Initial VIPR
4.3170
Registry seed
Current VIPR
4.2330
After latest rated game
Net Movement
-0.0840
Current minus initial
Record
4-10
29% win rate · 14 rated games
Storyline
Jim Keating entered VIPR with an initial registry rating of 4.3170. Across 14 rated doubles games, the player went 4-10 and moved -0.0840, finishing at 4.2330.
Why It Moved
AI-generated explanation: The 4-10 record produced +0.0348 from wins and -0.1188 from losses, for a net move of -0.0840. The biggest single-game impact was -0.0148 against Bill Shoemaker as partner and Mark Burkowski / Craig Narod as opponents. In game #9 on 2026-07-23, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 4.2779 vs opponent team 4.0970.
Partner Chemistry
Partnership patterns are starting to emerge.
Jim's most common partner signals so far: Bill Shoemaker (2-2, 50%), Jason Johnson (1-1, 50%), Mark Burkowski (0-2, 0%), Richard Whittington (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
Jim has faced Bill Shoemaker 6 times - record: 1-5. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 1-3 | 4.3170 | 4.2921 | -0.0249 |
| 2026-07-09 | 1-3 | 4.2921 | 4.2685 | -0.0236 |
| 2026-07-23 | 0-2 | 4.2685 | 4.2397 | -0.0288 |
| 2026-08-06 | 2-2 | 4.2397 | 4.2330 | -0.0067 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 10-11 | Jim Suminski | Scott Atkin / Bill Shoemaker | 4.3170 | -0.0121 | 4.3049 |
| 2 | 2026-07-02 | Win | 11-5 | Bill Shoemaker | Scott Atkin / Mark Burkowski | 4.3049 | +0.0064 | 4.3113 |
| 3 | 2026-07-02 | Loss | 4-11 | Scott Atkin | Jim Suminski / Mark Burkowski | 4.3113 | -0.0124 | 4.2989 |
| 4 | 2026-07-02 | Loss | 8-11 | Mark Burkowski | Jim Suminski / Bill Shoemaker | 4.2989 | -0.0068 | 4.2921 |
| 5 | 2026-07-09 | Loss | 8-11 | Bill Shoemaker | Patrick Lee / Sal Aparo | 4.2921 | -0.0136 | 4.2785 |
| 6 | 2026-07-09 | Win | 11-5 | Jason Johnson | Sal Aparo / Bill Shoemaker | 4.2785 | +0.0127 | 4.2912 |
| 7 | 2026-07-09 | Loss | 4-11 | Sal Aparo | Patrick Lee / Jason Johnson | 4.2912 | -0.0143 | 4.2769 |
| 8 | 2026-07-09 | Loss | 8-11 | Patrick Lee | Bill Shoemaker / Jason Johnson | 4.2769 | -0.0084 | 4.2685 |
| 9 | 2026-07-23 | Loss | 10-11 | Bill Shoemaker | Mark Burkowski / Craig Narod | 4.2685 | -0.0148 | 4.2537 |
| 10 | 2026-07-23 | Loss | 6-11 | Mark Burkowski | Craig Narod / Daren Haskell | 4.2537 | -0.0140 | 4.2397 |
| 11 | 2026-08-06 | Win | 11-3 | Bill Shoemaker | Richard Whittington / Jason Johnson | 4.2397 | +0.0056 | 4.2453 |
| 12 | 2026-08-06 | Loss | 10-11 | Craig Narod | Bill Shoemaker / Richard Whittington | 4.2453 | -0.0107 | 4.2346 |
| 13 | 2026-08-06 | Win | 11-4 | Richard Whittington | Jason Johnson / Craig Narod | 4.2346 | +0.0101 | 4.2447 |
| 14 | 2026-08-06 | Loss | 5-11 | Jason Johnson | Bill Shoemaker / Craig Narod | 4.2447 | -0.0117 | 4.2330 |
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 | 4.3191 | 4.2453 | -0.0738 | -0.0121 |
| 2 | 4.2917 | 4.1610 | +0.1307 | +0.0064 |
| 3 | 4.2605 | 4.1766 | -0.0839 | -0.0124 |
| 4 | 4.1899 | 4.3069 | +0.1170 | -0.0068 |
| 5 | 4.2979 | 4.1679 | -0.1300 | -0.0136 |
| 6 | 4.2110 | 4.3089 | -0.0980 | +0.0127 |
| 7 | 4.3004 | 4.1395 | -0.1609 | -0.0143 |
| 8 | 4.1742 | 4.2319 | +0.0576 | -0.0084 |
| 9 | 4.2779 | 4.0970 | -0.1809 | -0.0148 |
| 10 | 4.2003 | 4.0532 | -0.1471 | -0.0140 |
| 11 | 4.2496 | 4.0856 | +0.1641 | +0.0056 |
| 12 | 4.1330 | 4.1088 | -0.0241 | -0.0107 |
| 13 | 4.1014 | 4.1060 | -0.0046 | +0.0101 |
| 14 | 4.1925 | 4.1333 | -0.0592 | -0.0117 |
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 -0.0738 -> computed delta -0.0121; 4.3170 -0.0121 = 4.3049