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.
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.
Catherine has faced Amy Fortier 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 2-2 | 2.0000 | 2.0001 | +0.0001 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 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 Diff | Computed 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