Initial VIPR
3.8900
Registry seed
Current VIPR
3.8789
After latest rated game
Net Movement
-0.0111
Current minus initial
Record
7-9
44% win rate · 16 rated games
Storyline
Laura Marchisello entered VIPR with an initial registry rating of 3.8900. Across 16 rated doubles games, the player went 7-9 and moved -0.0111, finishing at 3.8789.
Why It Moved
AI-generated explanation: The 7-9 record produced +0.0587 from wins and -0.0698 from losses, for a net move of -0.0111. The biggest single-game impact was -0.0173 against Jolynne Colvin as partner and Jean Narod / Sharon McFarland as opponents. In game #7 on 2026-07-23, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.7403 vs opponent team 3.4169.
Partner Chemistry
Partnership patterns are starting to emerge.
Laura's most common partner signals so far: Carolyn Roan (2-0, 100%), Lori Mueller (1-1, 50%), Cheryl Jackson (0-2, 0%), Michele Blanchard (0-2, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Laura has faced Lori Mueller 6 times - record: 1-5. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-09 | 1-3 | 3.8900 | 3.8777 | -0.0123 |
| 2026-07-23 | 2-2 | 3.8777 | 3.8666 | -0.0111 |
| 2026-08-20 | 1-3 | 3.8666 | 3.8578 | -0.0088 |
| 2026-08-27 | 3-1 | 3.8578 | 3.8789 | +0.0211 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-09 | Loss | 8-11 | Michele Blanchard | Lori Mueller / Janna Armstrong | 3.8900 | -0.0016 | 3.8884 |
| 2 | 2026-07-09 | Win | 11-8 | Lori Mueller | Janna Armstrong / Michele Blanchard | 3.8884 | +0.0034 | 3.8918 |
| 3 | 2026-07-09 | Loss | 5-11 | Janna Armstrong | Lori Mueller / Michele Blanchard | 3.8918 | -0.0124 | 3.8794 |
| 4 | 2026-07-09 | Loss | 3-11 | Michele Blanchard | Lori Mueller / Janna Armstrong | 3.8794 | -0.0017 | 3.8777 |
| 5 | 2026-07-23 | Win | 11-1 | Erin DeFrates | Jolynne Colvin / Jean Narod | 3.8777 | +0.0038 | 3.8815 |
| 6 | 2026-07-23 | Win | 11-5 | Sharon McFarland | Erin DeFrates / Jolynne Colvin | 3.8815 | +0.0141 | 3.8956 |
| 7 | 2026-07-23 | Loss | 9-11 | Jolynne Colvin | Jean Narod / Sharon McFarland | 3.8956 | -0.0173 | 3.8783 |
| 8 | 2026-07-23 | Loss | 5-11 | Jean Narod | Erin DeFrates / Sharon McFarland | 3.8783 | -0.0117 | 3.8666 |
| 9 | 2026-08-20 | Loss | 3-11 | Cheryl Jackson | Lori Mueller / Eva Peters | 3.8666 | -0.0008 | 3.8658 |
| 10 | 2026-08-20 | Loss | 5-11 | Lori Mueller | Eva Peters / Cheryl Jackson | 3.8658 | -0.0148 | 3.8510 |
| 11 | 2026-08-20 | Win | 11-3 | Eva Peters | Lori Mueller / Cheryl Jackson | 3.8510 | +0.0076 | 3.8586 |
| 12 | 2026-08-20 | Loss | 7-11 | Cheryl Jackson | Lori Mueller / Eva Peters | 3.8586 | -0.0008 | 3.8578 |
| 13 | 2026-08-27 | Win | 11-2 | Lucille Gambescia | Sandy Zutter / Carolyn Roan | 3.8578 | +0.0016 | 3.8594 |
| 14 | 2026-08-27 | Win | 11-6 | Carolyn Roan | Lucille Gambescia / Sandy Zutter | 3.8594 | +0.0145 | 3.8739 |
| 15 | 2026-08-27 | Loss | 6-11 | Sandy Zutter | Lucille Gambescia / Carolyn Roan | 3.8739 | -0.0087 | 3.8652 |
| 16 | 2026-08-27 | Win | 11-2 | Carolyn Roan | Lucille Gambescia / Sandy Zutter | 3.8652 | +0.0137 | 3.8789 |
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 | 3.7126 | 4.1350 | +0.4224 | -0.0016 |
| 2 | 4.0298 | 3.7567 | +0.2730 | +0.0034 |
| 3 | 3.9355 | 3.8510 | -0.0846 | -0.0124 |
| 4 | 3.7146 | 4.1303 | +0.4157 | -0.0017 |
| 5 | 3.7573 | 3.5028 | +0.2545 | +0.0038 |
| 6 | 3.5444 | 3.6972 | -0.1529 | +0.0141 |
| 7 | 3.7403 | 3.4169 | -0.3234 | -0.0173 |
| 8 | 3.5722 | 3.5135 | -0.0587 | -0.0117 |
| 9 | 3.7255 | 4.2778 | +0.5523 | -0.0008 |
| 10 | 4.0194 | 3.8357 | -0.1837 | -0.0148 |
| 11 | 3.9709 | 3.8842 | +0.0867 | +0.0076 |
| 12 | 3.7276 | 4.2875 | +0.5600 | -0.0008 |
| 13 | 3.9590 | 3.5298 | +0.4291 | +0.0016 |
| 14 | 3.6072 | 3.7763 | -0.1691 | +0.0145 |
| 15 | 3.6694 | 3.7142 | +0.0448 | -0.0087 |
| 16 | 3.6252 | 3.7583 | -0.1332 | +0.0137 |
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 +0.4224 -> computed delta -0.0016; 3.8900 -0.0016 = 3.8884