Initial VIPR
3.1900
Registry seed
Current VIPR
3.2087
After latest rated game
Net Movement
+0.0187
Current minus initial
Record
3-3
50% win rate · 6 rated games
Storyline
Kerry Ferrero entered VIPR with an initial registry rating of 3.1900. Across 6 rated doubles games, the player went 3-3 and moved +0.0187, finishing at 3.2087.
Why It Moved
AI-generated explanation: The 3-3 record produced +0.0343 from wins and -0.0156 from losses, for a net move of +0.0187. The biggest single-game impact was +0.0160 against Nancy Krau as partner and Kirstin Burri / Susanne Close as opponents. In game #2 on 2026-10-13, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.9729 vs opponent team 3.2144.
Partner Chemistry
Partnership patterns are starting to emerge.
Kerry's most common partner signals so far: Kevin Eisemon (1-1, 50%), Sandy Zutter (1-1, 50%), Nancy Krau (1-0, 100%), Beth Ely (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
Kerry has faced Alejandra Bussey 3 times - record: 0-3. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-13 | 3-0 | 3.1900 | 3.2243 | +0.0343 |
| 2026-10-20 | 0-3 | 3.2243 | 3.2087 | -0.0156 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-13 Santiago Club - Team 1 vs Team 2 |
Win | 21-11 | Kevin Eisemon | Kirstin Burri / Phil Sciacca | 3.1900 | +0.0086 | 3.1986 |
| 2 | 2026-10-13 Santiago Club - Team 1 vs Team 2 |
Win | 21-11 | Nancy Krau | Kirstin Burri / Susanne Close | 3.1986 | +0.0160 | 3.2146 |
| 3 | 2026-10-13 Santiago Club - Team 1 vs Team 2 |
Win | 21-18 | Sandy Zutter | Cookie Sciacca / Kirstin Burri | 3.2146 | +0.0097 | 3.2243 |
| 4 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 16-21 | Beth Ely | Alejandra Bussey / Debra Vena | 3.2243 | -0.0076 | 3.2167 |
| 5 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 10-21 | Sandy Zutter | Erin DeFrates / Alejandra Bussey | 3.2167 | -0.0034 | 3.2133 |
| 6 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 18-21 | Kevin Eisemon | Alejandra Bussey / James Peavley | 3.2133 | -0.0046 | 3.2087 |
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 | 3.3485 | 3.2982 | +0.0503 | +0.0086 |
| 2 | 2.9729 | 3.2144 | -0.2415 | +0.0160 |
| 3 | 3.3133 | 3.3021 | +0.0112 | +0.0097 |
| 4 | 3.2518 | 3.3363 | +0.0845 | -0.0076 |
| 5 | 3.3106 | 3.5869 | +0.2764 | -0.0034 |
| 6 | 3.3669 | 3.5775 | +0.2106 | -0.0046 |
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; 3.1900 +0.0086 = 3.1986