Initial VIPR
2.6990
Registry seed
Current VIPR
2.7096
After latest rated game
Net Movement
+0.0106
Current minus initial
Record
4-4
50% win rate · 8 rated games
Storyline
Tammy Wilson entered VIPR with an initial registry rating of 2.6990. Across 8 rated doubles games, the player went 4-4 and moved +0.0106, finishing at 2.7096.
Why It Moved
AI-generated explanation: The 4-4 record produced +0.0435 from wins and -0.0329 from losses, for a net move of +0.0106. The biggest single-game impact was +0.0133 against Carol Spano as partner and Courtney Robinson / Cheryl Prochilo as opponents. In game #3 on 2026-07-02, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.5873 vs opponent team 2.7063.
Partner Chemistry
Partnership patterns are starting to emerge.
Tammy's most common partner signals so far: Carol Spano (2-0, 100%), Beth Arms (1-0, 100%), Jackie Huckins (1-0, 100%), Courtney Robinson (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Tammy has faced Cheryl Prochilo 3 times - record: 2-1. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 3-1 | 2.6990 | 2.7212 | +0.0222 |
| 2026-07-16 | 1-3 | 2.7212 | 2.7096 | -0.0116 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 8-11 | Courtney Robinson | Cheryl Prochilo / Jackie Huckins | 2.6990 | -0.0115 | 2.6875 |
| 2 | 2026-07-02 | Win | 11-7 | Jackie Huckins | Cheryl Prochilo / Carol Spano | 2.6875 | +0.0080 | 2.6955 |
| 3 | 2026-07-02 | Win | 11-7 | Carol Spano | Courtney Robinson / Cheryl Prochilo | 2.6955 | +0.0133 | 2.7088 |
| 4 | 2026-07-02 | Win | 11-9 | Carol Spano | Courtney Robinson / Jackie Huckins | 2.7088 | +0.0124 | 2.7212 |
| 5 | 2026-07-16 | Loss | 10-11 | Kim Johnson | Kathi Lancaster / Beth Arms | 2.7212 | -0.0047 | 2.7165 |
| 6 | 2026-07-16 | Win | 11-5 | Beth Arms | Kim Johnson / Fern S Reisinger | 2.7165 | +0.0098 | 2.7263 |
| 7 | 2026-07-16 | Loss | 6-11 | Fern S Reisinger | Kathi Lancaster / Kim Johnson | 2.7263 | -0.0034 | 2.7229 |
| 8 | 2026-07-16 | Loss | 4-11 | Kathi Lancaster | Beth Arms / Fern S Reisinger | 2.7229 | -0.0133 | 2.7096 |
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 | 2.7122 | 2.6605 | -0.0517 | -0.0115 |
| 2 | 2.6672 | 2.5953 | +0.0719 | +0.0080 |
| 3 | 2.5873 | 2.7063 | -0.1189 | +0.0133 |
| 4 | 2.5957 | 2.6792 | -0.0835 | +0.0124 |
| 5 | 2.7764 | 2.9805 | +0.2041 | -0.0047 |
| 6 | 2.7676 | 2.7613 | +0.0063 | +0.0098 |
| 7 | 2.7101 | 2.9834 | +0.2734 | -0.0034 |
| 8 | 2.8748 | 2.7554 | -0.1194 | -0.0133 |
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 -0.0517 -> computed delta -0.0115; 2.6990 -0.0115 = 2.6875