Initial VIPR
3.8380
Registry seed
Current VIPR
3.7794
After latest rated game
Net Movement
-0.0586
Current minus initial
Record
5-10
33% win rate · 15 rated games
Storyline
John Ressler entered VIPR with an initial registry rating of 3.8380. Across 15 rated doubles games, the player went 5-10 and moved -0.0586, finishing at 3.7794.
Why It Moved
AI-generated explanation: The 5-10 record produced +0.0338 from wins and -0.0924 from losses, for a net move of -0.0586. The biggest single-game impact was -0.0135 against Jim Toth as partner and Kevin Geraty / Robert Nunn as opponents. In game #13 on 2026-08-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.6718 vs opponent team 3.5448.
Partner Chemistry
Partnership patterns are starting to emerge.
John's most common partner signals so far: Matt Dame (1-1, 50%), Craig Vogel (0-2, 0%), Dan Civitarese (1-0, 100%), Joseph DeVito (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
John has faced Matt Dame 4 times - record: 0-4. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-16 | 2-2 | 3.8380 | 3.8388 | +0.0008 |
| 2026-07-23 | 0-4 | 3.8388 | 3.8024 | -0.0364 |
| 2026-08-06 | 2-2 | 3.8024 | 3.7950 | -0.0074 |
| 2026-08-13 | 1-2 | 3.7950 | 3.7794 | -0.0156 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-16 | Loss | 8-11 | Craig Vogel | Scott Konkel / Matt Dame | 3.8380 | -0.0101 | 3.8279 |
| 2 | 2026-07-16 | Win | 11-8 | Matt Dame | John Hayward / Fred Veenstra | 3.8279 | +0.0100 | 3.8379 |
| 3 | 2026-07-16 | Win | 11-6 | Scott Konkel | Craig Vogel / Fred Veenstra | 3.8379 | +0.0098 | 3.8477 |
| 4 | 2026-07-16 | Loss | 7-11 | John Hayward | Matt Dame / Craig Vogel | 3.8477 | -0.0089 | 3.8388 |
| 5 | 2026-07-23 | Loss | 6-11 | Christopher Burns | Chris Donahue / Matt Dame | 3.8388 | -0.0119 | 3.8269 |
| 6 | 2026-07-23 | Loss | 2-11 | Joe Spano | Chris Donahue / Christopher Burns | 3.8269 | -0.0118 | 3.8151 |
| 7 | 2026-07-23 | Loss | 6-11 | Matt Dame | Joe Spano / Christopher Burns | 3.8151 | -0.0058 | 3.8093 |
| 8 | 2026-07-23 | Loss | 7-11 | Chris Donahue | Joe Spano / Matt Dame | 3.8093 | -0.0069 | 3.8024 |
| 9 | 2026-08-06 | Loss | 9-11 | Craig Vogel | Kevin Battle / Joseph DeVito | 3.8024 | -0.0132 | 3.7892 |
| 10 | 2026-08-06 | Loss | 4-11 | Kevin Battle | Joseph Weber / Jimmy Bowes | 3.7892 | -0.0067 | 3.7825 |
| 11 | 2026-08-06 | Win | 11-8 | Joseph DeVito | Craig Vogel / Jimmy Bowes | 3.7825 | +0.0079 | 3.7904 |
| 12 | 2026-08-06 | Win | 11-10 | Joseph Weber | Craig Vogel / Kevin Battle | 3.7904 | +0.0046 | 3.7950 |
| 13 | 2026-08-13 | Loss | 6-11 | Jim Toth | Kevin Geraty / Robert Nunn | 3.7950 | -0.0135 | 3.7815 |
| 14 | 2026-08-13 | Win | 11-10 | Dan Civitarese | Jim Toth / Kevin Geraty | 3.7815 | +0.0015 | 3.7830 |
| 15 | 2026-08-13 | Loss | 5-11 | Kevin Geraty | Robert Nunn / Dan Civitarese | 3.7830 | -0.0036 | 3.7794 |
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 | 3.8464 | 3.8431 | -0.0033 | -0.0101 |
| 2 | 3.8287 | 3.8273 | +0.0013 | +0.0100 |
| 3 | 3.8584 | 3.8530 | +0.0054 | +0.0098 |
| 4 | 3.8092 | 3.8475 | +0.0383 | -0.0089 |
| 5 | 3.8710 | 3.8051 | -0.0659 | -0.0119 |
| 6 | 3.9026 | 3.8392 | -0.0634 | -0.0118 |
| 7 | 3.8287 | 3.9826 | +0.1538 | -0.0058 |
| 8 | 3.8096 | 3.9202 | +0.1107 | -0.0069 |
| 9 | 3.8027 | 3.6875 | -0.1153 | -0.0132 |
| 10 | 3.6988 | 3.8167 | +0.1178 | -0.0067 |
| 11 | 3.7848 | 3.7124 | +0.0724 | +0.0079 |
| 12 | 3.9029 | 3.6936 | +0.2093 | +0.0046 |
| 13 | 3.6718 | 3.5448 | -0.1270 | -0.0135 |
| 14 | 3.9974 | 3.5586 | +0.4388 | +0.0015 |
| 15 | 3.6060 | 3.8703 | +0.2643 | -0.0036 |
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 -0.0033 -> computed delta -0.0101; 3.8380 -0.0101 = 3.8279