VIPR Rating Audit Trail

Dawn Mead

Member ID: TVCPC-P0569   Generated: 2026-09-04 12:10 PM

2.9400 -> 2.9283
Net -0.0117   Record 6-6   Win Rate 50%   Games 12
Initial VIPR
2.9400
Registry seed
Current VIPR
2.9283
After latest rated game
Net Movement
-0.0117
Current minus initial
Record
6-6
50% win rate · 12 rated games

Storyline

Dawn Mead entered VIPR with an initial registry rating of 2.9400. Across 12 rated doubles games, the player went 6-6 and moved -0.0117, finishing at 2.9283.

Why It Moved

AI-generated explanation: The 6-6 record produced +0.0584 from wins and -0.0701 from losses, for a net move of -0.0117. The biggest single-game impact was -0.0167 against Julee Johanson as partner and Joy McCormick / Debbie Chaffee as opponents. In game #11 on 2026-08-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.9606 vs opponent team 2.6818.

Partner Chemistry

Partnership patterns are starting to emerge.

Dawn's most common partner signals so far: Mary LaFrancois (2-0, 100%), Nancy Krau (0-2, 0%), Barbara Amato (1-0, 100%), Dana Gainer (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

Dawn has faced Mary LaFrancois 4 times - record: 1-3. A tough matchup so far.

Session Summary

DateW-LStartEndNet
2026-07-02 2-2 2.9400 2.9400 +0.0000
2026-07-09 3-1 2.9400 2.9553 +0.0153
2026-08-13 1-3 2.9553 2.9283 -0.0270

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02 Win 11-3 Elena Gordon Nancy Krau / Dana Gainer 2.9400 +0.0090 2.9490
2 2026-07-02 Win 11-7 Dana Gainer Elena Gordon / Rose Kopja 2.9490 +0.0109 2.9599
3 2026-07-02 Loss 4-11 Rose Kopja Nancy Krau / Elena Gordon 2.9599 -0.0107 2.9492
4 2026-07-02 Loss 0-11 Nancy Krau Dana Gainer / Rose Kopja 2.9492 -0.0092 2.9400
5 2026-07-09 Win 11-4 Kim Johnson Nancy Krau / Mary LaFrancois 2.9400 +0.0085 2.9485
6 2026-07-09 Win 11-2 Mary LaFrancois Kim Johnson / Barbara Amato 2.9485 +0.0074 2.9559
7 2026-07-09 Win 11-9 Barbara Amato Nancy Krau / Kim Johnson 2.9559 +0.0127 2.9686
8 2026-07-09 Loss 7-11 Nancy Krau Mary LaFrancois / Barbara Amato 2.9686 -0.0133 2.9553
9 2026-08-13 Loss 8-11 Joy McCormick Julee Johanson / Mary LaFrancois 2.9553 -0.0051 2.9502
10 2026-08-13 Win 11-9 Mary LaFrancois Julee Johanson / Debbie Chaffee 2.9502 +0.0099 2.9601
11 2026-08-13 Loss 3-11 Julee Johanson Joy McCormick / Debbie Chaffee 2.9601 -0.0167 2.9434
12 2026-08-13 Loss 7-11 Debbie Chaffee Joy McCormick / Mary LaFrancois 2.9434 -0.0151 2.9283

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 2.9583 2.9235 +0.0348 +0.0090
2 2.9469 2.9785 -0.0316 +0.0109
3 2.9499 2.9270 -0.0229 -0.0107
4 2.9170 2.9440 +0.0271 -0.0092
5 2.9330 2.8821 +0.0509 +0.0085
6 2.8925 2.8008 +0.0917 +0.0074
7 2.8100 2.9044 -0.0944 +0.0127
8 2.9107 2.7910 -0.1197 -0.0133
9 2.7155 2.9033 +0.1877 -0.0051
10 2.9019 2.8968 +0.0051 +0.0099
11 2.9606 2.6818 -0.2788 -0.0167
12 2.8971 2.7021 -0.1950 -0.0151

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 +0.0348 -> computed delta +0.0090; 2.9400 +0.0090 = 2.9490