Initial VIPR
3.3190
Registry seed
Current VIPR
3.3495
After latest rated game
Net Movement
+0.0305
Current minus initial
Record
14-9
61% win rate · 23 rated games
Storyline
David Roman entered VIPR with an initial registry rating of 3.3190. Across 23 rated doubles games, the player went 14-9 and moved +0.0305, finishing at 3.3495.
Why It Moved
AI-generated explanation: The 14-9 record produced +0.1096 from wins and -0.0791 from losses, for a net move of +0.0305. The biggest single-game impact was -0.0176 against Joel Lancaster as partner and Jerry Johnson / Ron Ahart as opponents. In game #16 on 2026-08-27, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.4961 vs opponent team 3.1489.
Partner Chemistry
Partnership patterns are starting to emerge.
David's most common partner signals so far: Jerry Johnson (3-0, 100%), Roy Strasburg (2-1, 67%), Gregory Kerr (1-1, 50%), Mathis Hediger (1-1, 50%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
David has faced Roy Strasburg 6 times - record: 4-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-09 | 3-1 | 3.3190 | 3.3360 | +0.0170 |
| 2026-07-16 | 3-1 | 3.3360 | 3.3473 | +0.0113 |
| 2026-08-13 | 3-1 | 3.3473 | 3.3607 | +0.0134 |
| 2026-08-20 | 1-2 | 3.3607 | 3.3634 | +0.0027 |
| 2026-08-27 | 1-3 | 3.3634 | 3.3423 | -0.0211 |
| 2026-09-03 | 3-1 | 3.3423 | 3.3495 | +0.0072 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-09 | Loss | 3-11 | Mike Long | Rusty Bateman / Mathis Hediger | 3.3190 | -0.0050 | 3.3140 |
| 2 | 2026-07-09 | Win | 11-6 | Mathis Hediger | Mike Long / Jerry Johnson | 3.3140 | +0.0041 | 3.3181 |
| 3 | 2026-07-09 | Win | 11-8 | Jerry Johnson | Rusty Bateman / Mike Long | 3.3181 | +0.0113 | 3.3294 |
| 4 | 2026-07-09 | Win | 11-10 | Rusty Bateman | Mathis Hediger / Jerry Johnson | 3.3294 | +0.0066 | 3.3360 |
| 5 | 2026-07-16 | Win | 11-9 | Charles S Nichols | Ron Ahart / John Kasberger | 3.3360 | +0.0064 | 3.3424 |
| 6 | 2026-07-16 | Loss | 5-11 | Gregory Kerr | Charles S Nichols / Ron Ahart | 3.3424 | -0.0060 | 3.3364 |
| 7 | 2026-07-16 | Win | 11-7 | Ron Ahart | John Kasberger / Gregory Kerr | 3.3364 | +0.0041 | 3.3405 |
| 8 | 2026-07-16 | Win | 11-3 | John Kasberger | Charles S Nichols / Gregory Kerr | 3.3405 | +0.0068 | 3.3473 |
| 9 | 2026-08-13 | Win | 11-9 | Roy Strasburg | Eric Jones / Jerry Johnson | 3.3473 | +0.0052 | 3.3525 |
| 10 | 2026-08-13 | Win | 11-10 | Gerard Sorrentino | Roy Strasburg / Eric Jones | 3.3525 | +0.0099 | 3.3624 |
| 11 | 2026-08-13 | Loss | 10-11 | Eric Jones | Jerry Johnson / Gerard Sorrentino | 3.3624 | -0.0136 | 3.3488 |
| 12 | 2026-08-13 | Win | 11-3 | Jerry Johnson | Roy Strasburg / Gerard Sorrentino | 3.3488 | +0.0119 | 3.3607 |
| 13 | 2026-08-20 | Win | 11-9 | Mike Long | Mathis Hediger / Kenneth Enos | 3.3607 | +0.0165 | 3.3772 |
| 14 | 2026-08-20 | Loss | 6-11 | Mathis Hediger | Jim Toth / Kenneth Enos | 3.3772 | -0.0068 | 3.3704 |
| 15 | 2026-08-20 | Loss | 2-11 | Kenneth Enos | Jim Toth / Mathis Hediger | 3.3704 | -0.0070 | 3.3634 |
| 16 | 2026-08-27 | Loss | 8-11 | Joel Lancaster | Jerry Johnson / Ron Ahart | 3.3634 | -0.0176 | 3.3458 |
| 17 | 2026-08-27 | Loss | 2-11 | Roy Strasburg | Joel Lancaster / Jerry Johnson | 3.3458 | -0.0092 | 3.3366 |
| 18 | 2026-08-27 | Win | 11-10 | Jerry Johnson | Ron Ahart / Roy Strasburg | 3.3366 | +0.0117 | 3.3483 |
| 19 | 2026-08-27 | Loss | 2-11 | Ron Ahart | Joel Lancaster / Roy Strasburg | 3.3483 | -0.0060 | 3.3423 |
| 20 | 2026-09-03 | Win | 11-3 | Roy Strasburg | Gregory Kerr / Robert Gannon | 3.3423 | +0.0027 | 3.3450 |
| 21 | 2026-09-03 | Loss | 7-11 | Roger Thurman | Roy Strasburg / Gregory Kerr | 3.3450 | -0.0079 | 3.3371 |
| 22 | 2026-09-03 | Win | 11-4 | Gregory Kerr | Robert Gannon / Roger Thurman | 3.3371 | +0.0040 | 3.3411 |
| 23 | 2026-09-03 | Win | 11-8 | Robert Gannon | Roy Strasburg / Roger Thurman | 3.3411 | +0.0084 | 3.3495 |
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 | 3.1976 | 3.3873 | +0.1897 | -0.0050 |
| 2 | 3.3538 | 3.1195 | +0.2343 | +0.0041 |
| 3 | 3.1637 | 3.2097 | -0.0460 | +0.0113 |
| 4 | 3.3353 | 3.2141 | +0.1212 | +0.0066 |
| 5 | 3.2863 | 3.1571 | +0.1292 | +0.0064 |
| 6 | 3.0953 | 3.2413 | +0.1460 | -0.0060 |
| 7 | 3.2628 | 3.0253 | +0.2376 | +0.0041 |
| 8 | 3.1853 | 3.0709 | +0.1144 | +0.0068 |
| 9 | 3.3190 | 3.1351 | +0.1839 | +0.0052 |
| 10 | 3.2435 | 3.2416 | +0.0019 | +0.0099 |
| 11 | 3.2526 | 3.1236 | -0.1290 | -0.0136 |
| 12 | 3.1758 | 3.2421 | -0.0663 | +0.0119 |
| 13 | 3.2177 | 3.4848 | -0.2671 | +0.0165 |
| 14 | 3.4040 | 3.5179 | +0.1139 | -0.0068 |
| 15 | 3.4031 | 3.5109 | +0.1079 | -0.0070 |
| 16 | 3.4961 | 3.1489 | -0.3472 | -0.0176 |
| 17 | 3.2976 | 3.3270 | +0.0293 | -0.0092 |
| 18 | 3.1967 | 3.2566 | -0.0599 | +0.0117 |
| 19 | 3.2726 | 3.4197 | +0.1471 | -0.0060 |
| 20 | 3.2862 | 2.9611 | +0.3250 | +0.0027 |
| 21 | 3.0210 | 3.0966 | +0.0755 | -0.0079 |
| 22 | 3.1278 | 2.8880 | +0.2398 | +0.0040 |
| 23 | 3.0436 | 2.9870 | +0.0566 | +0.0084 |
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 +0.1897 -> computed delta -0.0050; 3.3190 -0.0050 = 3.3140