Initial VIPR
3.6650
Registry seed
Current VIPR
3.6706
After latest rated game
Net Movement
+0.0056
Current minus initial
Record
1-3
25% win rate · 4 rated games
Storyline
Cheryl Jackson entered VIPR with an initial registry rating of 3.6650. Across 4 rated doubles games, the player went 1-3 and moved +0.0056, finishing at 3.6706.
Why It Moved
AI-generated explanation: The record was below .500, but the rating rose because the 1 win(s) added +0.0148 against stronger situations while the 3 losses cost -0.0092. The biggest single-game impact was +0.0148 against Eva Peters as partner and Lori Mueller / Laura Marchisello as opponents. In game #2 on 2026-08-20, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.8357 vs opponent team 4.0194.
Partner Chemistry
Partnership patterns are starting to emerge.
Cheryl's most common partner signals so far: Laura Marchisello (0-2, 0%), Eva Peters (1-0, 100%), Lori Mueller (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
Cheryl has faced Eva Peters 3 times - record: 0-3. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-08-20 | 1-3 | 3.6650 | 3.6706 | +0.0056 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-08-20 | Loss | 3-11 | Laura Marchisello | Lori Mueller / Eva Peters | 3.6650 | -0.0008 | 3.6642 |
| 2 | 2026-08-20 | Win | 11-5 | Eva Peters | Lori Mueller / Laura Marchisello | 3.6642 | +0.0148 | 3.6790 |
| 3 | 2026-08-20 | Loss | 3-11 | Lori Mueller | Eva Peters / Laura Marchisello | 3.6790 | -0.0076 | 3.6714 |
| 4 | 2026-08-20 | Loss | 7-11 | Laura Marchisello | Lori Mueller / Eva Peters | 3.6714 | -0.0008 | 3.6706 |
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 | 3.7255 | 4.2778 | +0.5523 | -0.0008 |
| 2 | 3.8357 | 4.0194 | -0.1837 | +0.0148 |
| 3 | 3.8842 | 3.9709 | +0.0867 | -0.0076 |
| 4 | 3.7276 | 4.2875 | +0.5600 | -0.0008 |
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 +0.5523 -> computed delta -0.0008; 3.6650 -0.0008 = 3.6642