Initial VIPR
2.7870
Registry seed
Current VIPR
2.7340
After latest rated game
Net Movement
-0.0530
Current minus initial
Record
2-6
25% win rate · 8 rated games
Storyline
Michele Chew entered VIPR with an initial registry rating of 2.7870. Across 8 rated doubles games, the player went 2-6 and moved -0.0530, finishing at 2.7340.
Why It Moved
AI-generated explanation: The 2-6 record produced +0.0118 from wins and -0.0648 from losses, for a net move of -0.0530. The biggest single-game impact was -0.0189 against Fern S Reisinger as partner and Amy Fortier / Laurie Watson as opponents. In game #6 on 2026-08-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.7274 vs opponent team 2.2249.
Partner Chemistry
Partnership patterns are starting to emerge.
Michele's most common partner signals so far: Joy McCormick (1-1, 50%), Nancy Krau (1-0, 100%), Amy Fortier (0-1, 0%), ANN DREWEK (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
Michele has faced ANN DREWEK 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-23 | 1-3 | 2.7870 | 2.7621 | -0.0249 |
| 2026-08-13 | 1-3 | 2.7621 | 2.7340 | -0.0281 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-23 | Win | 11-5 | Joy McCormick | ANN DREWEK / Pilar Winters | 2.7870 | +0.0110 | 2.7980 |
| 2 | 2026-07-23 | Loss | 4-11 | Pilar Winters | Joy McCormick / ANN DREWEK | 2.7980 | -0.0118 | 2.7862 |
| 3 | 2026-07-23 | Loss | 3-11 | ANN DREWEK | Joy McCormick / Pilar Winters | 2.7862 | -0.0142 | 2.7720 |
| 4 | 2026-07-23 | Loss | 10-11 | Joy McCormick | ANN DREWEK / Pilar Winters | 2.7720 | -0.0099 | 2.7621 |
| 5 | 2026-08-13 | Win | 11-6 | Nancy Krau | Amy Fortier / Fern S Reisinger | 2.7621 | +0.0008 | 2.7629 |
| 6 | 2026-08-13 | Loss | 9-11 | Fern S Reisinger | Amy Fortier / Laurie Watson | 2.7629 | -0.0189 | 2.7440 |
| 7 | 2026-08-13 | Loss | 1-11 | Amy Fortier | Nancy Krau / Laurie Watson | 2.7440 | -0.0011 | 2.7429 |
| 8 | 2026-08-13 | Loss | 7-11 | Laurie Watson | Nancy Krau / Fern S Reisinger | 2.7429 | -0.0089 | 2.7340 |
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 | 2.6266 | 2.6606 | -0.0340 | +0.0110 |
| 2 | 2.6748 | 2.6123 | -0.0625 | -0.0118 |
| 3 | 2.7438 | 2.5895 | -0.1544 | -0.0142 |
| 4 | 2.6480 | 2.6505 | +0.0026 | -0.0099 |
| 5 | 2.7980 | 2.2366 | +0.5614 | +0.0008 |
| 6 | 2.7274 | 2.2249 | -0.5025 | -0.0189 |
| 7 | 2.2586 | 2.7511 | +0.4926 | -0.0011 |
| 8 | 2.7114 | 2.7511 | +0.0397 | -0.0089 |
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 -0.0340 -> computed delta +0.0110; 2.7870 +0.0110 = 2.7980