Storyline
Carol Spano entered VIPR with an initial registry rating of 2.5490. Across 8 rated doubles games, the player went 5-3 and moved +0.0356, finishing at 2.5846.
Why It Moved
AI-generated explanation: The 5-3 record produced +0.0578 from wins and -0.0222 from losses, for a net move of +0.0356. The biggest single-game impact was +0.0167 against Joy McCormick as partner and Kathi Lancaster / Jackie Huckins as opponents. In game #5 on 2026-07-09, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.5347 vs opponent team 2.8162.
Partnership patterns are starting to emerge.
Carol's most common partner signals so far: Tammy Wilson (2-0, 100%), Jackie Huckins (0-2, 0%), Cynthia Speiran (1-0, 100%), Joy McCormick (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Carol has faced Jackie Huckins 4 times - record: 3-1. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 2-2 | 2.5490 | 2.5596 | +0.0106 |
| 2026-07-09 | 3-1 | 2.5596 | 2.5846 | +0.0250 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 7-11 | Cheryl Prochilo | Tammy Wilson / Jackie Huckins | 2.5490 | -0.0080 | 2.5410 |
| 2 | 2026-07-02 | Win | 11-7 | Tammy Wilson | Courtney Robinson / Cheryl Prochilo | 2.5410 | +0.0133 | 2.5543 |
| 3 | 2026-07-02 | Loss | 7-11 | Jackie Huckins | Courtney Robinson / Cheryl Prochilo | 2.5543 | -0.0071 | 2.5472 |
| 4 | 2026-07-02 | Win | 11-9 | Tammy Wilson | Courtney Robinson / Jackie Huckins | 2.5472 | +0.0124 | 2.5596 |
| 5 | 2026-07-09 | Win | 11-10 | Joy McCormick | Kathi Lancaster / Jackie Huckins | 2.5596 | +0.0167 | 2.5763 |
| 6 | 2026-07-09 | Win | 11-2 | Cynthia Speiran | Jackie Huckins / Joy McCormick | 2.5763 | +0.0117 | 2.5880 |
| 7 | 2026-07-09 | Loss | 2-11 | Jackie Huckins | Kathi Lancaster / Cynthia Speiran | 2.5880 | -0.0071 | 2.5809 |
| 8 | 2026-07-09 | Win | 11-2 | Kathi Lancaster | Joy McCormick / Cynthia Speiran | 2.5809 | +0.0037 | 2.5846 |
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 | 2.5953 | 2.6672 | +0.0719 | -0.0080 |
| 2 | 2.5873 | 2.7063 | -0.1189 | +0.0133 |
| 3 | 2.5880 | 2.6930 | +0.1050 | -0.0071 |
| 4 | 2.5957 | 2.6792 | -0.0835 | +0.0124 |
| 5 | 2.5347 | 2.8162 | -0.2815 | +0.0167 |
| 6 | 2.5076 | 2.5676 | -0.0599 | +0.0117 |
| 7 | 2.5972 | 2.7012 | +0.1040 | -0.0071 |
| 8 | 2.7671 | 2.5066 | +0.2605 | +0.0037 |
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 +0.0719 -> computed delta -0.0080; 2.5490 -0.0080 = 2.5410