VIPR Rating Audit Trail

Janice Czerwinski

Member ID: TVCPC-P0693   Generated: 2026-10-29 07:46 PM

3.5190 -> 3.5361
Net +0.0171   Record 3-1   Win Rate 75%   Games 4
Initial VIPR
3.5190
Registry seed
Current VIPR
3.5361
After latest rated game
Net Movement
+0.0171
Current minus initial
Record
3-1
75% win rate · 4 rated games

Storyline

Janice Czerwinski entered VIPR with an initial registry rating of 3.5190. Across 4 rated doubles games, the player went 3-1 and moved +0.0171, finishing at 3.5361.

Why It Moved

AI-generated explanation: The 3-1 record produced +0.0282 from wins and -0.0111 from losses, for a net move of +0.0171. The biggest single-game impact was -0.0111 against Nancy Grzesiek as partner and Melissa Terhark / Cindy Hilderbrand as opponents. In game #4 on 2026-10-29, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.4740 vs opponent team 3.4348.

Partner Chemistry

Partnership patterns are starting to emerge.

Janice's most common partner signals so far: Cindy Hilderbrand (1-0, 100%), Melissa Terhark (1-0, 100%), Suzie Dunn (1-0, 100%), Nancy Grzesiek (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

Janice is currently on a 1-game losing streak in rated VIPR games.

Session Summary

DateW-LStartEndNet
2026-10-29 3-1 3.5190 3.5361 +0.0171

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-10-29
Thursday Ladies Ladder League - Fall 2026
Win 11-6 Melissa Terhark Suzie Dunn / Nancy Grzesiek 3.5190 +0.0089 3.5279
2 2026-10-29
Thursday Ladies Ladder League - Fall 2026
Win 11-3 Cindy Hilderbrand Melissa Terhark / Suzie Dunn 3.5279 +0.0104 3.5383
3 2026-10-29
Thursday Ladies Ladder League - Fall 2026
Win 11-2 Suzie Dunn Nancy Grzesiek / Cindy Hilderbrand 3.5383 +0.0089 3.5472
4 2026-10-29
Thursday Ladies Ladder League - Fall 2026
Loss 5-11 Nancy Grzesiek Melissa Terhark / Cindy Hilderbrand 3.5472 -0.0111 3.5361

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 3.4966 3.4587 +0.0379 +0.0089
2 3.4500 3.4643 -0.0143 +0.0104
3 3.4732 3.4343 +0.0389 +0.0089
4 3.4740 3.4348 -0.0391 -0.0111

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 +0.0379 -> computed delta +0.0089; 3.5190 +0.0089 = 3.5279