Initial VIPR
2.8910
Registry seed
Current VIPR
2.9853
After latest rated game
Net Movement
+0.0943
Current minus initial
Record
34-12
74% win rate · 46 rated games
Storyline
James Russ entered VIPR with an initial registry rating of 2.8910. Across 46 rated doubles games, the player went 34-12 and moved +0.0943, finishing at 2.9853.
Why It Moved
AI-generated explanation: The 34-12 record produced +0.1836 from wins and -0.0893 from losses, for a net move of +0.0943. The biggest single-game impact was +0.0181 against Mark Gamrat as partner and John Jederlinic / Adrian Marchetti as opponents. In game #38 on 2026-10-01, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.3872 vs opponent team 2.7831.
Partner Chemistry
One high-chemistry partnership stands out.
James's strongest repeated partnership is with Mark Gamrat (7-1, 88%). That pairing has reached the 8+ match and 75%+ win-rate marker in the current data.
Streaks & Rivalries
Rivalry
James has faced Rick Ross 16 times - record: 14-2. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 2-2 | 2.8910 | 2.8810 | -0.0100 |
| 2026-07-16 | 3-1 | 2.8810 | 2.8866 | +0.0056 |
| 2026-08-13 | 4-0 | 2.8866 | 2.9046 | +0.0180 |
| 2026-08-20 | 4-0 | 2.9046 | 2.9273 | +0.0227 |
| 2026-08-27 | 2-2 | 2.9273 | 2.9187 | -0.0086 |
| 2026-09-03 | 3-1 | 2.9187 | 2.9349 | +0.0162 |
| 2026-09-10 | 4-0 | 2.9349 | 2.9638 | +0.0289 |
| 2026-09-17 | 2-2 | 2.9638 | 2.9563 | -0.0075 |
| 2026-09-24 | 3-1 | 2.9563 | 2.9568 | +0.0005 |
| 2026-10-01 | 4-0 | 2.9568 | 2.9893 | +0.0325 |
| 2026-10-15 | 2-2 | 2.9893 | 2.9865 | -0.0028 |
| 2026-10-29 | 1-1 | 2.9865 | 2.9853 | -0.0012 |
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 | 11-2 | Mike Cluck | Mark Gamrat / Louis Colella | 2.8910 | +0.0002 | 2.8912 |
| 2 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Loss | 1-11 | Louis Colella | Mark Gamrat / Ramon Jimenez | 2.8912 | -0.0106 | 2.8806 |
| 3 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Loss | 1-11 | Mark Gamrat | Mike Cluck / Ramon Jimenez | 2.8806 | -0.0007 | 2.8799 |
| 4 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Ramon Jimenez | Mike Cluck / Louis Colella | 2.8799 | +0.0011 | 2.8810 |
| 5 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Maurice Finnegan | Rick Ross / Mark Gamrat | 2.8810 | +0.0010 | 2.8820 |
| 6 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 4-11 | Louis Colella | Maurice Finnegan / Rick Ross | 2.8820 | -0.0042 | 2.8778 |
| 7 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Rick Ross | Mark Gamrat / Louis Colella | 2.8778 | +0.0009 | 2.8787 |
| 8 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Mark Gamrat | Maurice Finnegan / Louis Colella | 2.8787 | +0.0079 | 2.8866 |
| 9 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Rick Ross | Mark Gamrat / Randy DeVries | 2.8866 | +0.0020 | 2.8886 |
| 10 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Louis Colella | Rick Ross / Mark Gamrat | 2.8886 | +0.0071 | 2.8957 |
| 11 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Win | 11-1 | Mark Gamrat | Randy DeVries / Louis Colella | 2.8957 | +0.0077 | 2.9034 |
| 12 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | Randy DeVries | Rick Ross / Louis Colella | 2.9034 | +0.0012 | 2.9046 |
| 13 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Roger Thurman | Rick Ross / Ken Gallagher | 2.9046 | +0.0017 | 2.9063 |
| 14 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Ken Gallagher | Rick Ross / Mark Gamrat | 2.9063 | +0.0022 | 2.9085 |
| 15 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Rick Ross | Roger Thurman / Mark Gamrat | 2.9085 | +0.0029 | 2.9114 |
| 16 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Mark Gamrat | Roger Thurman / Ken Gallagher | 2.9114 | +0.0159 | 2.9273 |
| 17 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Rick Ross | Robert Gannon / Roger Thurman | 2.9273 | -0.0040 | 2.9233 |
| 18 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Roger Thurman | Maurice Finnegan / Ken Gallagher | 2.9233 | +0.0019 | 2.9252 |
| 19 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Robert Gannon | Maurice Finnegan / Roger Thurman | 2.9252 | -0.0157 | 2.9095 |
| 20 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Ken Gallagher | Maurice Finnegan / Rick Ross | 2.9095 | +0.0092 | 2.9187 |
| 21 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-2 | Danny Landry | Maurice Finnegan / Rick Ross | 2.9187 | +0.0018 | 2.9205 |
| 22 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Maurice Finnegan | Danny Landry / Rick Ross | 2.9205 | +0.0075 | 2.9280 |
| 23 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Rick Ross | Danny Landry / Maurice Finnegan | 2.9280 | +0.0138 | 2.9418 |
| 24 | 2026-09-03 Thursday Men's Ladder League - Summer 2026 |
Loss | 6-11 | Rick Ross | Danny Landry / Maurice Finnegan | 2.9418 | -0.0069 | 2.9349 |
| 25 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Rick Ross | Ken Gallagher / Mark Gamrat | 2.9349 | +0.0017 | 2.9366 |
| 26 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Ken Gallagher | Rick Ross / Mark Gamrat | 2.9366 | +0.0021 | 2.9387 |
| 27 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | Mark Gamrat | Rick Ross / Ken Gallagher | 2.9387 | +0.0129 | 2.9516 |
| 28 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Mark Gamrat | Rick Ross / Ken Gallagher | 2.9516 | +0.0122 | 2.9638 |
| 29 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Gabriel Coss | Kevin Frasz / Robert Gannon | 2.9638 | -0.0098 | 2.9540 |
| 30 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Robert Gannon | Gabriel Coss / Rick Ross | 2.9540 | +0.0024 | 2.9564 |
| 31 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 6-11 | Rick Ross | Kevin Frasz / Gabriel Coss | 2.9564 | -0.0024 | 2.9540 |
| 32 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Kevin Frasz | Robert Gannon / Rick Ross | 2.9540 | +0.0023 | 2.9563 |
| 33 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Rick Ross | Ken Gallagher / Mark Gamrat | 2.9563 | +0.0019 | 2.9582 |
| 34 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Louis Colella | Rick Ross / Ken Gallagher | 2.9582 | -0.0076 | 2.9506 |
| 35 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Ken Gallagher | Mark Gamrat / Louis Colella | 2.9506 | +0.0011 | 2.9517 |
| 36 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Mark Gamrat | Rick Ross / Louis Colella | 2.9517 | +0.0051 | 2.9568 |
| 37 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-10 | Adrian Marchetti | Gabriel Coss / John Jederlinic | 2.9568 | +0.0129 | 2.9697 |
| 38 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-8 | Mark Gamrat | John Jederlinic / Adrian Marchetti | 2.9697 | +0.0181 | 2.9878 |
| 39 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-9 | John Jederlinic | Gabriel Coss / Mark Gamrat | 2.9878 | +0.0010 | 2.9888 |
| 40 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-1 | Gabriel Coss | Adrian Marchetti / Mark Gamrat | 2.9888 | +0.0005 | 2.9893 |
| 41 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Loss | 10-11 | Ronnie Halcomb | Ray Kopja / Jeffrey Buxbaum | 2.9893 | -0.0065 | 2.9828 |
| 42 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Loss | 2-11 | Ray Kopja | Mark Hayward / Gabriel Coss | 2.9828 | -0.0093 | 2.9735 |
| 43 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Win | 11-8 | Jeffrey Buxbaum | Ronnie Halcomb / Gabriel Coss | 2.9735 | +0.0071 | 2.9806 |
| 44 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Win | 11-8 | Mark Hayward | Ronnie Halcomb / Ray Kopja | 2.9806 | +0.0059 | 2.9865 |
| 45 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Loss | 7-11 | Gabriel Coss | Bruce Edwards / Roger Thurman | 2.9865 | -0.0116 | 2.9749 |
| 46 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Win | 11-9 | Roger Thurman | Gabriel Coss / Bruce Edwards | 2.9749 | +0.0104 | 2.9853 |
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 | 2.9363 | 2.0878 | +0.8485 | +0.0002 |
| 2 | 2.3316 | 2.3118 | -0.0199 | -0.0106 |
| 3 | 2.3317 | 2.9074 | +0.5757 | -0.0007 |
| 4 | 2.8675 | 2.3745 | +0.4930 | +0.0011 |
| 5 | 2.7198 | 2.2132 | +0.5066 | +0.0010 |
| 6 | 2.3227 | 2.5517 | +0.2290 | -0.0042 |
| 7 | 2.6198 | 2.0827 | +0.5371 | +0.0009 |
| 8 | 2.3272 | 2.2540 | +0.0732 | +0.0079 |
| 9 | 2.6332 | 2.2508 | +0.3824 | +0.0020 |
| 10 | 2.3283 | 2.2252 | +0.1031 | +0.0071 |
| 11 | 2.3306 | 2.2481 | +0.0825 | +0.0077 |
| 12 | 2.6889 | 2.2176 | +0.4714 | +0.0012 |
| 13 | 2.8831 | 2.4677 | +0.4154 | +0.0017 |
| 14 | 2.5825 | 2.2226 | +0.3599 | +0.0022 |
| 15 | 2.6335 | 2.3284 | +0.3051 | +0.0029 |
| 16 | 2.3360 | 2.5734 | -0.2374 | +0.0159 |
| 17 | 2.6423 | 2.8809 | +0.2385 | -0.0040 |
| 18 | 2.8807 | 2.4917 | +0.3890 | +0.0019 |
| 19 | 2.9332 | 2.7076 | -0.2256 | -0.0157 |
| 20 | 2.5769 | 2.5495 | +0.0274 | +0.0092 |
| 21 | 2.9420 | 2.5403 | +0.4017 | +0.0018 |
| 22 | 2.7311 | 2.6429 | +0.0882 | +0.0075 |
| 23 | 2.6166 | 2.7574 | -0.1407 | +0.0138 |
| 24 | 2.6304 | 2.7436 | +0.1131 | -0.0069 |
| 25 | 2.6235 | 2.2068 | +0.4168 | +0.0017 |
| 26 | 2.5902 | 2.2201 | +0.3702 | +0.0021 |
| 27 | 2.3527 | 2.4576 | -0.1050 | +0.0129 |
| 28 | 2.3656 | 2.4447 | -0.0792 | +0.0122 |
| 29 | 2.9543 | 2.9606 | +0.0063 | -0.0098 |
| 30 | 2.9556 | 2.6074 | +0.3482 | +0.0024 |
| 31 | 2.6086 | 2.9567 | +0.3482 | -0.0024 |
| 32 | 2.9667 | 2.6093 | +0.3574 | +0.0023 |
| 33 | 2.6053 | 2.2143 | +0.3910 | +0.0019 |
| 34 | 2.3417 | 2.4253 | +0.0836 | -0.0076 |
| 35 | 2.5761 | 2.0890 | +0.4871 | +0.0011 |
| 36 | 2.3783 | 2.1901 | +0.1881 | +0.0051 |
| 37 | 2.7994 | 2.9025 | -0.1030 | +0.0129 |
| 38 | 2.3872 | 2.7831 | -0.3958 | +0.0181 |
| 39 | 2.8941 | 2.3881 | +0.5061 | +0.0010 |
| 40 | 2.9472 | 2.3263 | +0.6208 | +0.0005 |
| 41 | 2.9058 | 3.0334 | +0.1276 | -0.0065 |
| 42 | 2.9985 | 3.0231 | +0.0246 | -0.0093 |
| 43 | 2.9938 | 2.8905 | +0.1033 | +0.0071 |
| 44 | 3.0671 | 2.9140 | +0.1531 | +0.0059 |
| 45 | 2.9388 | 2.8814 | -0.0575 | -0.0116 |
| 46 | 2.9039 | 2.9163 | -0.0124 | +0.0104 |
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 +0.8485 -> computed delta +0.0002; 2.8910 +0.0002 = 2.8912