Initial VIPR
2.8790
Registry seed
Current VIPR
2.8548
After latest rated game
Net Movement
-0.0242
Current minus initial
Record
1-3
25% win rate · 4 rated games
Storyline
Cathy Shaw entered VIPR with an initial registry rating of 2.8790. Across 4 rated doubles games, the player went 1-3 and moved -0.0242, finishing at 2.8548.
Why It Moved
AI-generated explanation: The 1-3 record produced +0.0065 from wins and -0.0307 from losses, for a net move of -0.0242. The biggest single-game impact was -0.0140 against Debbie Chaffee as partner and Barbara Amato / Fern S Reisinger as opponents. In game #4 on 2026-08-20, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.8654 vs opponent team 2.7184.
Partner Chemistry
Partnership patterns are starting to emerge.
Cathy's most common partner signals so far: Nancy Krau (1-0, 100%), Barbara Amato (0-1, 0%), Debbie Chaffee (0-1, 0%), Fern S Reisinger (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
Cathy is currently on a 1-game losing streak in rated VIPR games.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-08-20 | 1-3 | 2.8790 | 2.8548 | -0.0242 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-08-20 | Loss | 3-11 | Barbara Amato | Debbie Chaffee / Nancy Krau | 2.8790 | -0.0084 | 2.8706 |
| 2 | 2026-08-20 | Loss | 3-11 | Fern S Reisinger | Nancy Krau / Barbara Amato | 2.8706 | -0.0083 | 2.8623 |
| 3 | 2026-08-20 | Win | 11-7 | Nancy Krau | Debbie Chaffee / Fern S Reisinger | 2.8623 | +0.0065 | 2.8688 |
| 4 | 2026-08-20 | Loss | 9-11 | Debbie Chaffee | Barbara Amato / Fern S Reisinger | 2.8688 | -0.0140 | 2.8548 |
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 | 2.8142 | 2.8706 | +0.0564 | -0.0084 |
| 2 | 2.7540 | 2.8143 | +0.0602 | -0.0083 |
| 3 | 2.8758 | 2.7482 | +0.1276 | +0.0065 |
| 4 | 2.8654 | 2.7184 | -0.1470 | -0.0140 |
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 +0.0564 -> computed delta -0.0084; 2.8790 -0.0084 = 2.8706