Initial VIPR
3.3110
Registry seed
Current VIPR
3.2294
After latest rated game
Net Movement
-0.0816
Current minus initial
Record
7-13
35% win rate · 20 rated games
Storyline
Marcie Stern entered VIPR with an initial registry rating of 3.3110. Across 20 rated doubles games, the player went 7-13 and moved -0.0816, finishing at 3.2294.
Why It Moved
AI-generated explanation: The 7-13 record produced +0.0522 from wins and -0.1338 from losses, for a net move of -0.0816. The biggest single-game impact was -0.0143 against Donna Siskind as partner and Judith Lee / Debbie Fischer as opponents. In game #8 on 2026-07-09, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.3274 vs opponent team 3.1670.
Partner Chemistry
Partnership patterns are starting to emerge.
Marcie's most common partner signals so far: Debbie Fischer (1-2, 33%), Judy Arlington (1-2, 33%), Connie Nowell (1-1, 50%), Judith Lee (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
Marcie has faced Debbie Fischer 7 times - record: 2-5. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 0-4 | 3.3110 | 3.2714 | -0.0396 |
| 2026-07-09 | 1-3 | 3.2714 | 3.2484 | -0.0230 |
| 2026-07-16 | 3-1 | 3.2484 | 3.2585 | +0.0101 |
| 2026-07-23 | 2-2 | 3.2585 | 3.2564 | -0.0021 |
| 2026-08-06 | 1-3 | 3.2564 | 3.2294 | -0.0270 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 2-11 | Amy Huckaby | Carolyn Roan / Judy Arlington | 3.3110 | -0.0083 | 3.3027 |
| 2 | 2026-07-02 | Loss | 2-11 | Nickie Gader | Carolyn Roan / Amy Huckaby | 3.3027 | -0.0112 | 3.2915 |
| 3 | 2026-07-02 | Loss | 4-11 | Judy Arlington | Nickie Gader / Amy Huckaby | 3.2915 | -0.0099 | 3.2816 |
| 4 | 2026-07-02 | Loss | 10-11 | Carolyn Roan | Nickie Gader / Judy Arlington | 3.2816 | -0.0102 | 3.2714 |
| 5 | 2026-07-09 | Loss | 9-11 | Deborah Ahart | Donna Siskind / Debbie Fischer | 3.2714 | -0.0093 | 3.2621 |
| 6 | 2026-07-09 | Win | 11-5 | Judith Lee | Donna Siskind / Deborah Ahart | 3.2621 | +0.0102 | 3.2723 |
| 7 | 2026-07-09 | Loss | 5-11 | Debbie Fischer | Judith Lee / Deborah Ahart | 3.2723 | -0.0096 | 3.2627 |
| 8 | 2026-07-09 | Loss | 8-11 | Donna Siskind | Judith Lee / Debbie Fischer | 3.2627 | -0.0143 | 3.2484 |
| 9 | 2026-07-16 | Win | 11-10 | Debbie Fischer | Shawn Spaulding / Rose Hoffmann | 3.2484 | +0.0075 | 3.2559 |
| 10 | 2026-07-16 | Win | 11-3 | Rose Hoffmann | Shawn Spaulding / ANN DREWEK | 3.2559 | +0.0023 | 3.2582 |
| 11 | 2026-07-16 | Win | 11-3 | Shawn Spaulding | Debbie Fischer / ANN DREWEK | 3.2582 | +0.0040 | 3.2622 |
| 12 | 2026-07-16 | Loss | 9-11 | ANN DREWEK | Debbie Fischer / Rose Hoffmann | 3.2622 | -0.0037 | 3.2585 |
| 13 | 2026-07-23 | Loss | 1-11 | Brenda Leardi | Judy Arlington / Sally Naumann | 3.2585 | -0.0096 | 3.2489 |
| 14 | 2026-07-23 | Win | 11-6 | Sally Naumann | Judy Arlington / Brenda Leardi | 3.2489 | +0.0100 | 3.2589 |
| 15 | 2026-07-23 | Win | 11-8 | Judy Arlington | Sally Naumann / Brenda Leardi | 3.2589 | +0.0090 | 3.2679 |
| 16 | 2026-07-23 | Loss | 5-11 | Judy Arlington | Sally Naumann / Brenda Leardi | 3.2679 | -0.0115 | 3.2564 |
| 17 | 2026-08-06 | Loss | 5-11 | Debbie Fischer | Renae Kray / Connie Nowell | 3.2564 | -0.0139 | 3.2425 |
| 18 | 2026-08-06 | Win | 11-8 | Connie Nowell | Debbie Fischer / Renae Kray | 3.2425 | +0.0092 | 3.2517 |
| 19 | 2026-08-06 | Loss | 5-11 | Renae Kray | Debbie Fischer / Connie Nowell | 3.2517 | -0.0108 | 3.2409 |
| 20 | 2026-08-06 | Loss | 7-11 | Connie Nowell | Debbie Fischer / Renae Kray | 3.2409 | -0.0115 | 3.2294 |
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 | 3.2655 | 3.3244 | +0.0589 | -0.0083 |
| 2 | 3.3364 | 3.2952 | -0.0412 | -0.0112 |
| 3 | 3.2914 | 3.2954 | +0.0040 | -0.0099 |
| 4 | 3.3293 | 3.3211 | -0.0082 | -0.0102 |
| 5 | 3.2037 | 3.2297 | +0.0260 | -0.0093 |
| 6 | 3.2546 | 3.2624 | -0.0078 | +0.0102 |
| 7 | 3.1741 | 3.1871 | +0.0130 | -0.0096 |
| 8 | 3.3274 | 3.1670 | -0.1604 | -0.0143 |
| 9 | 3.1702 | 3.0797 | +0.0905 | +0.0075 |
| 10 | 3.1854 | 2.8286 | +0.3568 | +0.0023 |
| 11 | 3.1015 | 2.8593 | +0.2422 | +0.0040 |
| 12 | 2.8887 | 3.1472 | +0.2586 | -0.0037 |
| 13 | 3.2456 | 3.2595 | +0.0139 | -0.0096 |
| 14 | 3.2508 | 3.2516 | -0.0008 | +0.0100 |
| 15 | 3.2686 | 3.2339 | +0.0347 | +0.0090 |
| 16 | 3.2776 | 3.2249 | -0.0527 | -0.0115 |
| 17 | 3.1828 | 3.0387 | -0.1442 | -0.0139 |
| 18 | 3.1082 | 3.0811 | +0.0272 | +0.0092 |
| 19 | 3.1089 | 3.0804 | -0.0285 | -0.0108 |
| 20 | 3.1218 | 3.0675 | -0.0542 | -0.0115 |
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 +0.0589 -> computed delta -0.0083; 3.3110 -0.0083 = 3.3027