117 3.5469
6 2026-08-20 Loss 1-11 Sharon McFarland Sandy Zutter / Gina M Park 3.5469 -0.0102 3.5367
7 2026-08-20 Loss 6-11 Sandy Zutter Jolynne Colvin / Gina M Park 3.5367 -0.0114 3.5253
8 2026-08-20 Win 11-8 Gina M Park Jolynne Colvin / Sharon McFarland 3.5253 +0.0109 3.5362

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 3.5261 3.6371 +0.1111 -0.0069
2 3.5848 3.4844 -0.1004 -0.0128
3 3.5107 3.5493 -0.0386 +0.0111
4 3.5752 3.5489 +0.0263 +0.0092
5 3.5802 3.5193 -0.0609 -0.0117
6 3.5113 3.5033 -0.0080 -0.0102
7 3.5626 3.5123 -0.0503 -0.0114
8 3.5018 3.5346 -0.0329 +0.0109

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 +0.1111 -> computed delta -0.0069; 3.5580 -0.0069 = 3.5511