Initial VIPR
3.4320
Registry seed
Current VIPR
3.3743
After latest rated game
Net Movement
-0.0577
Current minus initial
Record
2-6
25% win rate · 8 rated games
Storyline
John Kaufman entered VIPR with an initial registry rating of 3.4320. Across 8 rated doubles games, the player went 2-6 and moved -0.0577, finishing at 3.3743.
Why It Moved
AI-generated explanation: The 2-6 record produced +0.0087 from wins and -0.0664 from losses, for a net move of -0.0577. The biggest single-game impact was -0.0163 against Rusty Bateman as partner and Kenneth Enos / Brian Leonard as opponents. In game #3 on 2026-08-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.3776 vs opponent team 3.1222.
Partner Chemistry
Partnership patterns are starting to emerge.
John's most common partner signals so far: Roy Strasburg (1-1, 50%), Ken Luthy (1-0, 100%), Brian Leonard (0-1, 0%), Jerry Johnson (0-1, 0%). 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 Jerry Johnson 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-08-13 | 1-3 | 3.4320 | 3.4037 | -0.0283 |
| 2026-10-01 | 1-3 | 3.4037 | 3.3743 | -0.0294 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Loss | 4-11 | Brian Leonard | Kenneth Enos / Ken Luthy | 3.4320 | -0.0023 | 3.4297 |
| 2 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Ken Luthy | Brian Leonard / Rusty Bateman | 3.4297 | +0.0023 | 3.4320 |
| 3 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Rusty Bateman | Kenneth Enos / Brian Leonard | 3.4320 | -0.0163 | 3.4157 |
| 4 | 2026-08-13 Thursday Men's Ladder League - Summer 2026 |
Loss | 5-11 | Kenneth Enos | Ken Luthy / Rusty Bateman | 3.4157 | -0.0120 | 3.4037 |
| 5 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-6 | Roy Strasburg | Ron Ahart / Jerry Johnson | 3.4037 | +0.0064 | 3.4101 |
| 6 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 6-11 | Ron Ahart | Roy Strasburg / Jerry Johnson | 3.4101 | -0.0125 | 3.3976 |
| 7 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 9-11 | Jerry Johnson | Roy Strasburg / Ron Ahart | 3.3976 | -0.0092 | 3.3884 |
| 8 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 4-11 | Roy Strasburg | Ron Ahart / Jerry Johnson | 3.3884 | -0.0141 | 3.3743 |
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 | 3.0965 | 3.4494 | +0.3529 | -0.0023 |
| 2 | 3.4290 | 3.0774 | +0.3516 | +0.0023 |
| 3 | 3.3776 | 3.1222 | -0.2554 | -0.0163 |
| 4 | 3.4424 | 3.3711 | -0.0713 | -0.0120 |
| 5 | 3.3424 | 3.2101 | +0.1323 | +0.0064 |
| 6 | 3.3096 | 3.2205 | -0.0891 | -0.0125 |
| 7 | 3.2518 | 3.2784 | +0.0266 | -0.0092 |
| 8 | 3.3575 | 3.2051 | -0.1525 | -0.0141 |
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 +0.3529 -> computed delta -0.0023; 3.4320 -0.0023 = 3.4297