VIPR Rating Audit Trail

Beth Walker

Member ID: TVCPC-P0638   Generated: 2026-10-29 07:46 PM

4.0800 -> 4.0492
Net -0.0308   Record 1-3   Win Rate 25%   Games 4
Initial VIPR
4.0800
Registry seed
Current VIPR
4.0492
After latest rated game
Net Movement
-0.0308
Current minus initial
Record
1-3
25% win rate · 4 rated games

Storyline

Beth Walker entered VIPR with an initial registry rating of 4.0800. Across 4 rated doubles games, the player went 1-3 and moved -0.0308, finishing at 4.0492.

Why It Moved

AI-generated explanation: The 1-3 record produced +0.0069 from wins and -0.0377 from losses, for a net move of -0.0308. The biggest single-game impact was -0.0153 against Diana Sellers as partner and Sue Reich / Kim Christopherson as opponents. In game #3 on 2026-10-22, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.9944 vs opponent team 3.7877.

Partner Chemistry

Partnership patterns are starting to emerge.

Beth's most common partner signals so far: Sue Reich (1-1, 50%), Diana Sellers (0-1, 0%), Kim Christopherson (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

Beth has faced Diana Sellers 3 times - record: 1-2. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-10-22 1-3 4.0800 4.0492 -0.0308

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-10-22
Thursday Ladies Ladder League - Fall 2026
Win 11-5 Sue Reich Kim Christopherson / Diana Sellers 4.0800 +0.0069 4.0869
2 2026-10-22
Thursday Ladies Ladder League - Fall 2026
Loss 2-11 Kim Christopherson Sue Reich / Diana Sellers 4.0869 -0.0088 4.0781
3 2026-10-22
Thursday Ladies Ladder League - Fall 2026
Loss 10-11 Diana Sellers Sue Reich / Kim Christopherson 4.0781 -0.0153 4.0628
4 2026-10-22
Thursday Ladies Ladder League - Fall 2026
Loss 4-11 Sue Reich Kim Christopherson / Diana Sellers 4.0628 -0.0136 4.0492

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 3.9318 3.8205 +0.1113 +0.0069
2 3.8548 3.8975 +0.0428 -0.0088
3 3.9944 3.7877 -0.2066 -0.0153
4 3.9484 3.8162 -0.1321 -0.0136

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 +0.1113 -> computed delta +0.0069; 4.0800 +0.0069 = 4.0869