Initial VIPR
3.3420
Registry seed
Current VIPR
3.3400
After latest rated game
Net Movement
-0.0020
Current minus initial
Record
2-2
50% win rate · 4 rated games
Storyline
Sheryl Couch entered VIPR with an initial registry rating of 3.3420. Across 4 rated doubles games, the player went 2-2 and moved -0.0020, finishing at 3.3400.
Why It Moved
AI-generated explanation: The 2-2 record produced +0.0181 from wins and -0.0201 from losses, for a net move of -0.0020. The biggest single-game impact was -0.0108 against Lori Pasbrig as partner and Sally Naumann / Kelly Evers as opponents. In game #2 on 2026-10-29, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.3025 vs opponent team 3.2748.
Partner Chemistry
Partnership patterns are starting to emerge.
Sheryl's most common partner signals so far: Kelly Evers (1-0, 100%), Stephanie Chen (1-0, 100%), Lori Pasbrig (0-1, 0%), Sally Naumann (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Streak
Sheryl is currently on a 1-game winning streak in rated VIPR games.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-29 | 2-2 | 3.3420 | 3.3400 | -0.0020 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-0 | Kelly Evers | Stephanie Chen / Sally Naumann | 3.3420 | +0.0100 | 3.3520 |
| 2 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 9-11 | Lori Pasbrig | Sally Naumann / Kelly Evers | 3.3520 | -0.0108 | 3.3412 |
| 3 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Loss | 5-11 | Sally Naumann | Stephanie Chen / Lori Pasbrig | 3.3412 | -0.0093 | 3.3319 |
| 4 | 2026-10-29 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-5 | Stephanie Chen | Kelly Evers / Lori Pasbrig | 3.3319 | +0.0081 | 3.3400 |
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 | 3.3157 | 3.3142 | +0.0014 | +0.0100 |
| 2 | 3.3025 | 3.2748 | -0.0277 | -0.0108 |
| 3 | 3.2904 | 3.3131 | +0.0228 | -0.0093 |
| 4 | 3.3589 | 3.2934 | +0.0655 | +0.0081 |
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 +0.0014 -> computed delta +0.0100; 3.3420 +0.0100 = 3.3520