Initial VIPR
2.8770
Registry seed
Current VIPR
2.8333
After latest rated game
Net Movement
-0.0437
Current minus initial
Record
13-15
46% win rate · 28 rated games
Storyline
Debbie Chaffee entered VIPR with an initial registry rating of 2.8770. Across 28 rated doubles games, the player went 13-15 and moved -0.0437, finishing at 2.8333.
Why It Moved
AI-generated explanation: The 13-15 record produced +0.1052 from wins and -0.1489 from losses, for a net move of -0.0437. The biggest single-game impact was +0.0167 against Joy McCormick as partner and Dawn Mead / Julee Johanson as opponents. In game #14 on 2026-08-13, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.6818 vs opponent team 2.9606.
Partner Chemistry
Partnership patterns are starting to emerge.
Debbie's most common partner signals so far: Beth Arms (3-0, 100%), Barbara Amato (2-1, 67%), Fern S Reisinger (1-1, 50%), Joy McCormick (1-1, 50%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Debbie has faced Beth Arms 6 times - record: 1-5. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 1-3 | 2.8770 | 2.8568 | -0.0202 |
| 2026-07-09 | 3-1 | 2.8568 | 2.8710 | +0.0142 |
| 2026-08-06 | 2-2 | 2.8710 | 2.8646 | -0.0064 |
| 2026-08-13 | 2-2 | 2.8646 | 2.8621 | -0.0025 |
| 2026-08-20 | 2-2 | 2.8621 | 2.8586 | -0.0035 |
| 2026-08-27 | 2-2 | 2.8586 | 2.8524 | -0.0062 |
| 2026-09-03 | 1-3 | 2.8524 | 2.8333 | -0.0191 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Win | 11-7 | Beth Arms | Deborah Austin / Kathi Lancaster | 2.8770 | +0.0130 | 2.8900 |
| 2 | 2026-07-02 | Loss | 7-11 | Barbara Amato | Beth Arms / Deborah Austin | 2.8900 | -0.0076 | 2.8824 |
| 3 | 2026-07-02 | Loss | 2-11 | Deborah Austin | Kathi Lancaster / Barbara Amato | 2.8824 | -0.0102 | 2.8722 |
| 4 | 2026-07-02 | Loss | 2-11 | Kathi Lancaster | Beth Arms / Barbara Amato | 2.8722 | -0.0154 | 2.8568 |
| 5 | 2026-07-09 | Loss | 2-11 | Deborah Austin | Darleen Obrien / ANN DREWEK | 2.8568 | -0.0130 | 2.8438 |
| 6 | 2026-07-09 | Win | 11-3 | ANN DREWEK | Darleen Obrien / Fern S Reisinger | 2.8438 | +0.0094 | 2.8532 |
| 7 | 2026-07-09 | Win | 11-4 | Darleen Obrien | Deborah Austin / Fern S Reisinger | 2.8532 | +0.0069 | 2.8601 |
| 8 | 2026-07-09 | Win | 11-3 | Fern S Reisinger | Deborah Austin / ANN DREWEK | 2.8601 | +0.0109 | 2.8710 |
| 9 | 2026-08-06 | Loss | 10-11 | Pilar Winters | Beth Arms / Kim Johnson | 2.8710 | -0.0056 | 2.8654 |
| 10 | 2026-08-06 | Loss | 9-11 | Wendy Bachman | Kim Johnson / Pilar Winters | 2.8654 | -0.0090 | 2.8564 |
| 11 | 2026-08-06 | Win | 11-3 | Kim Johnson | Beth Arms / Wendy Bachman | 2.8564 | +0.0047 | 2.8611 |
| 12 | 2026-08-06 | Win | 11-6 | Beth Arms | Pilar Winters / Wendy Bachman | 2.8611 | +0.0035 | 2.8646 |
| 13 | 2026-08-13 | Loss | 9-11 | Julee Johanson | Dawn Mead / Mary LaFrancois | 2.8646 | -0.0099 | 2.8547 |
| 14 | 2026-08-13 | Win | 11-3 | Joy McCormick | Dawn Mead / Julee Johanson | 2.8547 | +0.0167 | 2.8714 |
| 15 | 2026-08-13 | Win | 11-6 | Mary LaFrancois | Joy McCormick / Julee Johanson | 2.8714 | +0.0058 | 2.8772 |
| 16 | 2026-08-13 | Loss | 7-11 | Dawn Mead | Joy McCormick / Mary LaFrancois | 2.8772 | -0.0151 | 2.8621 |
| 17 | 2026-08-20 | Win | 11-3 | Nancy Krau | Cathy Shaw / Barbara Amato | 2.8621 | +0.0084 | 2.8705 |
| 18 | 2026-08-20 | Loss | 7-11 | Fern S Reisinger | Nancy Krau / Cathy Shaw | 2.8705 | -0.0065 | 2.8640 |
| 19 | 2026-08-20 | Loss | 9-11 | Cathy Shaw | Barbara Amato / Fern S Reisinger | 2.8640 | -0.0140 | 2.8500 |
| 20 | 2026-08-20 | Win | 11-10 | Barbara Amato | Nancy Krau / Fern S Reisinger | 2.8500 | +0.0086 | 2.8586 |
| 21 | 2026-08-27 | Loss | 10-11 | Carol Spano | Barbara Amato / Beth Arms | 2.8586 | -0.0058 | 2.8528 |
| 22 | 2026-08-27 | Win | 11-4 | Beth Arms | Barbara Amato / Yvonne Delacruz | 2.8528 | +0.0072 | 2.8600 |
| 23 | 2026-08-27 | Win | 11-2 | Barbara Amato | Carol Spano / Yvonne Delacruz | 2.8600 | +0.0048 | 2.8648 |
| 24 | 2026-08-27 | Loss | 7-11 | Yvonne Delacruz | Carol Spano / Beth Arms | 2.8648 | -0.0124 | 2.8524 |
| 25 | 2026-09-03 | Loss | 8-11 | Joy McCormick | Renae Kray / Julia Krause | 2.8524 | -0.0027 | 2.8497 |
| 26 | 2026-09-03 | Win | 11-4 | Julia Krause | Joy McCormick / Nancy Krau | 2.8497 | +0.0053 | 2.8550 |
| 27 | 2026-09-03 | Loss | 10-11 | Nancy Krau | Renae Kray / Joy McCormick | 2.8550 | -0.0125 | 2.8425 |
| 28 | 2026-09-03 | Loss | 5-11 | Renae Kray | Julia Krause / Nancy Krau | 2.8425 | -0.0092 | 2.8333 |
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 | 2.8665 | 2.9748 | -0.1083 | +0.0130 |
| 2 | 2.7737 | 2.8600 | +0.0863 | -0.0076 |
| 3 | 2.8733 | 2.8662 | -0.0071 | -0.0102 |
| 4 | 2.9785 | 2.7685 | -0.2099 | -0.0154 |
| 5 | 2.8575 | 2.7506 | -0.1069 | -0.0130 |
| 6 | 2.7620 | 2.7398 | +0.0222 | +0.0094 |
| 7 | 2.8437 | 2.7324 | +0.1113 | +0.0069 |
| 8 | 2.7415 | 2.7729 | -0.0313 | +0.0109 |
| 9 | 2.7053 | 2.8674 | +0.1621 | -0.0056 |
| 10 | 2.6719 | 2.7066 | +0.0347 | -0.0090 |
| 11 | 2.8687 | 2.6659 | +0.2028 | +0.0047 |
| 12 | 2.8613 | 2.5940 | +0.2672 | +0.0035 |
| 13 | 2.8968 | 2.9019 | +0.0051 | -0.0099 |
| 14 | 2.6818 | 2.9606 | -0.2788 | +0.0167 |
| 15 | 2.8773 | 2.7206 | +0.1567 | +0.0058 |
| 16 | 2.8971 | 2.7021 | -0.1950 | -0.0151 |
| 17 | 2.8706 | 2.8142 | +0.0564 | +0.0084 |
| 18 | 2.7482 | 2.8758 | +0.1276 | -0.0065 |
| 19 | 2.8654 | 2.7184 | -0.1470 | -0.0140 |
| 20 | 2.8152 | 2.7664 | +0.0488 | +0.0086 |
| 21 | 2.6683 | 2.8225 | +0.1542 | -0.0058 |
| 22 | 2.8550 | 2.7568 | +0.0981 | +0.0072 |
| 23 | 2.8233 | 2.6241 | +0.1991 | +0.0048 |
| 24 | 2.7542 | 2.6688 | -0.0854 | -0.0124 |
| 25 | 2.7183 | 3.0408 | +0.3224 | -0.0027 |
| 26 | 2.9076 | 2.7323 | +0.1753 | +0.0053 |
| 27 | 2.8641 | 2.7765 | -0.0876 | -0.0125 |
| 28 | 2.9027 | 2.9297 | +0.0270 | -0.0092 |
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 -0.1083 -> computed delta +0.0130; 2.8770 +0.0130 = 2.8900