Initial VIPR
2.7140
Registry seed
Current VIPR
2.7214
After latest rated game
Net Movement
+0.0074
Current minus initial
Record
5-7
42% win rate · 12 rated games
Storyline
ANN DREWEK entered VIPR with an initial registry rating of 2.7140. Across 12 rated doubles games, the player went 5-7 and moved +0.0074, finishing at 2.7214.
Why It Moved
AI-generated explanation: The record was below .500, but the rating rose because the 5 win(s) added +0.0581 against stronger situations while the 7 losses cost -0.0507. The biggest single-game impact was -0.0142 against Michele Chew as partner and Joy McCormick / Pilar Winters as opponents. In game #11 on 2026-07-23, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.7438 vs opponent team 2.5895.
Partner Chemistry
Partnership patterns are starting to emerge.
ANN's most common partner signals so far: Pilar Winters (1-1, 50%), Darleen Obrien (1-0, 100%), Debbie Chaffee (1-0, 100%), Fern S Reisinger (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
ANN has faced Joy McCormick 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-09 | 3-1 | 2.7140 | 2.7395 | +0.0255 |
| 2026-07-16 | 0-4 | 2.7395 | 2.7249 | -0.0146 |
| 2026-07-23 | 2-2 | 2.7249 | 2.7214 | -0.0035 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-09 | Win | 11-2 | Darleen Obrien | Deborah Austin / Debbie Chaffee | 2.7140 | +0.0130 | 2.7270 |
| 2 | 2026-07-09 | Win | 11-3 | Debbie Chaffee | Darleen Obrien / Fern S Reisinger | 2.7270 | +0.0094 | 2.7364 |
| 3 | 2026-07-09 | Win | 11-7 | Fern S Reisinger | Deborah Austin / Darleen Obrien | 2.7364 | +0.0140 | 2.7504 |
| 4 | 2026-07-09 | Loss | 3-11 | Deborah Austin | Debbie Chaffee / Fern S Reisinger | 2.7504 | -0.0109 | 2.7395 |
| 5 | 2026-07-16 | Loss | 3-11 | Shawn Spaulding | Marcie Stern / Rose Hoffmann | 2.7395 | -0.0023 | 2.7372 |
| 6 | 2026-07-16 | Loss | 3-11 | Debbie Fischer | Marcie Stern / Shawn Spaulding | 2.7372 | -0.0040 | 2.7332 |
| 7 | 2026-07-16 | Loss | 6-11 | Rose Hoffmann | Debbie Fischer / Shawn Spaulding | 2.7332 | -0.0046 | 2.7286 |
| 8 | 2026-07-16 | Loss | 9-11 | Marcie Stern | Debbie Fischer / Rose Hoffmann | 2.7286 | -0.0037 | 2.7249 |
| 9 | 2026-07-23 | Loss | 5-11 | Pilar Winters | Joy McCormick / Michele Chew | 2.7249 | -0.0110 | 2.7139 |
| 10 | 2026-07-23 | Win | 11-4 | Joy McCormick | Michele Chew / Pilar Winters | 2.7139 | +0.0118 | 2.7257 |
| 11 | 2026-07-23 | Loss | 3-11 | Michele Chew | Joy McCormick / Pilar Winters | 2.7257 | -0.0142 | 2.7115 |
| 12 | 2026-07-23 | Win | 11-10 | Pilar Winters | Joy McCormick / Michele Chew | 2.7115 | +0.0099 | 2.7214 |
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 | 2.7506 | 2.8575 | -0.1069 | +0.0130 |
| 2 | 2.7620 | 2.7398 | +0.0222 | +0.0094 |
| 3 | 2.6946 | 2.8415 | -0.1469 | +0.0140 |
| 4 | 2.7729 | 2.7415 | -0.0313 | -0.0109 |
| 5 | 2.8286 | 3.1854 | +0.3568 | -0.0023 |
| 6 | 2.8593 | 3.1015 | +0.2422 | -0.0040 |
| 7 | 2.8605 | 3.0689 | +0.2084 | -0.0046 |
| 8 | 2.8887 | 3.1472 | +0.2586 | -0.0037 |
| 9 | 2.6606 | 2.6266 | -0.0340 | -0.0110 |
| 10 | 2.6123 | 2.6748 | -0.0625 | +0.0118 |
| 11 | 2.7438 | 2.5895 | -0.1544 | -0.0142 |
| 12 | 2.6505 | 2.6480 | +0.0026 | +0.0099 |
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 -0.1069 -> computed delta +0.0130; 2.7140 +0.0130 = 2.7270