Initial VIPR
3.2450
Registry seed
Current VIPR
3.2308
After latest rated game
Net Movement
-0.0142
Current minus initial
Record
10-6
62% win rate · 16 rated games
Storyline
Kathi Lancaster entered VIPR with an initial registry rating of 3.2450. Across 16 rated doubles games, the player went 10-6 and moved -0.0142, finishing at 3.2308.
Why It Moved
AI-generated explanation: The record was positive, but the rating dipped because the 10 wins added +0.0773 while the 6 loss(es) gave back -0.0915. The biggest single-game impact was -0.0173 against Rose Kopja as partner and Elena Gordon / Joy McCormick as opponents. In game #15 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.
Kathi's most common partner signals so far: Joy McCormick (3-0, 100%), Beth Arms (1-1, 50%), Barbara Amato (1-0, 100%), Carol Spano (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
Kathi has faced Beth Arms 4 times - record: 1-3. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 1-3 | 3.2450 | 3.2110 | -0.0340 |
| 2026-07-09 | 3-1 | 3.2110 | 3.2099 | -0.0011 |
| 2026-07-16 | 3-1 | 3.2099 | 3.2160 | +0.0061 |
| 2026-08-27 | 3-1 | 3.2160 | 3.2308 | +0.0148 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 7-11 | Deborah Austin | Debbie Chaffee / Beth Arms | 3.2450 | -0.0130 | 3.2320 |
| 2 | 2026-07-02 | Loss | 3-11 | Beth Arms | Deborah Austin / Barbara Amato | 3.2320 | -0.0158 | 3.2162 |
| 3 | 2026-07-02 | Win | 11-2 | Barbara Amato | Debbie Chaffee / Deborah Austin | 3.2162 | +0.0102 | 3.2264 |
| 4 | 2026-07-02 | Loss | 2-11 | Debbie Chaffee | Beth Arms / Barbara Amato | 3.2264 | -0.0154 | 3.2110 |
| 5 | 2026-07-09 | Loss | 10-11 | Jackie Huckins | Carol Spano / Joy McCormick | 3.2110 | -0.0167 | 3.1943 |
| 6 | 2026-07-09 | Win | 11-2 | Cynthia Speiran | Jackie Huckins / Carol Spano | 3.1943 | +0.0071 | 3.2014 |
| 7 | 2026-07-09 | Win | 11-2 | Carol Spano | Joy McCormick / Cynthia Speiran | 3.2014 | +0.0037 | 3.2051 |
| 8 | 2026-07-09 | Win | 11-1 | Joy McCormick | Jackie Huckins / Cynthia Speiran | 3.2051 | +0.0048 | 3.2099 |
| 9 | 2026-07-16 | Win | 11-10 | Beth Arms | Kim Johnson / Tammy Wilson | 3.2099 | +0.0047 | 3.2146 |
| 10 | 2026-07-16 | Win | 11-8 | Fern S Reisinger | Beth Arms / Kim Johnson | 3.2146 | +0.0113 | 3.2259 |
| 11 | 2026-07-16 | Win | 11-6 | Kim Johnson | Tammy Wilson / Fern S Reisinger | 3.2259 | +0.0034 | 3.2293 |
| 12 | 2026-07-16 | Loss | 4-11 | Tammy Wilson | Beth Arms / Fern S Reisinger | 3.2293 | -0.0133 | 3.2160 |
| 13 | 2026-08-27 | Win | 11-7 | Joy McCormick | Rose Kopja / Elena Gordon | 3.2160 | +0.0151 | 3.2311 |
| 14 | 2026-08-27 | Win | 11-6 | Elena Gordon | Rose Kopja / Joy McCormick | 3.2311 | +0.0028 | 3.2339 |
| 15 | 2026-08-27 | Loss | 7-11 | Rose Kopja | Elena Gordon / Joy McCormick | 3.2339 | -0.0173 | 3.2166 |
| 16 | 2026-08-27 | Win | 11-9 | Joy McCormick | Rose Kopja / Elena Gordon | 3.2166 | +0.0142 | 3.2308 |
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 | 2.9748 | 2.8665 | -0.1083 | -0.0130 |
| 2 | 2.9821 | 2.7494 | -0.2327 | -0.0158 |
| 3 | 2.8662 | 2.8733 | -0.0071 | +0.0102 |
| 4 | 2.9785 | 2.7685 | -0.2099 | -0.0154 |
| 5 | 2.8162 | 2.5347 | -0.2815 | -0.0167 |
| 6 | 2.7012 | 2.5972 | +0.1040 | +0.0071 |
| 7 | 2.7671 | 2.5066 | +0.2605 | +0.0037 |
| 8 | 2.7292 | 2.5288 | +0.2005 | +0.0048 |
| 9 | 2.9805 | 2.7764 | +0.2041 | +0.0047 |
| 10 | 2.8486 | 2.8926 | -0.0439 | +0.0113 |
| 11 | 2.9834 | 2.7101 | +0.2734 | +0.0034 |
| 12 | 2.8748 | 2.7554 | -0.1194 | -0.0133 |
| 13 | 2.7968 | 2.9935 | -0.1968 | +0.0151 |
| 14 | 3.0520 | 2.7383 | +0.3138 | +0.0028 |
| 15 | 3.0582 | 2.7340 | -0.3242 | -0.0173 |
| 16 | 2.8177 | 2.9745 | -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 -0.1083 -> computed delta -0.0130; 3.2450 -0.0130 = 3.2320