Initial VIPR
2.0000
Registry seed
Current VIPR
1.9675
After latest rated game
Net Movement
-0.0325
Current minus initial
Record
6-13
32% win rate · 19 rated games
Storyline
Catherine Rozmiarek entered VIPR with an initial registry rating of 2.0000. Across 19 rated doubles games, the player went 6-13 and moved -0.0325, finishing at 1.9675.
Why It Moved
AI-generated explanation: The 6-13 record produced +0.0542 from wins and -0.0867 from losses, for a net move of -0.0325. The biggest single-game impact was -0.0110 against Bev Buescher as partner and Helen Burns / Cathy Loughridge as opponents. In game #17 on 2026-09-03, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 1.9764 vs opponent team 1.9412.
Partner Chemistry
Partnership patterns are starting to emerge.
Catherine's most common partner signals so far: Helen Burns (2-2, 50%), Cathy Loughridge (0-3, 0%), Peggy Salazar (2-0, 100%), Pamela Uriarte (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
Catherine has faced Helen Burns 6 times - record: 1-5. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 2-2 | 2.0000 | 2.0001 | +0.0001 |
| 2026-08-06 | 1-3 | 2.0001 | 1.9836 | -0.0165 |
| 2026-08-13 | 0-4 | 1.9836 | 1.9726 | -0.0110 |
| 2026-08-27 | 1-2 | 1.9726 | 1.9701 | -0.0025 |
| 2026-09-03 | 2-2 | 1.9701 | 1.9675 | -0.0026 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Win | 11-4 | Amy Fortier | melinda moreno / Pamela Uriarte | 2.0000 | +0.0100 | 2.0100 |
| 2 | 2026-07-02 | Loss | 5-11 | Pamela Uriarte | Amy Fortier / melinda moreno | 2.0100 | -0.0100 | 2.0000 |
| 3 | 2026-07-02 | Loss | 2-11 | melinda moreno | Amy Fortier / Pamela Uriarte | 2.0000 | -0.0102 | 1.9898 |
| 4 | 2026-07-02 | Win | 11-8 | Pamela Uriarte | Amy Fortier / melinda moreno | 1.9898 | +0.0103 | 2.0001 |
| 5 | 2026-08-06 | Loss | 2-11 | Helen Burns | Peggy Salazar / Cathy Loughridge | 2.0001 | -0.0109 | 1.9892 |
| 6 | 2026-08-06 | Loss | 4-11 | Christine Martin | Peggy Salazar / Helen Burns | 1.9892 | -0.0087 | 1.9805 |
| 7 | 2026-08-06 | Loss | 4-11 | Cathy Loughridge | Christine Martin / Helen Burns | 1.9805 | -0.0070 | 1.9735 |
| 8 | 2026-08-06 | Win | 11-10 | Peggy Salazar | Christine Martin / Cathy Loughridge | 1.9735 | +0.0101 | 1.9836 |
| 9 | 2026-08-13 | Loss | 3-11 | Missi Horton | Deborah Austin / Lori Stiegler | 1.9836 | -0.0016 | 1.9820 |
| 10 | 2026-08-13 | Loss | 3-11 | Cindy Halcomb | Lori Stiegler / Missi Horton | 1.9820 | -0.0032 | 1.9788 |
| 11 | 2026-08-13 | Loss | 5-11 | Lori Stiegler | Deborah Austin / Cindy Halcomb | 1.9788 | -0.0016 | 1.9772 |
| 12 | 2026-08-13 | Loss | 3-11 | Deborah Austin | Missi Horton / Cindy Halcomb | 1.9772 | -0.0046 | 1.9726 |
| 13 | 2026-08-27 | Loss | 6-11 | Helen Burns | Kelly Gallagher / Peggy Salazar | 1.9726 | -0.0065 | 1.9661 |
| 14 | 2026-08-27 | Win | 11-7 | Peggy Salazar | Helen Burns / Cathy Loughridge | 1.9661 | +0.0086 | 1.9747 |
| 15 | 2026-08-27 | Loss | 3-11 | Cathy Loughridge | Kelly Gallagher / Helen Burns | 1.9747 | -0.0046 | 1.9701 |
| 16 | 2026-09-03 | Loss | 4-11 | Cathy Loughridge | Helen Burns / Bev Buescher | 1.9701 | -0.0068 | 1.9633 |
| 17 | 2026-09-03 | Loss | 5-11 | Bev Buescher | Helen Burns / Cathy Loughridge | 1.9633 | -0.0110 | 1.9523 |
| 18 | 2026-09-03 | Win | 11-7 | Helen Burns | Bev Buescher / Cathy Loughridge | 1.9523 | +0.0078 | 1.9601 |
| 19 | 2026-09-03 | Win | 11-5 | Helen Burns | Bev Buescher / Cathy Loughridge | 1.9601 | +0.0074 | 1.9675 |
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 | 2.0000 | 2.0000 | +0.0000 | +0.0100 |
| 2 | 1.9960 | 1.9960 | +0.0000 | -0.0100 |
| 3 | 2.0000 | 1.9920 | -0.0080 | -0.0102 |
| 4 | 1.9899 | 2.0019 | -0.0120 | +0.0103 |
| 5 | 2.0240 | 1.9928 | -0.0312 | -0.0109 |
| 6 | 2.0258 | 2.0698 | +0.0440 | -0.0087 |
| 7 | 1.9761 | 2.0849 | +0.1088 | -0.0070 |
| 8 | 2.0058 | 2.0099 | -0.0041 | +0.0101 |
| 9 | 2.1093 | 2.5326 | +0.4233 | -0.0016 |
| 10 | 2.1244 | 2.4132 | +0.2888 | -0.0032 |
| 11 | 2.1187 | 2.5423 | +0.4236 | -0.0016 |
| 12 | 2.2094 | 2.4194 | +0.2100 | -0.0046 |
| 13 | 2.0069 | 2.1321 | +0.1251 | -0.0065 |
| 14 | 2.0051 | 1.9574 | +0.0477 | +0.0086 |
| 15 | 1.9143 | 2.1247 | +0.2104 | -0.0046 |
| 16 | 1.9097 | 2.0253 | +0.1156 | -0.0068 |
| 17 | 1.9764 | 1.9412 | -0.0352 | -0.0110 |
| 18 | 1.9972 | 1.9203 | +0.0769 | +0.0078 |
| 19 | 2.0050 | 1.9125 | +0.0925 | +0.0074 |
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 +0.0000 -> computed delta +0.0100; 2.0000 +0.0100 = 2.0100