VIPR Rating Audit Trail

Lisa Dreier

Member ID: TVCPC-P0326   Generated: 2026-07-23 05:16 PM

3.4540 -> 3.4457
Net -0.0083   Record 1-2   Win Rate 33%   Games 3
Initial VIPR
3.4540
Registry seed
Current VIPR
3.4457
After latest rated game
Net Movement
-0.0083
Current minus initial
Record
1-2
33% win rate · 3 rated games

Storyline

Lisa Dreier entered VIPR with an initial registry rating of 3.4540. Across 3 rated doubles games, the player went 1-2 and moved -0.0083, finishing at 3.4457.

Why It Moved

AI-generated explanation: The 1-2 record produced +0.0116 from wins and -0.0199 from losses, for a net move of -0.0083. The biggest single-game impact was +0.0116 against Jennifer Hill as partner and Ann Moreland / Nancy Grzesiek as opponents. In game #1 on 2026-07-02, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.4555 vs opponent team 3.5124.

Partner Chemistry

Partnership patterns are starting to emerge.

Lisa's most common partner signals so far: Jennifer Hill (1-0, 100%), Ann Moreland (0-1, 0%), Jean Narod (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Streak

Lisa is currently on a 2-game losing streak in rated VIPR games.

Session Summary

DateW-LStartEndNet
2026-07-02 1-2 3.4540 3.4457 -0.0083

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02 Win 11-9 Jennifer Hill Ann Moreland / Nancy Grzesiek 3.4540 +0.0116 3.4656
2 2026-07-02 Loss 2-11 Jean Narod Nancy Grzesiek / Jennifer Hill 3.4656 -0.0084 3.4572
3 2026-07-02 Loss 3-11 Ann Moreland Jennifer Hill / Jean Narod 3.4572 -0.0115 3.4457

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 3.4555 3.5124 -0.0569 +0.0116
2 3.4225 3.4789 +0.0565 -0.0084
3 3.4720 3.4206 -0.0513 -0.0115

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 -0.0569 -> computed delta +0.0116; 3.4540 +0.0116 = 3.4656