Initial VIPR
2.9650
Registry seed
Current VIPR
2.9514
After latest rated game
Net Movement
-0.0136
Current minus initial
Record
10-10
50% win rate · 20 rated games
Storyline
Rose Kopja entered VIPR with an initial registry rating of 2.9650. Across 20 rated doubles games, the player went 10-10 and moved -0.0136, finishing at 2.9514.
Why It Moved
AI-generated explanation: The 10-10 record produced +0.0862 from wins and -0.0998 from losses, for a net move of -0.0136. The biggest single-game impact was -0.0173 against Kathi Lancaster as partner and Elena Gordon / Joy McCormick as opponents. In game #19 on 2026-08-27, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.0582 vs opponent team 2.7340.
Partner Chemistry
Partnership patterns are starting to emerge.
Rose's most common partner signals so far: Elena Gordon (2-3, 40%), Joy McCormick (0-2, 0%), Barbara Amato (1-0, 100%), Dana Gainer (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
Rose has faced Elena Gordon 8 times - record: 3-5. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 1-3 | 2.9650 | 2.9441 | -0.0209 |
| 2026-07-09 | 3-1 | 2.9441 | 2.9693 | +0.0252 |
| 2026-07-23 | 3-1 | 2.9693 | 2.9860 | +0.0167 |
| 2026-08-20 | 3-1 | 2.9860 | 3.0008 | +0.0148 |
| 2026-08-27 | 0-4 | 3.0008 | 2.9514 | -0.0494 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 7-11 | Elena Gordon | Dana Gainer / Dawn Mead | 2.9650 | -0.0109 | 2.9541 |
| 2 | 2026-07-02 | Loss | 5-11 | Nancy Krau | Dana Gainer / Elena Gordon | 2.9541 | -0.0085 | 2.9456 |
| 3 | 2026-07-02 | Loss | 4-11 | Dawn Mead | Nancy Krau / Elena Gordon | 2.9456 | -0.0107 | 2.9349 |
| 4 | 2026-07-02 | Win | 11-0 | Dana Gainer | Nancy Krau / Dawn Mead | 2.9349 | +0.0092 | 2.9441 |
| 5 | 2026-07-09 | Win | 11-4 | Elena Gordon | Ann Thiel / Tricia Gallagher | 2.9441 | +0.0113 | 2.9554 |
| 6 | 2026-07-09 | Win | 11-6 | Karen Scott | Ann Thiel / Elena Gordon | 2.9554 | +0.0104 | 2.9658 |
| 7 | 2026-07-09 | Win | 11-1 | Tricia Gallagher | Karen Scott / Elena Gordon | 2.9658 | +0.0112 | 2.9770 |
| 8 | 2026-07-09 | Loss | 2-11 | Ann Thiel | Karen Scott / Tricia Gallagher | 2.9770 | -0.0077 | 2.9693 |
| 9 | 2026-07-23 | Loss | 6-11 | Beth Arms | Elena Gordon / Jennifer A Hamm | 2.9693 | -0.0079 | 2.9614 |
| 10 | 2026-07-23 | Win | 11-5 | Barbara Amato | Jennifer A Hamm / Beth Arms | 2.9614 | +0.0126 | 2.9740 |
| 11 | 2026-07-23 | Win | 11-5 | Jennifer A Hamm | Elena Gordon / Barbara Amato | 2.9740 | +0.0068 | 2.9808 |
| 12 | 2026-07-23 | Win | 11-4 | Elena Gordon | Beth Arms / Barbara Amato | 2.9808 | +0.0052 | 2.9860 |
| 13 | 2026-08-20 | Win | 11-10 | Gayle Kiefer | Renae Kray / Joy McCormick | 2.9860 | +0.0040 | 2.9900 |
| 14 | 2026-08-20 | Loss | 8-11 | Joy McCormick | Gayle Kiefer / Mary LaFrancois | 2.9900 | -0.0047 | 2.9853 |
| 15 | 2026-08-20 | Win | 11-6 | Mary LaFrancois | Renae Kray / Gayle Kiefer | 2.9853 | +0.0123 | 2.9976 |
| 16 | 2026-08-20 | Win | 11-3 | Renae Kray | Joy McCormick / Mary LaFrancois | 2.9976 | +0.0032 | 3.0008 |
| 17 | 2026-08-27 | Loss | 7-11 | Elena Gordon | Joy McCormick / Kathi Lancaster | 3.0008 | -0.0151 | 2.9857 |
| 18 | 2026-08-27 | Loss | 6-11 | Joy McCormick | Elena Gordon / Kathi Lancaster | 2.9857 | -0.0028 | 2.9829 |
| 19 | 2026-08-27 | Loss | 7-11 | Kathi Lancaster | Elena Gordon / Joy McCormick | 2.9829 | -0.0173 | 2.9656 |
| 20 | 2026-08-27 | Loss | 9-11 | Elena Gordon | Joy McCormick / Kathi Lancaster | 2.9656 | -0.0142 | 2.9514 |
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 | 2.9785 | 2.9469 | -0.0316 | -0.0109 |
| 2 | 2.9169 | 2.9696 | +0.0526 | -0.0085 |
| 3 | 2.9499 | 2.9270 | -0.0229 | -0.0107 |
| 4 | 2.9440 | 2.9170 | +0.0271 | +0.0092 |
| 5 | 2.9692 | 3.0157 | -0.0465 | +0.0113 |
| 6 | 2.9824 | 2.9978 | -0.0154 | +0.0104 |
| 7 | 2.9945 | 3.0369 | -0.0424 | +0.0112 |
| 8 | 2.9718 | 3.0530 | +0.0811 | -0.0077 |
| 9 | 2.9199 | 2.9929 | +0.0730 | -0.0079 |
| 10 | 2.8299 | 2.9206 | -0.0908 | +0.0126 |
| 11 | 2.9751 | 2.8579 | +0.1172 | +0.0068 |
| 12 | 2.9922 | 2.8090 | +0.1832 | +0.0052 |
| 13 | 2.9939 | 2.7524 | +0.2415 | +0.0040 |
| 14 | 2.7378 | 2.9433 | +0.2055 | -0.0047 |
| 15 | 2.9406 | 3.0203 | -0.0798 | +0.0123 |
| 16 | 3.0036 | 2.7143 | +0.2893 | +0.0032 |
| 17 | 2.9935 | 2.7968 | -0.1968 | -0.0151 |
| 18 | 2.7383 | 3.0520 | +0.3138 | -0.0028 |
| 19 | 3.0582 | 2.7340 | -0.3242 | -0.0173 |
| 20 | 2.9745 | 2.8177 | -0.1569 | -0.0142 |
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 -0.0316 -> computed delta -0.0109; 2.9650 -0.0109 = 2.9541