Initial VIPR
4.2740
Registry seed
Current VIPR
4.2788
After latest rated game
Net Movement
+0.0048
Current minus initial
Record
19-15
56% win rate · 34 rated games
Storyline
Bill Shoemaker entered VIPR with an initial registry rating of 4.2740. Across 34 rated doubles games, the player went 19-15 and moved +0.0048, finishing at 4.2788.
Why It Moved
AI-generated explanation: The 19-15 record produced +0.1640 from wins and -0.1592 from losses, for a net move of +0.0048. The biggest single-game impact was -0.0147 against Jim Keating as partner and Mark Burkowski / Craig Narod as opponents. In game #13 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 4.1014.
Partner Chemistry
Partnership patterns are starting to emerge.
Bill's most common partner signals so far: Jason Johnson (2-2, 50%), Jim Keating (2-2, 50%), Richard Whittington (3-0, 100%), David Jeanguenat (2-1, 67%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Bill has faced Richard Whittington 9 times - record: 5-4. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 4-0 | 4.2740 | 4.3115 | +0.0375 |
| 2026-07-09 | 1-3 | 4.3115 | 4.2856 | -0.0259 |
| 2026-07-16 | 3-1 | 4.2856 | 4.2998 | +0.0142 |
| 2026-07-23 | 0-2 | 4.2998 | 4.2783 | -0.0215 |
| 2026-08-06 | 4-0 | 4.2783 | 4.3121 | +0.0338 |
| 2026-08-27 | 1-3 | 4.3121 | 4.2899 | -0.0222 |
| 2026-09-03 | 3-1 | 4.2899 | 4.3040 | +0.0141 |
| 2026-09-10 | 2-2 | 4.3040 | 4.2941 | -0.0099 |
| 2026-09-17 | 1-3 | 4.2941 | 4.2788 | -0.0153 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | Scott Atkin | Jim Suminski / Jim Keating | 4.2740 | +0.0121 | 4.2861 |
| 2 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Jim Keating | Scott Atkin / Mark Burkowski | 4.2861 | +0.0064 | 4.2925 |
| 3 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Mark Burkowski | Jim Suminski / Scott Atkin | 4.2925 | +0.0122 | 4.3047 |
| 4 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Jim Suminski | Jim Keating / Mark Burkowski | 4.3047 | +0.0068 | 4.3115 |
| 5 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Jim Keating | Patrick Lee / Sal Aparo | 4.3115 | -0.0136 | 4.2979 |
| 6 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Sal Aparo | Jim Keating / Jason Johnson | 4.2979 | -0.0127 | 4.2852 |
| 7 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Jason Johnson | Patrick Lee / Jim Keating | 4.2852 | +0.0084 | 4.2936 |
| 8 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Patrick Lee | Sal Aparo / Jason Johnson | 4.2936 | -0.0080 | 4.2856 |
| 9 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Patrick Wilson | Jerry Linklater / Jason Johnson | 4.2856 | +0.0126 | 4.2982 |
| 10 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Richard Whittington | Jason Johnson / Patrick Wilson | 4.2982 | +0.0106 | 4.3088 |
| 11 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 2-11 | Jason Johnson | Jerry Linklater / Richard Whittington | 4.3088 | -0.0135 | 4.2953 |
| 12 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Jerry Linklater | Patrick Wilson / Richard Whittington | 4.2953 | +0.0045 | 4.2998 |
| 13 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | Jim Keating | Mark Burkowski / Craig Narod | 4.2998 | -0.0147 | 4.2851 |
| 14 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Craig Narod | Mark Burkowski / Daren Haskell | 4.2851 | -0.0068 | 4.2783 |
| 15 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | Jim Keating | Richard Whittington / Jason Johnson | 4.2783 | +0.0055 | 4.2838 |
| 16 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Jason Johnson | Richard Whittington / Craig Narod | 4.2838 | +0.0059 | 4.2897 |
| 17 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | Richard Whittington | Jim Keating / Craig Narod | 4.2897 | +0.0108 | 4.3005 |
| 18 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Craig Narod | Jim Keating / Jason Johnson | 4.3005 | +0.0116 | 4.3121 |
| 19 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Jim Suminski | Gary Jones / David DeBeradinis | 4.3121 | -0.0082 | 4.3039 |
| 20 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Chip Leccese | David DeBeradinis / Jim Suminski | 4.3039 | -0.0070 | 4.2969 |
| 21 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | David DeBeradinis | Gary Jones / Chip Leccese | 4.2969 | +0.0066 | 4.3035 |
| 22 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | Gary Jones | Jim Suminski / Chip Leccese | 4.3035 | -0.0136 | 4.2899 |
| 23 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | David Jeanguenat | Mark Burkowski / Richard Whittington | 4.2899 | +0.0056 | 4.2955 |
| 24 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Chip Leccese | David Jeanguenat / Mark Burkowski | 4.2955 | +0.0096 | 4.3051 |
| 25 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Loss | 6-11 | Mark Burkowski | Richard Whittington / Chip Leccese | 4.3051 | -0.0127 | 4.2924 |
| 26 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Richard Whittington | David Jeanguenat / Chip Leccese | 4.2924 | +0.0116 | 4.3040 |
| 27 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | David Jeanguenat | David DeBeradinis / Craig Narod | 4.3040 | +0.0088 | 4.3128 |
| 28 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Craig Narod | Richard Whittington / Jason Johnson | 4.3128 | -0.0118 | 4.3010 |
| 29 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | David DeBeradinis | Richard Whittington / Craig Narod | 4.3010 | +0.0045 | 4.3055 |
| 30 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | Jason Johnson | Richard Whittington / David Jeanguenat | 4.3055 | -0.0114 | 4.2941 |
| 31 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 4-11 | Jerry Linklater | Steve LaVallee / Chris Eversole | 4.2941 | -0.0073 | 4.2868 |
| 32 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | Chris Eversole | Jerry Linklater / David Jeanguenat | 4.2868 | -0.0112 | 4.2756 |
| 33 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 3-11 | David Jeanguenat | Steve LaVallee / Jerry Linklater | 4.2756 | -0.0067 | 4.2689 |
| 34 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | Steve LaVallee | Chris Eversole / David Jeanguenat | 4.2689 | +0.0099 | 4.2788 |
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 | 4.2453 | 4.3191 | -0.0738 | +0.0121 |
| 2 | 4.2917 | 4.1610 | +0.1307 | +0.0064 |
| 3 | 4.1795 | 4.2557 | -0.0762 | +0.0122 |
| 4 | 4.3069 | 4.1899 | +0.1170 | +0.0068 |
| 5 | 4.2979 | 4.1679 | -0.1300 | -0.0136 |
| 6 | 4.3089 | 4.2110 | -0.0980 | -0.0127 |
| 7 | 4.2319 | 4.1742 | +0.0576 | +0.0084 |
| 8 | 4.1733 | 4.2445 | +0.0711 | -0.0080 |
| 9 | 4.1445 | 4.2388 | -0.0943 | +0.0126 |
| 10 | 4.1119 | 4.1315 | -0.0196 | +0.0106 |
| 11 | 4.2342 | 4.1070 | -0.1271 | -0.0135 |
| 12 | 4.2782 | 4.0651 | +0.2132 | +0.0045 |
| 13 | 4.2779 | 4.1014 | -0.1765 | -0.0147 |
| 14 | 4.1510 | 4.2677 | +0.1168 | -0.0068 |
| 15 | 4.2544 | 4.0856 | +0.1689 | +0.0055 |
| 16 | 4.2073 | 4.0566 | +0.1507 | +0.0059 |
| 17 | 4.1105 | 4.1382 | -0.0277 | +0.0108 |
| 18 | 4.1387 | 4.1939 | -0.0551 | +0.0116 |
| 19 | 4.2866 | 4.3490 | +0.0624 | -0.0082 |
| 20 | 4.1988 | 4.3049 | +0.1061 | -0.0070 |
| 21 | 4.3277 | 4.2054 | +0.1223 | +0.0066 |
| 22 | 4.3131 | 4.1805 | -0.1326 | -0.0136 |
| 23 | 4.2565 | 4.0912 | +0.1653 | +0.0056 |
| 24 | 4.1967 | 4.1821 | +0.0147 | +0.0096 |
| 25 | 4.1891 | 4.0946 | -0.0945 | -0.0127 |
| 26 | 4.1420 | 4.1986 | -0.0565 | +0.0116 |
| 27 | 4.2578 | 4.2151 | +0.0427 | +0.0088 |
| 28 | 4.1787 | 4.1159 | -0.0628 | -0.0118 |
| 29 | 4.3315 | 4.1144 | +0.2170 | +0.0045 |
| 30 | 4.1992 | 4.1494 | -0.0498 | -0.0114 |
| 31 | 4.3158 | 4.4130 | +0.0972 | -0.0073 |
| 32 | 4.3317 | 4.2902 | -0.0415 | -0.0112 |
| 33 | 4.2674 | 4.3865 | +0.1190 | -0.0067 |
| 34 | 4.3119 | 4.3100 | +0.0019 | +0.0099 |
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; 4.2740 +0.0121 = 4.2861