VIPR Rating Audit Trail

Fern S Reisinger

Member ID: TVCPC-P0316   Generated: 2026-07-23 05:16 PM

2.6930 -> 2.7130
Net +0.0200   Record 4-4   Win Rate 50%   Games 8
Initial VIPR
2.6930
Registry seed
Current VIPR
2.7130
After latest rated game
Net Movement
+0.0200
Current minus initial
Record
4-4
50% win rate · 8 rated games

Storyline

Fern S Reisinger entered VIPR with an initial registry rating of 2.6930. Across 8 rated doubles games, the player went 4-4 and moved +0.0200, finishing at 2.7130.

Why It Moved

AI-generated explanation: The 4-4 record produced +0.0495 from wins and -0.0295 from losses, for a net move of +0.0200. The biggest single-game impact was +0.0140 against ANN DREWEK as partner and Deborah Austin / Darleen Obrien as opponents. In game #3 on 2026-07-09, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.6946 vs opponent team 2.8415.

Partner Chemistry

Partnership patterns are starting to emerge.

Fern's most common partner signals so far: ANN DREWEK (1-0, 100%), Beth Arms (1-0, 100%), Debbie Chaffee (1-0, 100%), Kathi Lancaster (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Streak

Fern is currently on a 1-game winning streak in rated VIPR games.

Session Summary

DateW-LStartEndNet
2026-07-09 2-2 2.6930 2.7016 +0.0086
2026-07-16 2-2 2.7016 2.7130 +0.0114

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-09 Loss 3-11 Darleen Obrien Debbie Chaffee / ANN DREWEK 2.6930 -0.0094 2.6836
2 2026-07-09 Loss 4-11 Deborah Austin Debbie Chaffee / Darleen Obrien 2.6836 -0.0069 2.6767
3 2026-07-09 Win 11-7 ANN DREWEK Deborah Austin / Darleen Obrien 2.6767 +0.0140 2.6907
4 2026-07-09 Win 11-3 Debbie Chaffee Deborah Austin / ANN DREWEK 2.6907 +0.0109 2.7016
5 2026-07-16 Loss 5-11 Kim Johnson Beth Arms / Tammy Wilson 2.7016 -0.0098 2.6918
6 2026-07-16 Win 11-8 Kathi Lancaster Beth Arms / Kim Johnson 2.6918 +0.0113 2.7031
7 2026-07-16 Loss 6-11 Tammy Wilson Kathi Lancaster / Kim Johnson 2.7031 -0.0034 2.6997
8 2026-07-16 Win 11-4 Beth Arms Kathi Lancaster / Tammy Wilson 2.6997 +0.0133 2.7130

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 2.7398 2.7620 +0.0222 -0.0094
2 2.7324 2.8437 +0.1113 -0.0069
3 2.6946 2.8415 -0.1469 +0.0140
4 2.7415 2.7729 -0.0313 +0.0109
5 2.7613 2.7676 +0.0063 -0.0098
6 2.8486 2.8926 -0.0439 +0.0113
7 2.7101 2.9834 +0.2734 -0.0034
8 2.7554 2.8748 -0.1194 +0.0133

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 +0.0222 -> computed delta -0.0094; 2.6930 -0.0094 = 2.6836