Initial VIPR
3.7130
Registry seed
Current VIPR
3.7208
After latest rated game
Net Movement
+0.0078
Current minus initial
Record
5-3
62% win rate · 8 rated games
Storyline
Kevin Eisemon entered VIPR with an initial registry rating of 3.7130. Across 8 rated doubles games, the player went 5-3 and moved +0.0078, finishing at 3.7208.
Why It Moved
AI-generated explanation: The 5-3 record produced +0.0375 from wins and -0.0297 from losses, for a net move of +0.0078. The biggest single-game impact was -0.0145 against Ron Houck as partner and Phil Sciacca / Ed Carney as opponents. In game #3 on 2026-10-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.4122 vs opponent team 3.2432.
Partner Chemistry
Partnership patterns are starting to emerge.
Kevin's most common partner signals so far: James Ballard (2-0, 100%), Douglas Starn (1-1, 50%), Kerry Ferrero (1-1, 50%), Ron Houck (1-1, 50%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Kevin has faced Phil Sciacca 4 times - record: 3-1. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-13 | 3-1 | 3.7130 | 3.7154 | +0.0024 |
| 2026-10-20 | 2-2 | 3.7154 | 3.7208 | +0.0054 |
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 | 21-16 | James Ballard | Phil Sciacca / Kerry Jewell | 3.7130 | +0.0053 | 3.7183 |
| 2 | 2026-10-13 Santiago Club - Team 1 vs Team 2 |
Win | 21-11 | Kerry Ferrero | Kirstin Burri / Phil Sciacca | 3.7183 | +0.0086 | 3.7269 |
| 3 | 2026-10-13 Santiago Club - Team 1 vs Team 2 |
Loss | 24-25 | Ron Houck | Phil Sciacca / Ed Carney | 3.7269 | -0.0145 | 3.7124 |
| 4 | 2026-10-13 Santiago Club - Team 1 vs Team 2 |
Win | 21-10 | Douglas Starn | Mike Blackston / Phil Sciacca | 3.7124 | +0.0030 | 3.7154 |
| 5 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Win | 21-13 | Ron Houck | James Peavley / David Choate | 3.7154 | +0.0093 | 3.7247 |
| 6 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 18-21 | Douglas Starn | Tony Birchall / James Peavley | 3.7247 | -0.0106 | 3.7141 |
| 7 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Win | 22-20 | James Ballard | James Peavley / Michael Kravatz | 3.7141 | +0.0113 | 3.7254 |
| 8 | 2026-10-20 Santiago Club - Team 3 vs Team 1 |
Loss | 18-21 | Kerry Ferrero | Alejandra Bussey / James Peavley | 3.7254 | -0.0046 | 3.7208 |
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 | 3.4869 | 3.3076 | +0.1793 | +0.0053 |
| 2 | 3.3485 | 3.2982 | +0.0503 | +0.0086 |
| 3 | 3.4122 | 3.2432 | -0.1690 | -0.0145 |
| 4 | 3.7667 | 3.4660 | +0.3007 | +0.0030 |
| 5 | 3.3920 | 3.3693 | +0.0227 | +0.0093 |
| 6 | 3.7752 | 3.7539 | -0.0213 | -0.0106 |
| 7 | 3.4804 | 3.5249 | -0.0445 | +0.0113 |
| 8 | 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 +0.1793 -> computed delta +0.0053; 3.7130 +0.0053 = 3.7183