Initial VIPR
4.0170
Registry seed
Current VIPR
4.0995
After latest rated game
Net Movement
+0.0825
Current minus initial
Record
21-13
62% win rate · 34 rated games
Storyline
Craig Narod entered VIPR with an initial registry rating of 4.0170. Across 34 rated doubles games, the player went 21-13 and moved +0.0825, finishing at 4.0995.
Why It Moved
AI-generated explanation: The 21-13 record produced +0.2026 from wins and -0.1201 from losses, for a net move of +0.0825. The biggest single-game impact was +0.0196 against Ramon Jimenez as partner and Jason Johnson / Ken Vallance as opponents. In game #21 on 2026-08-27, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.4118 vs opponent team 4.0703.
Partner Chemistry
Partnership patterns are starting to emerge.
Craig's most common partner signals so far: Martin Brady (2-1, 67%), Bill Shoemaker (1-2, 33%), Richard Whittington (1-2, 33%), Daren Haskell (2-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Craig has faced Jason Johnson 6 times - record: 3-3. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 4-0 | 4.0170 | 4.0556 | +0.0386 |
| 2026-07-09 | 3-1 | 4.0556 | 4.0788 | +0.0232 |
| 2026-07-23 | 2-1 | 4.0788 | 4.0963 | +0.0175 |
| 2026-08-06 | 1-3 | 4.0963 | 4.0810 | -0.0153 |
| 2026-08-20 | 3-1 | 4.0810 | 4.0964 | +0.0154 |
| 2026-08-27 | 2-1 | 4.0964 | 4.1027 | +0.0063 |
| 2026-09-03 | 4-0 | 4.1027 | 4.1300 | +0.0273 |
| 2026-09-10 | 1-3 | 4.1300 | 4.1175 | -0.0125 |
| 2026-09-17 | 1-3 | 4.1175 | 4.0995 | -0.0180 |
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 | 11-0 | Martin Brady | Jeff Fink / Joe Spano | 4.0170 | +0.0127 | 4.0297 |
| 2 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Joe Spano | Martin Brady / Fred Veenstra | 4.0297 | +0.0068 | 4.0365 |
| 3 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Fred Veenstra | Jeff Fink / Martin Brady | 4.0365 | +0.0118 | 4.0483 |
| 4 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | Jeff Fink | Joe Spano / Fred Veenstra | 4.0483 | +0.0073 | 4.0556 |
| 5 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Martin Brady | Mark Burkowski / William Danny Webster | 4.0556 | +0.0119 | 4.0675 |
| 6 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Daren Haskell | William Danny Webster / Martin Brady | 4.0675 | +0.0044 | 4.0719 |
| 7 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | William Danny Webster | Mark Burkowski / Daren Haskell | 4.0719 | -0.0044 | 4.0675 |
| 8 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Mark Burkowski | Martin Brady / Daren Haskell | 4.0675 | +0.0113 | 4.0788 |
| 9 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | Mark Burkowski | Jim Keating / Bill Shoemaker | 4.0788 | +0.0147 | 4.0935 |
| 10 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Bill Shoemaker | Mark Burkowski / Daren Haskell | 4.0935 | -0.0068 | 4.0867 |
| 11 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Daren Haskell | Jim Keating / Mark Burkowski | 4.0867 | +0.0096 | 4.0963 |
| 12 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Richard Whittington | Bill Shoemaker / Jason Johnson | 4.0963 | -0.0059 | 4.0904 |
| 13 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | Jim Keating | Bill Shoemaker / Richard Whittington | 4.0904 | -0.0108 | 4.0796 |
| 14 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Loss | 4-11 | Jason Johnson | Jim Keating / Richard Whittington | 4.0796 | -0.0102 | 4.0694 |
| 15 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Bill Shoemaker | Jim Keating / Jason Johnson | 4.0694 | +0.0116 | 4.0810 |
| 16 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Win | 11-1 | Jim Suminski | Chris Donahue / Joe Spano | 4.0810 | +0.0048 | 4.0858 |
| 17 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Joe Spano | Chris Donahue / Tim Tonguis | 4.0858 | +0.0038 | 4.0896 |
| 18 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Chris Donahue | Jim Suminski / Tim Tonguis | 4.0896 | -0.0093 | 4.0803 |
| 19 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Tim Tonguis | Jim Suminski / Joe Spano | 4.0803 | +0.0161 | 4.0964 |
| 20 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Jason Johnson | Ken Vallance / Martin Brady | 4.0964 | +0.0059 | 4.1023 |
| 21 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Ramon Jimenez | Jason Johnson / Ken Vallance | 4.1023 | +0.0196 | 4.1219 |
| 22 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 2-11 | Martin Brady | Jason Johnson / Ramon Jimenez | 4.1219 | -0.0192 | 4.1027 |
| 23 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-2 | Chris Donahue | Ramon Jimenez / William Danny Webster | 4.1027 | +0.0008 | 4.1035 |
| 24 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Scott Konkel | Chris Donahue / Ramon Jimenez | 4.1035 | +0.0005 | 4.1040 |
| 25 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Ramon Jimenez | William Danny Webster / Scott Konkel | 4.1040 | +0.0189 | 4.1229 |
| 26 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | William Danny Webster | Chris Donahue / Scott Konkel | 4.1229 | +0.0071 | 4.1300 |
| 27 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | David DeBeradinis | Bill Shoemaker / David Jeanguenat | 4.1300 | -0.0088 | 4.1212 |
| 28 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Bill Shoemaker | Richard Whittington / Jason Johnson | 4.1212 | -0.0118 | 4.1094 |
| 29 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | David Jeanguenat | David DeBeradinis / Jason Johnson | 4.1094 | +0.0126 | 4.1220 |
| 30 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | Richard Whittington | David DeBeradinis / Bill Shoemaker | 4.1220 | -0.0045 | 4.1175 |
| 31 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 6-11 | Mark Norman | Gary Jones / Richard Whittington | 4.1175 | -0.0072 | 4.1103 |
| 32 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | John Hubbs | Gary Jones / Mark Norman | 4.1103 | -0.0110 | 4.0993 |
| 33 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Richard Whittington | John Hubbs / Mark Norman | 4.0993 | +0.0104 | 4.1097 |
| 34 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Gary Jones | John Hubbs / Richard Whittington | 4.1097 | -0.0102 | 4.0995 |
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 | 3.9729 | 4.0692 | -0.0963 | +0.0127 |
| 2 | 4.0365 | 3.9214 | +0.1151 | +0.0068 |
| 3 | 3.9314 | 3.9953 | -0.0639 | +0.0118 |
| 4 | 4.0465 | 3.9491 | +0.0974 | +0.0073 |
| 5 | 3.9865 | 4.0541 | -0.0676 | +0.0119 |
| 6 | 4.2017 | 3.9802 | +0.2215 | +0.0044 |
| 7 | 4.0233 | 4.2430 | +0.2197 | -0.0044 |
| 8 | 4.0859 | 4.1322 | -0.0463 | +0.0113 |
| 9 | 4.1014 | 4.2779 | -0.1765 | +0.0147 |
| 10 | 4.1510 | 4.2677 | +0.1168 | -0.0068 |
| 11 | 4.2123 | 4.1991 | +0.0133 | +0.0096 |
| 12 | 4.0566 | 4.2073 | +0.1507 | -0.0059 |
| 13 | 4.1382 | 4.1105 | -0.0277 | -0.0108 |
| 14 | 4.1098 | 4.1028 | -0.0070 | -0.0102 |
| 15 | 4.1387 | 4.1939 | -0.0551 | +0.0116 |
| 16 | 4.1376 | 3.9391 | +0.1985 | +0.0048 |
| 17 | 4.0868 | 3.8363 | +0.2505 | +0.0038 |
| 18 | 3.9318 | 3.9556 | +0.0239 | -0.0093 |
| 19 | 3.8984 | 4.1471 | -0.2487 | +0.0161 |
| 20 | 4.1151 | 3.9618 | +0.1533 | +0.0059 |
| 21 | 3.4118 | 4.0703 | -0.6585 | +0.0196 |
| 22 | 3.9838 | 3.4385 | -0.5453 | -0.0192 |
| 23 | 3.9347 | 3.3912 | +0.5435 | +0.0008 |
| 24 | 3.9858 | 3.3663 | +0.6195 | +0.0005 |
| 25 | 3.4378 | 3.9381 | -0.5003 | +0.0189 |
| 26 | 3.9840 | 3.8800 | +0.1040 | +0.0071 |
| 27 | 4.2151 | 4.2578 | +0.0427 | -0.0088 |
| 28 | 4.1787 | 4.1159 | -0.0628 | -0.0118 |
| 29 | 4.1476 | 4.2409 | -0.0934 | +0.0126 |
| 30 | 4.1144 | 4.3315 | +0.2170 | -0.0045 |
| 31 | 4.0718 | 4.1706 | +0.0988 | -0.0072 |
| 32 | 4.1599 | 4.1249 | -0.0351 | -0.0110 |
| 33 | 4.1057 | 4.1186 | -0.0129 | +0.0104 |
| 34 | 4.1734 | 4.1680 | -0.0055 | -0.0102 |
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 -0.0963 -> computed delta +0.0127; 4.0170 +0.0127 = 4.0297