Initial VIPR
2.9650
Registry seed
Current VIPR
3.0784
After latest rated game
Net Movement
+0.1134
Current minus initial
Record
25-15
62% win rate · 40 rated games
Storyline
Rosa Kopja entered VIPR with an initial registry rating of 2.9650. Across 40 rated doubles games, the player went 25-15 and moved +0.1134, finishing at 3.0784.
Why It Moved
AI-generated explanation: The 25-15 record produced +0.2474 from wins and -0.1340 from losses, for a net move of +0.1134. The biggest single-game impact was +0.0181 against Renae Kray as partner and Christine Ressler / Karen Kellam as opponents. In game #39 on 2026-10-29, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.0583 vs opponent team 3.4543.
Partner Chemistry
Partnership patterns are starting to emerge.
Rosa's most common partner signals so far: Elena Gordon (3-3, 50%), Renae Kray (3-1, 75%), Gayle Kiefer (2-1, 67%), Tricia Gallagher (2-1, 67%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Rosa has faced Elena Gordon 10 times - record: 5-5. 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 |
| 2026-09-10 | 2-2 | 2.9514 | 2.9559 | +0.0045 |
| 2026-09-24 | 4-0 | 2.9559 | 2.9939 | +0.0380 |
| 2026-10-15 | 3-1 | 2.9939 | 3.0181 | +0.0242 |
| 2026-10-22 | 2-2 | 3.0181 | 3.0256 | +0.0075 |
| 2026-10-29 | 4-0 | 3.0256 | 3.0784 | +0.0528 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 7-11 | Elena Gordon | Dana Gainer / Dawn Mead | 2.9650 | -0.0109 | 2.9541 |
| 2 | 2026-07-02 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 5-11 | Nancy Krau | Dana Gainer / Elena Gordon | 2.9541 | -0.0085 | 2.9456 |
| 3 | 2026-07-02 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 4-11 | Dawn Mead | Nancy Krau / Elena Gordon | 2.9456 | -0.0107 | 2.9349 |
| 4 | 2026-07-02 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-0 | Dana Gainer | Nancy Krau / Dawn Mead | 2.9349 | +0.0092 | 2.9441 |
| 5 | 2026-07-09 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-4 | Elena Gordon | Ann Thiel / Tricia Gallagher | 2.9441 | +0.0113 | 2.9554 |
| 6 | 2026-07-09 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-6 | Karen Scott | Ann Thiel / Elena Gordon | 2.9554 | +0.0104 | 2.9658 |
| 7 | 2026-07-09 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-1 | Tricia Gallagher | Karen Scott / Elena Gordon | 2.9658 | +0.0112 | 2.9770 |
| 8 | 2026-07-09 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 2-11 | Ann Thiel | Karen Scott / Tricia Gallagher | 2.9770 | -0.0077 | 2.9693 |
| 9 | 2026-07-23 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 6-11 | Beth Arms | Elena Gordon / Jennifer A Hamm | 2.9693 | -0.0079 | 2.9614 |
| 10 | 2026-07-23 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-5 | Barbara Amato | Jennifer A Hamm / Beth Arms | 2.9614 | +0.0126 | 2.9740 |
| 11 | 2026-07-23 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-5 | Jennifer A Hamm | Elena Gordon / Barbara Amato | 2.9740 | +0.0068 | 2.9808 |
| 12 | 2026-07-23 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-4 | Elena Gordon | Beth Arms / Barbara Amato | 2.9808 | +0.0052 | 2.9860 |
| 13 | 2026-08-20 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-10 | Gayle Kiefer | Renae Kray / Joy McCormick | 2.9860 | +0.0040 | 2.9900 |
| 14 | 2026-08-20 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 8-11 | Joy McCormick | Gayle Kiefer / Mary LaFrancois | 2.9900 | -0.0047 | 2.9853 |
| 15 | 2026-08-20 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-6 | Mary LaFrancois | Renae Kray / Gayle Kiefer | 2.9853 | +0.0123 | 2.9976 |
| 16 | 2026-08-20 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-3 | Renae Kray | Joy McCormick / Mary LaFrancois | 2.9976 | +0.0032 | 3.0008 |
| 17 | 2026-08-27 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 7-11 | Elena Gordon | Joy McCormick / Kathi Lancaster | 3.0008 | -0.0151 | 2.9857 |
| 18 | 2026-08-27 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 6-11 | Joy McCormick | Elena Gordon / Kathi Lancaster | 2.9857 | -0.0028 | 2.9829 |
| 19 | 2026-08-27 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 7-11 | Kathi Lancaster | Elena Gordon / Joy McCormick | 2.9829 | -0.0173 | 2.9656 |
| 20 | 2026-08-27 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 9-11 | Elena Gordon | Joy McCormick / Kathi Lancaster | 2.9656 | -0.0142 | 2.9514 |
| 21 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 8-11 | Gayle Kiefer | Renae Kray / Tricia Gallagher | 2.9514 | -0.0078 | 2.9436 |
| 22 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-3 | Tricia Gallagher | Renae Kray / Gayle Kiefer | 2.9436 | +0.0108 | 2.9544 |
| 23 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-10 | Renae Kray | Tricia Gallagher / Gayle Kiefer | 2.9544 | +0.0111 | 2.9655 |
| 24 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 8-11 | Renae Kray | Tricia Gallagher / Gayle Kiefer | 2.9655 | -0.0096 | 2.9559 |
| 25 | 2026-09-24 Thursday Ladies Ladder League - Summer 2026 |
Win | 11-10 | Joy McCormick | Gayle Kiefer / Elena Gordon | 2.9559 | +0.0148 | 2.9707 |
| 26 | 2026-09-24 Thursday Ladies Ladder League - Summer 2026 |
Win | 11-8 | Elena Gordon | Gayle Kiefer / Dino Champagne | 2.9707 | +0.0116 | 2.9823 |
| 27 | 2026-09-24 Thursday Ladies Ladder League - Summer 2026 |
Win | 11-3 | Gayle Kiefer | Joy McCormick / Dino Champagne | 2.9823 | +0.0070 | 2.9893 |
| 28 | 2026-09-24 Thursday Ladies Ladder League - Summer 2026 |
Win | 11-6 | Dino Champagne | Joy McCormick / Elena Gordon | 2.9893 | +0.0046 | 2.9939 |
| 29 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-1 | Karen Scott | Laurel Andonian / Tricia Gallagher | 2.9939 | +0.0117 | 3.0056 |
| 30 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Loss | 6-11 | Tricia Gallagher | Laurel Andonian / Karen Scott | 3.0056 | -0.0089 | 2.9967 |
| 31 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-8 | Laurel Andonian | Tricia Gallagher / Karen Scott | 2.9967 | +0.0110 | 3.0077 |
| 32 | 2026-10-15 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-7 | Laurel Andonian | Tricia Gallagher / Karen Scott | 3.0077 | +0.0104 | 3.0181 |
| 33 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-5 | Karen Kellam | Debbie Fischer / Karen Mercer | 3.0181 | +0.0064 | 3.0245 |
| 34 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 4-11 | Barbara J Kennedy | Debbie Fischer / Karen Kellam | 3.0245 | -0.0052 | 3.0193 |
| 35 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Loss | 7-11 | Karen Mercer | Barbara J Kennedy / Karen Kellam | 3.0193 | -0.0027 | 3.0166 |
| 36 | 2026-10-22 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-5 | Debbie Fischer | Barbara J Kennedy / Karen Mercer | 3.0166 | +0.0090 | 3.0256 |
| 37 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-9 | Karen Kellam | Debbie Fischer / Renae Kray | 3.0256 | +0.0085 | 3.0341 |
| 38 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-7 | Christine Ressler | Debbie Fischer / Karen Kellam | 3.0341 | +0.0133 | 3.0474 |
| 39 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-5 | Renae Kray | Christine Ressler / Karen Kellam | 3.0474 | +0.0181 | 3.0655 |
| 40 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-8 | Debbie Fischer | Christine Ressler / Renae Kray | 3.0655 | +0.0129 | 3.0784 |
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 |
| 21 | 2.9671 | 3.0439 | +0.0767 | -0.0078 |
| 22 | 2.9828 | 3.0099 | -0.0271 | +0.0108 |
| 23 | 2.9774 | 3.0152 | -0.0378 | +0.0111 |
| 24 | 2.9885 | 3.0041 | +0.0156 | -0.0096 |
| 25 | 2.7974 | 2.9772 | -0.1798 | +0.0148 |
| 26 | 2.9629 | 3.0194 | -0.0565 | +0.0116 |
| 27 | 2.9649 | 2.8586 | +0.1062 | +0.0070 |
| 28 | 3.0234 | 2.8136 | +0.2098 | +0.0046 |
| 29 | 3.0093 | 3.0705 | -0.0613 | +0.0117 |
| 30 | 3.0213 | 3.0582 | +0.0370 | -0.0089 |
| 31 | 3.0188 | 3.0540 | -0.0352 | +0.0110 |
| 32 | 3.0297 | 3.0430 | -0.0132 | +0.0104 |
| 33 | 3.1551 | 3.0243 | +0.1308 | +0.0064 |
| 34 | 3.0820 | 3.2641 | +0.1821 | -0.0052 |
| 35 | 2.9724 | 3.2935 | +0.3211 | -0.0027 |
| 36 | 3.0645 | 3.0288 | +0.0357 | +0.0090 |
| 37 | 3.1681 | 3.1168 | +0.0514 | +0.0085 |
| 38 | 3.1508 | 3.2683 | -0.1175 | +0.0133 |
| 39 | 3.0583 | 3.4543 | -0.3959 | +0.0181 |
| 40 | 3.0914 | 3.1969 | -0.1055 | +0.0129 |
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