Initial VIPR
3.2700
Registry seed
Current VIPR
3.2678
After latest rated game
Net Movement
-0.0022
Current minus initial
Record
4-4
50% win rate · 8 rated games
Storyline
Sally Naumann entered VIPR with an initial registry rating of 3.2700. Across 8 rated doubles games, the player went 4-4 and moved -0.0022, finishing at 3.2678.
Why It Moved
AI-generated explanation: The 4-4 record produced +0.0401 from wins and -0.0423 from losses, for a net move of -0.0022. The biggest single-game impact was -0.0141 against Kathy Battle as partner and Debbie Fischer / Rose Hoffmann as opponents. In game #4 on 2026-07-02, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.2731 vs opponent team 3.1203.
Partner Chemistry
Partnership patterns are starting to emerge.
Sally's most common partner signals so far: Brenda Leardi (1-1, 50%), Judy Arlington (1-0, 100%), Marcie Stern (1-0, 100%), Rose Hoffmann (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
Sally has faced Judy Arlington 3 times - record: 2-1. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 1-3 | 3.2700 | 3.2457 | -0.0243 |
| 2026-07-23 | 3-1 | 3.2457 | 3.2678 | +0.0221 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 5-11 | Debbie Fischer | Kathy Battle / Deborah Ahart | 3.2700 | -0.0083 | 3.2617 |
| 2 | 2026-07-02 | Win | 11-6 | Rose Hoffmann | Deborah Ahart / Debbie Fischer | 3.2617 | +0.0090 | 3.2707 |
| 3 | 2026-07-02 | Loss | 6-11 | Deborah Ahart | Kathy Battle / Rose Hoffmann | 3.2707 | -0.0109 | 3.2598 |
| 4 | 2026-07-02 | Loss | 8-11 | Kathy Battle | Debbie Fischer / Rose Hoffmann | 3.2598 | -0.0141 | 3.2457 |
| 5 | 2026-07-23 | Win | 11-1 | Judy Arlington | Brenda Leardi / Marcie Stern | 3.2457 | +0.0096 | 3.2553 |
| 6 | 2026-07-23 | Win | 11-6 | Marcie Stern | Judy Arlington / Brenda Leardi | 3.2553 | +0.0100 | 3.2653 |
| 7 | 2026-07-23 | Loss | 8-11 | Brenda Leardi | Judy Arlington / Marcie Stern | 3.2653 | -0.0090 | 3.2563 |
| 8 | 2026-07-23 | Win | 11-5 | Brenda Leardi | Judy Arlington / Marcie Stern | 3.2563 | +0.0115 | 3.2678 |
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 | 3.1657 | 3.2269 | +0.0612 | -0.0083 |
| 2 | 3.1758 | 3.1420 | +0.0338 | +0.0090 |
| 3 | 3.2221 | 3.1916 | -0.0305 | -0.0109 |
| 4 | 3.2731 | 3.1203 | -0.1529 | -0.0141 |
| 5 | 3.2595 | 3.2456 | +0.0139 | +0.0096 |
| 6 | 3.2508 | 3.2516 | -0.0008 | +0.0100 |
| 7 | 3.2339 | 3.2686 | +0.0347 | -0.0090 |
| 8 | 3.2249 | 3.2776 | -0.0527 | +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 +0.0612 -> computed delta -0.0083; 3.2700 -0.0083 = 3.2617