Initial VIPR
3.1220
Registry seed
Current VIPR
3.0963
After latest rated game
Net Movement
-0.0257
Current minus initial
Record
15-17
47% win rate · 32 rated games
Storyline
John Kasberger entered VIPR with an initial registry rating of 3.1220. Across 32 rated doubles games, the player went 15-17 and moved -0.0257, finishing at 3.0963.
Why It Moved
AI-generated explanation: The 15-17 record produced +0.1335 from wins and -0.1592 from losses, for a net move of -0.0257. The biggest single-game impact was -0.0166 against William Brier as partner and Kevin Frasz / Robert Gannon as opponents. In game #13 on 2026-08-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.2236 vs opponent team 2.9462.
Partner Chemistry
Partnership patterns are starting to emerge.
John's most common partner signals so far: Gregory Kerr (2-3, 40%), Eric Jones (2-2, 50%), Ray Kopja (1-3, 25%), Gerard Sorrentino (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
John has faced Eric Jones 8 times - record: 3-5. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-16 | 2-2 | 3.1220 | 3.1256 | +0.0036 |
| 2026-07-23 | 3-1 | 3.1256 | 3.1371 | +0.0115 |
| 2026-08-06 | 1-3 | 3.1371 | 3.1224 | -0.0147 |
| 2026-08-13 | 2-2 | 3.1224 | 3.1186 | -0.0038 |
| 2026-08-20 | 2-2 | 3.1186 | 3.1119 | -0.0067 |
| 2026-08-27 | 2-2 | 3.1119 | 3.1139 | +0.0020 |
| 2026-09-10 | 2-2 | 3.1139 | 3.1163 | +0.0024 |
| 2026-09-17 | 1-3 | 3.1163 | 3.0963 | -0.0200 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | Ron Ahart | David Roman / Charles S Nichols | 3.1220 | -0.0064 | 3.1156 |
| 2 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Charles S Nichols | Ron Ahart / Gregory Kerr | 3.1156 | +0.0073 | 3.1229 |
| 3 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Gregory Kerr | David Roman / Ron Ahart | 3.1229 | -0.0041 | 3.1188 |
| 4 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | David Roman | Charles S Nichols / Gregory Kerr | 3.1188 | +0.0068 | 3.1256 |
| 5 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Eric Jones | Ray Kopja / Robert Gannon | 3.1256 | +0.0046 | 3.1302 |
| 6 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Robert Gannon | Ray Kopja / Roger Thurman | 3.1302 | +0.0090 | 3.1392 |
| 7 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Ray Kopja | Eric Jones / Roger Thurman | 3.1392 | +0.0060 | 3.1452 |
| 8 | 2026-07-23 Thursday Men's Ladder League - Summer 2026 |
Loss | 3-11 | Roger Thurman | Eric Jones / Robert Gannon | 3.1452 | -0.0081 | 3.1371 |
| 9 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Win | 11-10 | Mike Long | Charles S Nichols / Eric Jones | 3.1371 | +0.0132 | 3.1503 |
| 10 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Loss | 3-11 | Roy Strasburg | Charles S Nichols / Mike Long | 3.1503 | -0.0103 | 3.1400 |
| 11 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Eric Jones | Roy Strasburg / Mike Long | 3.1400 | -0.0091 | 3.1309 |
| 12 | 2026-08-06 Thursday Men's Ladder League - Summer 2026 |
Loss | 4-11 | Charles S Nichols | Roy Strasburg / Eric Jones | 3.1309 | -0.0085 | 3.1224 |
| 13 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | William Brier | Kevin Frasz / Robert Gannon | 3.1224 | -0.0166 | 3.1058 |
| 14 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Roger Thurman | William Brier / Kevin Frasz | 3.1058 | +0.0157 | 3.1215 |
| 15 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | Kevin Frasz | Robert Gannon / Roger Thurman | 3.1215 | -0.0145 | 3.1070 |
| 16 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Robert Gannon | William Brier / Roger Thurman | 3.1070 | +0.0116 | 3.1186 |
| 17 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Kevin Frasz | Robert Gannon / Gregory Kerr | 3.1186 | -0.0124 | 3.1062 |
| 18 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Robert Gannon | Kevin Frasz / Gregory Kerr | 3.1062 | -0.0102 | 3.0960 |
| 19 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Gregory Kerr | Kevin Frasz / Robert Gannon | 3.0960 | +0.0082 | 3.1042 |
| 20 | 2026-08-20 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Gregory Kerr | Kevin Frasz / Robert Gannon | 3.1042 | +0.0077 | 3.1119 |
| 21 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Ray Kopja | Michael Sands / Gerard Sorrentino | 3.1119 | -0.0067 | 3.1052 |
| 22 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Kevin Frasz | Gerard Sorrentino / Ray Kopja | 3.1052 | +0.0125 | 3.1177 |
| 23 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Gerard Sorrentino | Ray Kopja / Kevin Frasz | 3.1177 | +0.0067 | 3.1244 |
| 24 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 6-11 | Ray Kopja | Gerard Sorrentino / Kevin Frasz | 3.1244 | -0.0105 | 3.1139 |
| 25 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | Gerard Sorrentino | Roy Strasburg / Eric Jones | 3.1139 | -0.0082 | 3.1057 |
| 26 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Eric Jones | Gerard Sorrentino / Gregory Kerr | 3.1057 | +0.0088 | 3.1145 |
| 27 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 1-11 | Gregory Kerr | Roy Strasburg / Gerard Sorrentino | 3.1145 | -0.0061 | 3.1084 |
| 28 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Roy Strasburg | Eric Jones / Gregory Kerr | 3.1084 | +0.0079 | 3.1163 |
| 29 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 3-11 | Ray Kopja | Gerard Sorrentino / Eric Jones | 3.1163 | -0.0066 | 3.1097 |
| 30 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Gregory Kerr | Eric Jones / Ray Kopja | 3.1097 | -0.0093 | 3.1004 |
| 31 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Eric Jones | Gerard Sorrentino / Gregory Kerr | 3.1004 | -0.0116 | 3.0888 |
| 32 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-2 | Gerard Sorrentino | Ray Kopja / Gregory Kerr | 3.0888 | +0.0075 | 3.0963 |
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 | 3.1571 | 3.2863 | +0.1292 | -0.0064 |
| 2 | 3.1623 | 3.0675 | +0.0949 | +0.0073 |
| 3 | 3.0253 | 3.2628 | +0.2376 | -0.0041 |
| 4 | 3.1853 | 3.0709 | +0.1144 | +0.0068 |
| 5 | 3.1605 | 2.9514 | +0.2091 | +0.0046 |
| 6 | 2.9556 | 2.9193 | +0.0363 | +0.0090 |
| 7 | 3.1059 | 2.9568 | +0.1492 | +0.0060 |
| 8 | 2.9340 | 3.0018 | +0.0678 | -0.0081 |
| 9 | 3.1303 | 3.2470 | -0.1167 | +0.0132 |
| 10 | 3.1951 | 3.1837 | -0.0113 | -0.0103 |
| 11 | 3.1616 | 3.1924 | +0.0308 | -0.0091 |
| 12 | 3.1800 | 3.2316 | +0.0515 | -0.0085 |
| 13 | 3.2236 | 2.9462 | -0.2774 | -0.0166 |
| 14 | 2.9304 | 3.1569 | -0.2264 | +0.0157 |
| 15 | 3.0539 | 2.8860 | -0.1679 | -0.0145 |
| 16 | 2.9869 | 3.0436 | -0.0567 | +0.0116 |
| 17 | 3.0429 | 2.9572 | -0.0856 | -0.0124 |
| 18 | 3.0034 | 2.9949 | -0.0086 | -0.0102 |
| 19 | 3.0314 | 2.9669 | +0.0645 | +0.0082 |
| 20 | 3.0396 | 2.9587 | +0.0809 | +0.0077 |
| 21 | 3.0901 | 3.2078 | +0.1176 | -0.0067 |
| 22 | 3.0262 | 3.1150 | -0.0888 | +0.0125 |
| 23 | 3.1418 | 3.0218 | +0.1199 | +0.0067 |
| 24 | 3.0757 | 3.0601 | -0.0157 | -0.0105 |
| 25 | 3.1443 | 3.2062 | +0.0619 | -0.0082 |
| 26 | 3.1326 | 3.0916 | +0.0410 | +0.0088 |
| 27 | 3.0666 | 3.2114 | +0.1448 | -0.0061 |
| 28 | 3.1593 | 3.0854 | +0.0740 | +0.0079 |
| 29 | 3.0635 | 3.1858 | +0.1222 | -0.0066 |
| 30 | 3.0554 | 3.0810 | +0.0256 | -0.0093 |
| 31 | 3.1300 | 3.0754 | -0.0547 | -0.0116 |
| 32 | 3.1251 | 3.0372 | +0.0879 | +0.0075 |
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 +0.1292 -> computed delta -0.0064; 3.1220 -0.0064 = 3.1156