VIPR Rating Audit Trail

Carol Spano

Member ID: TVCPC-P0487   Generated: 2026-07-23 05:16 PM

2.5490 -> 2.5846
Net +0.0356   Record 5-3   Win Rate 62%   Games 8
Initial VIPR
2.5490
Registry seed
Current VIPR
2.5846
After latest rated game
Net Movement
+0.0356
Current minus initial
Record
5-3
62% win rate · 8 rated games

Storyline

Carol Spano entered VIPR with an initial registry rating of 2.5490. Across 8 rated doubles games, the player went 5-3 and moved +0.0356, finishing at 2.5846.

Why It Moved

AI-generated explanation: The 5-3 record produced +0.0578 from wins and -0.0222 from losses, for a net move of +0.0356. The biggest single-game impact was +0.0167 against Joy McCormick as partner and Kathi Lancaster / Jackie Huckins as opponents. In game #5 on 2026-07-09, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.5347 vs opponent team 2.8162.

Partner Chemistry

Partnership patterns are starting to emerge.

Carol's most common partner signals so far: Tammy Wilson (2-0, 100%), Jackie Huckins (0-2, 0%), Cynthia Speiran (1-0, 100%), Joy McCormick (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

Carol has faced Jackie Huckins 4 times - record: 3-1. Clear ownership of the matchup.

Session Summary

DateW-LStartEndNet
2026-07-02 2-2 2.5490 2.5596 +0.0106
2026-07-09 3-1 2.5596 2.5846 +0.0250

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02 Loss 7-11 Cheryl Prochilo Tammy Wilson / Jackie Huckins 2.5490 -0.0080 2.5410
2 2026-07-02 Win 11-7 Tammy Wilson Courtney Robinson / Cheryl Prochilo 2.5410 +0.0133 2.5543
3 2026-07-02 Loss 7-11 Jackie Huckins Courtney Robinson / Cheryl Prochilo 2.5543 -0.0071 2.5472
4 2026-07-02 Win 11-9 Tammy Wilson Courtney Robinson / Jackie Huckins 2.5472 +0.0124 2.5596
5 2026-07-09 Win 11-10 Joy McCormick Kathi Lancaster / Jackie Huckins 2.5596 +0.0167 2.5763
6 2026-07-09 Win 11-2 Cynthia Speiran Jackie Huckins / Joy McCormick 2.5763 +0.0117 2.5880
7 2026-07-09 Loss 2-11 Jackie Huckins Kathi Lancaster / Cynthia Speiran 2.5880 -0.0071 2.5809
8 2026-07-09 Win 11-2 Kathi Lancaster Joy McCormick / Cynthia Speiran 2.5809 +0.0037 2.5846

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 2.5953 2.6672 +0.0719 -0.0080
2 2.5873 2.7063 -0.1189 +0.0133
3 2.5880 2.6930 +0.1050 -0.0071
4 2.5957 2.6792 -0.0835 +0.0124
5 2.5347 2.8162 -0.2815 +0.0167
6 2.5076 2.5676 -0.0599 +0.0117
7 2.5972 2.7012 +0.1040 -0.0071
8 2.7671 2.5066 +0.2605 +0.0037

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 +0.0719 -> computed delta -0.0080; 2.5490 -0.0080 = 2.5410