Initial VIPR
4.1250
Registry seed
Current VIPR
4.1634
After latest rated game
Net Movement
+0.0384
Current minus initial
Record
7-4
64% win rate · 11 rated games
Storyline
Mark Burkowski entered VIPR with an initial registry rating of 4.1250. Across 11 rated doubles games, the player went 7-4 and moved +0.0384, finishing at 4.1634.
Why It Moved
AI-generated explanation: The 7-4 record produced +0.0775 from wins and -0.0391 from losses, for a net move of +0.0384. The biggest single-game impact was +0.0148 against Craig Narod as partner and Jim Keating / Bill Shoemaker as opponents. In game #9 on 2026-07-23, the player's team was the lower-rated team, so the win carried a larger gain: player team 4.0970 vs opponent team 4.2779.
Partner Chemistry
Partnership patterns are starting to emerge.
Mark's most common partner signals so far: Craig Narod (2-0, 100%), Daren Haskell (2-0, 100%), Jim Keating (0-2, 0%), Bill Shoemaker (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
Mark has faced Bill Shoemaker 4 times - record: 2-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 2-2 | 4.1250 | 4.1364 | +0.0114 |
| 2026-07-09 | 3-1 | 4.1364 | 4.1504 | +0.0140 |
| 2026-07-23 | 2-1 | 4.1504 | 4.1634 | +0.0130 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 5-11 | Scott Atkin | Jim Keating / Bill Shoemaker | 4.1250 | -0.0064 | 4.1186 |
| 2 | 2026-07-02 | Win | 11-4 | Jim Suminski | Jim Keating / Scott Atkin | 4.1186 | +0.0124 | 4.1310 |
| 3 | 2026-07-02 | Win | 11-6 | Bill Shoemaker | Jim Suminski / Scott Atkin | 4.1310 | +0.0122 | 4.1432 |
| 4 | 2026-07-02 | Loss | 8-11 | Jim Keating | Jim Suminski / Bill Shoemaker | 4.1432 | -0.0068 | 4.1364 |
| 5 | 2026-07-09 | Loss | 5-11 | William Danny Webster | Craig Narod / Martin Brady | 4.1364 | -0.0119 | 4.1245 |
| 6 | 2026-07-09 | Win | 11-5 | Daren Haskell | William Danny Webster / Craig Narod | 4.1245 | +0.0088 | 4.1333 |
| 7 | 2026-07-09 | Win | 11-4 | Craig Narod | Martin Brady / Daren Haskell | 4.1333 | +0.0072 | 4.1405 |
| 8 | 2026-07-09 | Win | 11-7 | Martin Brady | William Danny Webster / Daren Haskell | 4.1405 | +0.0099 | 4.1504 |
| 9 | 2026-07-23 | Win | 11-10 | Craig Narod | Jim Keating / Bill Shoemaker | 4.1504 | +0.0148 | 4.1652 |
| 10 | 2026-07-23 | Win | 11-5 | Daren Haskell | Bill Shoemaker / Craig Narod | 4.1652 | +0.0122 | 4.1774 |
| 11 | 2026-07-23 | Loss | 6-11 | Jim Keating | Craig Narod / Daren Haskell | 4.1774 | -0.0140 | 4.1634 |
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 | 4.1610 | 4.2917 | +0.1307 | -0.0064 |
| 2 | 4.1766 | 4.2605 | -0.0839 | +0.0124 |
| 3 | 4.1795 | 4.2557 | -0.0762 | +0.0122 |
| 4 | 4.1899 | 4.3069 | +0.1170 | -0.0068 |
| 5 | 4.0541 | 3.9865 | -0.0676 | -0.0119 |
| 6 | 4.0648 | 4.0218 | +0.0430 | +0.0088 |
| 7 | 4.0868 | 3.9868 | +0.1000 | +0.0072 |
| 8 | 4.0095 | 4.0052 | +0.0044 | +0.0099 |
| 9 | 4.0970 | 4.2779 | -0.1809 | +0.0148 |
| 10 | 4.0712 | 4.1477 | -0.0765 | +0.0122 |
| 11 | 4.2003 | 4.0532 | -0.1471 | -0.0140 |
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 +0.1307 -> computed delta -0.0064; 4.1250 -0.0064 = 4.1186