Initial VIPR
4.2020
Registry seed
Current VIPR
4.2592
After latest rated game
Net Movement
+0.0572
Current minus initial
Record
8-0
100% win rate · 8 rated games
Storyline
Eva Peters entered VIPR with an initial registry rating of 4.2020. Across 8 rated doubles games, the player went 8-0 and moved +0.0572, finishing at 4.2592.
Why It Moved
AI-generated explanation: The 8-0 record produced +0.0572 from wins and +0.0000 from losses, for a net move of +0.0572. The biggest single-game impact was +0.0148 against Cheryl Jackson as partner and Lori Mueller / Laura Marchisello as opponents. In game #6 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.
Eva's most common partner signals so far: Lori Mueller (2-0, 100%), Cheryl Jackson (1-0, 100%), Diana Fuleky (1-0, 100%), Janna Armstrong (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
Eva has faced Cheryl Jackson 3 times - record: 3-0. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 4-0 | 4.2020 | 4.2352 | +0.0332 |
| 2026-08-20 | 4-0 | 4.2352 | 4.2592 | +0.0240 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Win | 11-8 | Diana Fuleky | Tammy Quinn / Janna Armstrong | 4.2020 | +0.0079 | 4.2099 |
| 2 | 2026-07-02 | Win | 11-8 | Nancy OBrien | Diana Fuleky / Tammy Quinn | 4.2099 | +0.0126 | 4.2225 |
| 3 | 2026-07-02 | Win | 11-6 | Tammy Quinn | Janna Armstrong / Nancy OBrien | 4.2225 | +0.0057 | 4.2282 |
| 4 | 2026-07-02 | Win | 11-7 | Janna Armstrong | Diana Fuleky / Nancy OBrien | 4.2282 | +0.0070 | 4.2352 |
| 5 | 2026-08-20 | Win | 11-3 | Lori Mueller | Laura Marchisello / Cheryl Jackson | 4.2352 | +0.0008 | 4.2360 |
| 6 | 2026-08-20 | Win | 11-5 | Cheryl Jackson | Lori Mueller / Laura Marchisello | 4.2360 | +0.0148 | 4.2508 |
| 7 | 2026-08-20 | Win | 11-3 | Laura Marchisello | Lori Mueller / Cheryl Jackson | 4.2508 | +0.0076 | 4.2584 |
| 8 | 2026-08-20 | Win | 11-7 | Lori Mueller | Laura Marchisello / Cheryl Jackson | 4.2584 | +0.0008 | 4.2592 |
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 | 4.1439 | 4.0698 | +0.0741 | +0.0079 |
| 2 | 4.0119 | 4.1042 | -0.0924 | +0.0126 |
| 3 | 4.1280 | 3.9691 | +0.1589 | +0.0057 |
| 4 | 4.0911 | 3.9841 | +0.1070 | +0.0070 |
| 5 | 4.2778 | 3.7255 | +0.5523 | +0.0008 |
| 6 | 3.8357 | 4.0194 | -0.1837 | +0.0148 |
| 7 | 3.9709 | 3.8842 | +0.0867 | +0.0076 |
| 8 | 4.2875 | 3.7276 | +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 +0.0741 -> computed delta +0.0079; 4.2020 +0.0079 = 4.2099