VIPR Rating Audit Trail

Sally Musser

Member ID: TVCPC-P0365   Generated: 2026-09-04 12:10 PM

3.5640 -> 3.5567
Net -0.0073   Record 6-6   Win Rate 50%   Games 12
Initial VIPR
3.5640
Registry seed
Current VIPR
3.5567
After latest rated game
Net Movement
-0.0073
Current minus initial
Record
6-6
50% win rate · 12 rated games

Storyline

Sally Musser entered VIPR with an initial registry rating of 3.5640. Across 12 rated doubles games, the player went 6-6 and moved -0.0073, finishing at 3.5567.

Why It Moved

AI-generated explanation: The 6-6 record produced +0.0528 from wins and -0.0601 from losses, for a net move of -0.0073. The biggest single-game impact was +0.0120 against Carolyn Roan as partner and Jolynne Colvin / Christine Ressler as opponents. In game #4 on 2026-07-09, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.4667 vs opponent team 3.5355.

Partner Chemistry

Partnership patterns are starting to emerge.

Sally's most common partner signals so far: Carolyn Roan (2-1, 67%), Sharon McFarland (0-2, 0%), Christine Ressler (1-0, 100%), Jeanan Delp (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

Sally has faced Sharon McFarland 5 times - record: 3-2. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-07-09 3-1 3.5640 3.5807 +0.0167
2026-08-06 2-2 3.5807 3.5801 -0.0006
2026-09-03 1-3 3.5801 3.5567 -0.0234

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-09 Win 11-4 Jolynne Colvin Sharon McFarland / Christine Ressler 3.5640 +0.0061 3.5701
2 2026-07-09 Win 11-5 Christine Ressler Sharon McFarland / Carolyn Roan 3.5701 +0.0079 3.5780
3 2026-07-09 Loss 10-11 Sharon McFarland Jolynne Colvin / Carolyn Roan 3.5780 -0.0093 3.5687
4 2026-07-09 Win 11-2 Carolyn Roan Jolynne Colvin / Christine Ressler 3.5687 +0.0120 3.5807
5 2026-08-06 Loss 1-11 Nancy Grzesiek Stacey Cellini / Michele Blanchard 3.5807 -0.0069 3.5738
6 2026-08-06 Win 11-5 Jeanan Delp Michele Blanchard / Nancy Grzesiek 3.5738 +0.0108 3.5846
7 2026-08-06 Loss 1-11 Michele Blanchard Stacey Cellini / Jeanan Delp 3.5846 -0.0115 3.5731
8 2026-08-06 Win 11-9 Stacey Cellini Nancy Grzesiek / Jeanan Delp 3.5731 +0.0070 3.5801
9 2026-09-03 Loss 7-11 Carolyn Roan Gina M Park / Sharon McFarland 3.5801 -0.0114 3.5687
10 2026-09-03 Loss 2-11 Sharon McFarland Carolyn Roan / Gina M Park 3.5687 -0.0103 3.5584
11 2026-09-03 Loss 6-11 Gina M Park Carolyn Roan / Sharon McFarland 3.5584 -0.0107 3.5477
12 2026-09-03 Win 11-4 Carolyn Roan Gina M Park / Sharon McFarland 3.5477 +0.0090 3.5567

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 3.5919 3.4497 +0.1422 +0.0061
2 3.5028 3.4304 +0.0724 +0.0079
3 3.4693 3.4946 +0.0253 -0.0093
4 3.4667 3.5355 -0.0688 +0.0120
5 3.5290 3.6402 +0.1112 -0.0069
6 3.5130 3.5423 -0.0292 +0.0108
7 3.5983 3.5468 -0.0516 -0.0115
8 3.6029 3.4952 +0.1078 +0.0070
9 3.5492 3.4999 -0.0493 -0.0114
10 3.5278 3.5172 -0.0106 -0.0103
11 3.5345 3.5104 -0.0241 -0.0107
12 3.5462 3.5115 +0.0347 +0.0090

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 +0.1422 -> computed delta +0.0061; 3.5640 +0.0061 = 3.5701