Initial VIPR
3.4230
Registry seed
Current VIPR
3.4027
After latest rated game
Net Movement
-0.0203
Current minus initial
Record
2-4
33% win rate · 6 rated games
Storyline
Kirstin Burri entered VIPR with an initial registry rating of 3.4230. Across 6 rated doubles games, the player went 2-4 and moved -0.0203, finishing at 3.4027.
Why It Moved
AI-generated explanation: The 2-4 record produced +0.0212 from wins and -0.0415 from losses, for a net move of -0.0203. The biggest single-game impact was -0.0160 against Susanne Close as partner and Kerry Ferrero / Nancy Krau as opponents. In game #2 on 2026-10-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.2144 vs opponent team 2.9729.
Partner Chemistry
Partnership patterns are starting to emerge.
Kirstin's most common partner signals so far: Phil Sciacca (1-1, 50%), Cookie Sciacca (0-2, 0%), Ally McHugh (1-0, 100%), Susanne Close (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Kirstin has faced Kerry Ferrero 3 times - record: 0-3. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-13 | 0-3 | 3.4230 | 3.3887 | -0.0343 |
| 2026-10-20 | 2-1 | 3.3887 | 3.4027 | +0.0140 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-13 Santiago Club - Team 1 vs Team 2 |
Loss | 11-21 | Phil Sciacca | Kerry Ferrero / Kevin Eisemon | 3.4230 | -0.0086 | 3.4144 |
| 2 | 2026-10-13 Santiago Club - Team 1 vs Team 2 |
Loss | 11-21 | Susanne Close | Kerry Ferrero / Nancy Krau | 3.4144 | -0.0160 | 3.3984 |
| 3 | 2026-10-13 Santiago Club - Team 1 vs Team 2 |
Loss | 18-21 | Cookie Sciacca | Sandy Zutter / Kerry Ferrero | 3.3984 | -0.0097 | 3.3887 |
| 4 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Win | 21-14 | Ally McHugh | Debbie Hellman / Debbie Gassman | 3.3887 | +0.0081 | 3.3968 |
| 5 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Loss | 17-21 | Cookie Sciacca | Barb O'Connor / Debbie Hellman | 3.3968 | -0.0072 | 3.3896 |
| 6 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Win | 21-19 | Phil Sciacca | Debbie Hellman / Bruce Ashley | 3.3896 | +0.0131 | 3.4027 |
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 | 3.2982 | 3.3485 | +0.0503 | -0.0086 |
| 2 | 3.2144 | 2.9729 | -0.2415 | -0.0160 |
| 3 | 3.3021 | 3.3133 | +0.0112 | -0.0097 |
| 4 | 3.3266 | 3.2598 | +0.0668 | +0.0081 |
| 5 | 3.2900 | 3.3881 | +0.0981 | -0.0072 |
| 6 | 3.2966 | 3.4093 | -0.1127 | +0.0131 |
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 +0.0503 -> computed delta -0.0086; 3.4230 -0.0086 = 3.4144