VIPR Rating Audit Trail

Catherine Rozmiarek

Member ID: TVCPC-P0555   Generated: 2026-07-23 05:16 PM

2.0000 -> 2.0001
Net +0.0001   Record 2-2   Win Rate 50%   Games 4
Initial VIPR
2.0000
Registry seed
Current VIPR
2.0001
After latest rated game
Net Movement
+0.0001
Current minus initial
Record
2-2
50% win rate · 4 rated games

Storyline

Catherine Rozmiarek entered VIPR with an initial registry rating of 2.0000. Across 4 rated doubles games, the player went 2-2 and moved +0.0001, finishing at 2.0001.

Why It Moved

AI-generated explanation: The 2-2 record produced +0.0203 from wins and -0.0202 from losses, for a net move of +0.0001. The biggest single-game impact was +0.0103 against Pamela Uriarte as partner and Amy Fortier / melinda moreno as opponents. In game #4 on 2026-07-02, the two teams were nearly even by pre-game team VIPR: player team 1.9899 vs opponent team 2.0019.

Partner Chemistry

Partnership patterns are starting to emerge.

Catherine's most common partner signals so far: Pamela Uriarte (1-1, 50%), Amy Fortier (1-0, 100%), melinda moreno (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

Catherine has faced Amy Fortier 3 times - record: 1-2. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-07-02 2-2 2.0000 2.0001 +0.0001

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02 Win 11-4 Amy Fortier melinda moreno / Pamela Uriarte 2.0000 +0.0100 2.0100
2 2026-07-02 Loss 5-11 Pamela Uriarte Amy Fortier / melinda moreno 2.0100 -0.0100 2.0000
3 2026-07-02 Loss 2-11 melinda moreno Amy Fortier / Pamela Uriarte 2.0000 -0.0102 1.9898
4 2026-07-02 Win 11-8 Pamela Uriarte Amy Fortier / melinda moreno 1.9898 +0.0103 2.0001

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 2.0000 2.0000 +0.0000 +0.0100
2 1.9960 1.9960 +0.0000 -0.0100
3 2.0000 1.9920 -0.0080 -0.0102
4 1.9899 2.0019 -0.0120 +0.0103

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 +0.0000 -> computed delta +0.0100; 2.0000 +0.0100 = 2.0100