Initial VIPR
3.6750
Registry seed
Current VIPR
3.8033
After latest rated game
Net Movement
+0.1283
Current minus initial
Record
13-3
81% win rate · 16 rated games
Storyline
Chris Donahue entered VIPR with an initial registry rating of 3.6750. Across 16 rated doubles games, the player went 13-3 and moved +0.1283, finishing at 3.8033.
Why It Moved
AI-generated explanation: The 13-3 record produced +0.1513 from wins and -0.0230 from losses, for a net move of +0.1283. The biggest single-game impact was +0.0159 against John Hayward as partner and Craig Vogel / Joseph Weber as opponents. In game #5 on 2026-07-09, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.7383 vs opponent team 3.9758.
Partner Chemistry
Partnership patterns are starting to emerge.
Chris's most common partner signals so far: Christopher Burns (1-0, 100%), Craig Vogel (1-0, 100%), Jerry Stotts (1-0, 100%), Jimmy Bowes (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
Chris has faced Matt Dame 5 times - record: 3-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 4-0 | 3.6750 | 3.7121 | +0.0371 |
| 2026-07-09 | 3-1 | 3.7121 | 3.7416 | +0.0295 |
| 2026-07-16 | 3-1 | 3.7416 | 3.7758 | +0.0342 |
| 2026-07-23 | 3-1 | 3.7758 | 3.8033 | +0.0275 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Win | 11-3 | Randy Cummings | Jimmy Bowes / Kevin Battle | 3.6750 | +0.0106 | 3.6856 |
| 2 | 2026-07-02 | Win | 11-4 | Robert Nunn | Kevin Battle / Randy Cummings | 3.6856 | +0.0117 | 3.6973 |
| 3 | 2026-07-02 | Win | 11-5 | Kevin Battle | Jimmy Bowes / Robert Nunn | 3.6973 | +0.0081 | 3.7054 |
| 4 | 2026-07-02 | Win | 11-2 | Jimmy Bowes | Randy Cummings / Robert Nunn | 3.7054 | +0.0067 | 3.7121 |
| 5 | 2026-07-09 | Win | 11-4 | John Hayward | Craig Vogel / Joseph Weber | 3.7121 | +0.0159 | 3.7280 |
| 6 | 2026-07-09 | Win | 11-7 | Joseph Weber | Matt Dame / Frank Pindulic | 3.7280 | +0.0077 | 3.7357 |
| 7 | 2026-07-09 | Win | 11-10 | Craig Vogel | Matt Dame / Joseph Weber | 3.7357 | +0.0143 | 3.7500 |
| 8 | 2026-07-09 | Loss | 8-11 | Frank Pindulic | Matt Dame / John Hayward | 3.7500 | -0.0084 | 3.7416 |
| 9 | 2026-07-16 | Win | 11-8 | Ken Vallance | Jerry Stotts / Jerry Visconti | 3.7416 | +0.0146 | 3.7562 |
| 10 | 2026-07-16 | Win | 11-8 | Jerry Stotts | William Danny Webster / Pete Nikolakakis | 3.7562 | +0.0125 | 3.7687 |
| 11 | 2026-07-16 | Loss | 3-11 | Jerry Visconti | Ken Vallance / Pete Nikolakakis | 3.7687 | -0.0077 | 3.7610 |
| 12 | 2026-07-16 | Win | 11-7 | William Danny Webster | Ken Vallance / Jerry Stotts | 3.7610 | +0.0148 | 3.7758 |
| 13 | 2026-07-23 | Win | 11-3 | Joe Spano | Christopher Burns / Matt Dame | 3.7758 | +0.0107 | 3.7865 |
| 14 | 2026-07-23 | Win | 11-6 | Matt Dame | Christopher Burns / John Ressler | 3.7865 | +0.0119 | 3.7984 |
| 15 | 2026-07-23 | Win | 11-2 | Christopher Burns | Joe Spano / John Ressler | 3.7984 | +0.0118 | 3.8102 |
| 16 | 2026-07-23 | Loss | 7-11 | John Ressler | Joe Spano / Matt Dame | 3.8102 | -0.0069 | 3.8033 |
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 | 3.6400 | 3.6601 | -0.0201 | +0.0106 |
| 2 | 3.5767 | 3.6364 | -0.0598 | +0.0117 |
| 3 | 3.6479 | 3.5818 | +0.0661 | +0.0081 |
| 4 | 3.6787 | 3.5607 | +0.1180 | +0.0067 |
| 5 | 3.7383 | 3.9758 | -0.2375 | +0.0159 |
| 6 | 3.8681 | 3.7886 | +0.0796 | +0.0077 |
| 7 | 3.7733 | 3.9350 | -0.1617 | +0.0143 |
| 8 | 3.7576 | 3.8124 | +0.0548 | -0.0084 |
| 9 | 3.8191 | 3.9935 | -0.1744 | +0.0146 |
| 10 | 3.8254 | 3.9158 | -0.0903 | +0.0125 |
| 11 | 3.8344 | 3.9173 | +0.0829 | -0.0077 |
| 12 | 3.8193 | 4.0025 | -0.1833 | +0.0148 |
| 13 | 3.8636 | 3.8886 | -0.0250 | +0.0107 |
| 14 | 3.8051 | 3.8710 | -0.0659 | +0.0119 |
| 15 | 3.8392 | 3.9026 | -0.0634 | +0.0118 |
| 16 | 3.8096 | 3.9202 | +0.1107 | -0.0069 |
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 -0.0201 -> computed delta +0.0106; 3.6750 +0.0106 = 3.6856