Initial VIPR
3.0240
Registry seed
Current VIPR
3.0421
After latest rated game
Net Movement
+0.0181
Current minus initial
Record
10-10
50% win rate · 20 rated games
Storyline
Gregory Kerr entered VIPR with an initial registry rating of 3.0240. Across 20 rated doubles games, the player went 10-10 and moved +0.0181, finishing at 3.0421.
Why It Moved
AI-generated explanation: The 10-10 record produced +0.0999 from wins and -0.0818 from losses, for a net move of +0.0181. The biggest single-game impact was -0.0155 against Gerard Sorrentino as partner and Robert Gannon / Brian Leonard as opponents. In game #1 on 2026-07-09, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.0780 vs opponent team 2.8630.
Partner Chemistry
Partnership patterns are starting to emerge.
Gregory's most common partner signals so far: John Kasberger (2-1, 67%), Gerard Sorrentino (1-2, 33%), Robert Gannon (1-2, 33%), David Roman (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
Gregory has faced Robert Gannon 8 times - record: 6-2. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-09 | 1-3 | 3.0240 | 2.9967 | -0.0273 |
| 2026-07-16 | 0-4 | 2.9967 | 2.9725 | -0.0242 |
| 2026-08-06 | 2-2 | 2.9725 | 2.9811 | +0.0086 |
| 2026-08-20 | 4-0 | 2.9811 | 3.0196 | +0.0385 |
| 2026-09-03 | 3-1 | 3.0196 | 3.0421 | +0.0225 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-09 | Loss | 5-11 | Gerard Sorrentino | Robert Gannon / Brian Leonard | 3.0240 | -0.0155 | 3.0085 |
| 2 | 2026-07-09 | Win | 11-3 | Brian Leonard | Gerard Sorrentino / Robert Gannon | 3.0085 | +0.0107 | 3.0192 |
| 3 | 2026-07-09 | Loss | 6-11 | Robert Gannon | Gerard Sorrentino / Brian Leonard | 3.0192 | -0.0075 | 3.0117 |
| 4 | 2026-07-09 | Loss | 5-11 | Gerard Sorrentino | Robert Gannon / Brian Leonard | 3.0117 | -0.0150 | 2.9967 |
| 5 | 2026-07-16 | Loss | 6-11 | Ron Ahart | Charles S Nichols / John Kasberger | 2.9967 | -0.0073 | 2.9894 |
| 6 | 2026-07-16 | Loss | 5-11 | David Roman | Charles S Nichols / Ron Ahart | 2.9894 | -0.0060 | 2.9834 |
| 7 | 2026-07-16 | Loss | 7-11 | John Kasberger | David Roman / Ron Ahart | 2.9834 | -0.0041 | 2.9793 |
| 8 | 2026-07-16 | Loss | 3-11 | Charles S Nichols | David Roman / John Kasberger | 2.9793 | -0.0068 | 2.9725 |
| 9 | 2026-08-06 | Loss | 4-11 | Danny Landry | William Brier / Mike Cluck | 2.9725 | -0.0054 | 2.9671 |
| 10 | 2026-08-06 | Win | 11-5 | Gerard Sorrentino | William Brier / Danny Landry | 2.9671 | +0.0136 | 2.9807 |
| 11 | 2026-08-06 | Win | 11-6 | Mike Cluck | Gerard Sorrentino / Danny Landry | 2.9807 | +0.0119 | 2.9926 |
| 12 | 2026-08-06 | Loss | 3-11 | William Brier | Gerard Sorrentino / Mike Cluck | 2.9926 | -0.0115 | 2.9811 |
| 13 | 2026-08-20 | Win | 11-8 | Robert Gannon | John Kasberger / Kevin Frasz | 2.9811 | +0.0124 | 2.9935 |
| 14 | 2026-08-20 | Win | 11-7 | Kevin Frasz | John Kasberger / Robert Gannon | 2.9935 | +0.0102 | 3.0037 |
| 15 | 2026-08-20 | Win | 11-7 | John Kasberger | Kevin Frasz / Robert Gannon | 3.0037 | +0.0082 | 3.0119 |
| 16 | 2026-08-20 | Win | 11-7 | John Kasberger | Kevin Frasz / Robert Gannon | 3.0119 | +0.0077 | 3.0196 |
| 17 | 2026-09-03 | Loss | 3-11 | Robert Gannon | David Roman / Roy Strasburg | 3.0196 | -0.0027 | 3.0169 |
| 18 | 2026-09-03 | Win | 11-7 | Roger Thurman | Roy Strasburg / Robert Gannon | 3.0169 | +0.0133 | 3.0302 |
| 19 | 2026-09-03 | Win | 11-7 | Roy Strasburg | David Roman / Roger Thurman | 3.0302 | +0.0079 | 3.0381 |
| 20 | 2026-09-03 | Win | 11-4 | David Roman | Robert Gannon / Roger Thurman | 3.0381 | +0.0040 | 3.0421 |
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 | 3.0780 | 2.8630 | -0.2150 | -0.0155 |
| 2 | 2.9371 | 2.9631 | -0.0260 | +0.0107 |
| 3 | 2.9048 | 2.9954 | +0.0906 | -0.0075 |
| 4 | 3.0638 | 2.8712 | -0.1926 | -0.0150 |
| 5 | 3.0675 | 3.1623 | +0.0949 | -0.0073 |
| 6 | 3.0953 | 3.2413 | +0.1460 | -0.0060 |
| 7 | 3.0253 | 3.2628 | +0.2376 | -0.0041 |
| 8 | 3.0709 | 3.1853 | +0.1144 | -0.0068 |
| 9 | 2.9889 | 3.1618 | +0.1729 | -0.0054 |
| 10 | 3.0293 | 3.1607 | -0.1314 | +0.0136 |
| 11 | 2.9958 | 3.0622 | -0.0663 | +0.0119 |
| 12 | 3.1362 | 3.0830 | -0.0532 | -0.0115 |
| 13 | 2.9572 | 3.0429 | -0.0856 | +0.0124 |
| 14 | 2.9949 | 3.0034 | -0.0086 | +0.0102 |
| 15 | 3.0314 | 2.9669 | +0.0645 | +0.0082 |
| 16 | 3.0396 | 2.9587 | +0.0809 | +0.0077 |
| 17 | 2.9611 | 3.2862 | +0.3250 | -0.0027 |
| 18 | 2.9133 | 3.0328 | -0.1195 | +0.0133 |
| 19 | 3.0966 | 3.0210 | +0.0755 | +0.0079 |
| 20 | 3.1278 | 2.8880 | +0.2398 | +0.0040 |
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 -0.2150 -> computed delta -0.0155; 3.0240 -0.0155 = 3.0085