Initial VIPR
3.7080
Registry seed
Current VIPR
3.6591
After latest rated game
Net Movement
-0.0489
Current minus initial
Record
3-5
38% win rate · 8 rated games
Storyline
James Peavley entered VIPR with an initial registry rating of 3.7080. Across 8 rated doubles games, the player went 3-5 and moved -0.0489, finishing at 3.6591.
Why It Moved
AI-generated explanation: The 3-5 record produced +0.0208 from wins and -0.0697 from losses, for a net move of -0.0489. The biggest single-game impact was -0.0171 against Alejandra Bussey as partner and Debbie Hellman / John Gralton 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 3.5837 vs opponent team 3.2743.
Partner Chemistry
Partnership patterns are starting to emerge.
James's most common partner signals so far: Alejandra Bussey (1-1, 50%), David Choate (1-1, 50%), Tony Birchall (1-1, 50%), Michael Kravatz (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
James has faced John Gralton 4 times - record: 1-3. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-13 | 1-3 | 3.7080 | 3.6645 | -0.0435 |
| 2026-10-20 | 2-2 | 3.6645 | 3.6591 | -0.0054 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 20-22 | Michael Kravatz | John Gralton / Ted Abelson | 3.7080 | -0.0155 | 3.6925 |
| 2 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 18-21 | Alejandra Bussey | Debbie Hellman / John Gralton | 3.6925 | -0.0171 | 3.6754 |
| 3 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Win | 21-18 | David Choate | John Gralton / Eric Jones | 3.6754 | +0.0056 | 3.6810 |
| 4 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 17-21 | Tony Birchall | Mike Fritz / John Gralton | 3.6810 | -0.0165 | 3.6645 |
| 5 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 13-21 | David Choate | Kevin Eisemon / Ron Houck | 3.6645 | -0.0093 | 3.6552 |
| 6 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Win | 21-18 | Tony Birchall | Douglas Starn / Kevin Eisemon | 3.6552 | +0.0106 | 3.6658 |
| 7 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 20-22 | Michael Kravatz | Kevin Eisemon / James Ballard | 3.6658 | -0.0113 | 3.6545 |
| 8 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Win | 21-18 | Alejandra Bussey | Kerry Ferrero / Kevin Eisemon | 3.6545 | +0.0046 | 3.6591 |
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 | 3.5344 | 3.3187 | -0.2157 | -0.0155 |
| 2 | 3.5837 | 3.2743 | -0.3093 | -0.0171 |
| 3 | 3.3626 | 3.1988 | +0.1638 | +0.0056 |
| 4 | 3.7769 | 3.5087 | -0.2682 | -0.0165 |
| 5 | 3.3693 | 3.3920 | +0.0227 | -0.0093 |
| 6 | 3.7539 | 3.7752 | -0.0213 | +0.0106 |
| 7 | 3.5249 | 3.4804 | -0.0445 | -0.0113 |
| 8 | 3.5775 | 3.3669 | +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 -0.2157 -> computed delta -0.0155; 3.7080 -0.0155 = 3.6925