Storyline
Courtney Robinson entered VIPR with an initial registry rating of 2.7430. Across 4 rated doubles games, the player went 1-3 and moved -0.0301, finishing at 2.7129.
Why It Moved
AI-generated explanation: The 1-3 record produced +0.0071 from wins and -0.0372 from losses, for a net move of -0.0301. The biggest single-game impact was -0.0133 against Cheryl Prochilo as partner and Tammy Wilson / Carol Spano as opponents. In game #2 on 2026-07-02, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.7063 vs opponent team 2.5873.
Partnership patterns are starting to emerge.
Courtney's most common partner signals so far: Cheryl Prochilo (1-1, 50%), Jackie Huckins (0-1, 0%), Tammy Wilson (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Courtney has faced Carol Spano 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 1-3 | 2.7430 | 2.7129 | -0.0301 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 8-11 | Tammy Wilson | Cheryl Prochilo / Jackie Huckins | 2.7430 | -0.0115 | 2.7315 |
| 2 | 2026-07-02 | Loss | 7-11 | Cheryl Prochilo | Tammy Wilson / Carol Spano | 2.7315 | -0.0133 | 2.7182 |
| 3 | 2026-07-02 | Win | 11-7 | Cheryl Prochilo | Jackie Huckins / Carol Spano | 2.7182 | +0.0071 | 2.7253 |
| 4 | 2026-07-02 | Loss | 9-11 | Jackie Huckins | Tammy Wilson / Carol Spano | 2.7253 | -0.0124 | 2.7129 |
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 | 2.7063 | 2.5873 | -0.1189 | -0.0133 |
| 3 | 2.6930 | 2.5880 | +0.1050 | +0.0071 |
| 4 | 2.6792 | 2.5957 | -0.0835 | -0.0124 |
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; 2.7430 -0.0115 = 2.7315