Initial VIPR
3.8540
Registry seed
Current VIPR
3.7847
After latest rated game
Net Movement
-0.0693
Current minus initial
Record
20-16
56% win rate · 36 rated games
Storyline
Joel Lancaster entered VIPR with an initial registry rating of 3.8540. Across 36 rated doubles games, the player went 20-16 and moved -0.0693, finishing at 3.7847.
Why It Moved
AI-generated explanation: The record was positive, but the rating dipped because the 20 wins added +0.1330 while the 16 loss(es) gave back -0.2023. The biggest single-game impact was +0.0180 against John Patton as partner and Kevin Geraty / Dan Civitarese as opponents. In game #27 on 2026-09-24, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.4230 vs opponent team 3.8090.
Partner Chemistry
Partnership patterns are starting to emerge.
Joel's most common partner signals so far: John Patton (3-1, 75%), Kevin Geraty (3-1, 75%), Jerry Johnson (2-0, 100%), Kenneth Enos (2-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Joel has faced John Patton 8 times - record: 6-2. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 1-3 | 3.8540 | 3.8326 | -0.0214 |
| 2026-07-09 | 3-1 | 3.8326 | 3.8402 | +0.0076 |
| 2026-07-16 | 1-3 | 3.8402 | 3.8056 | -0.0346 |
| 2026-08-27 | 3-1 | 3.8056 | 3.8073 | +0.0017 |
| 2026-09-10 | 1-3 | 3.8073 | 3.7741 | -0.0332 |
| 2026-09-17 | 4-0 | 3.7741 | 3.7958 | +0.0217 |
| 2026-09-24 | 3-1 | 3.7958 | 3.8073 | +0.0115 |
| 2026-10-15 | 3-1 | 3.8073 | 3.8139 | +0.0066 |
| 2026-10-22 | 1-3 | 3.8139 | 3.7847 | -0.0292 |
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 | 11-7 | Brian Wachtel | Pete Nikolakakis / Michael Marx | 3.8540 | +0.0087 | 3.8627 |
| 2 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Loss | 0-11 | Michael Marx | Pete Nikolakakis / Matt Dame | 3.8627 | -0.0092 | 3.8535 |
| 3 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | Pete Nikolakakis | Brian Wachtel / Matt Dame | 3.8535 | -0.0102 | 3.8433 |
| 4 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Matt Dame | Brian Wachtel / Michael Marx | 3.8433 | -0.0107 | 3.8326 |
| 5 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Kevin Geraty | Joe Spano / John Patton | 3.8326 | +0.0073 | 3.8399 |
| 6 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 4-11 | John Patton | Joe Spano / Sunil Sadhwani | 3.8399 | -0.0063 | 3.8336 |
| 7 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Joe Spano | Kevin Geraty / Sunil Sadhwani | 3.8336 | +0.0012 | 3.8348 |
| 8 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Sunil Sadhwani | Kevin Geraty / John Patton | 3.8348 | +0.0054 | 3.8402 |
| 9 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Kevin Geraty | Robert McCollough / Sunil Sadhwani | 3.8402 | +0.0057 | 3.8459 |
| 10 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 3-11 | Mathis Hediger | Sunil Sadhwani / Kevin Geraty | 3.8459 | -0.0140 | 3.8319 |
| 11 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 1-11 | Sunil Sadhwani | Robert McCollough / Mathis Hediger | 3.8319 | -0.0110 | 3.8209 |
| 12 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 4-11 | Robert McCollough | Kevin Geraty / Mathis Hediger | 3.8209 | -0.0153 | 3.8056 |
| 13 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | David Roman | Jerry Johnson / Ron Ahart | 3.8056 | -0.0176 | 3.7880 |
| 14 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | Ron Ahart | Jerry Johnson / Roy Strasburg | 3.7880 | +0.0041 | 3.7921 |
| 15 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-2 | Jerry Johnson | David Roman / Roy Strasburg | 3.7921 | +0.0092 | 3.8013 |
| 16 | 2026-08-27 Thursday Men's Ladder League - Summer 2026 |
Win | 11-2 | Roy Strasburg | David Roman / Ron Ahart | 3.8013 | +0.0060 | 3.8073 |
| 17 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Ernest Ferguson | Mike Long / Ken Lomando | 3.8073 | -0.0168 | 3.7905 |
| 18 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 6-11 | Ken Lomando | Mike Long / Kenneth Enos | 3.7905 | -0.0176 | 3.7729 |
| 19 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Loss | 0-11 | Mike Long | Ernest Ferguson / Kenneth Enos | 3.7729 | -0.0075 | 3.7654 |
| 20 | 2026-09-10 Thursday Men's Ladder League - Summer 2026 |
Win | 11-9 | Kenneth Enos | Ernest Ferguson / Ken Lomando | 3.7654 | +0.0087 | 3.7741 |
| 21 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | John Patton | Jerry Johnson / Ron Ahart | 3.7741 | +0.0048 | 3.7789 |
| 22 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | Ron Ahart | Jerry Johnson / Rusty Bateman | 3.7789 | +0.0040 | 3.7829 |
| 23 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Jerry Johnson | John Patton / Rusty Bateman | 3.7829 | +0.0081 | 3.7910 |
| 24 | 2026-09-17 Thursday Men's Ladder League - Summer 2026 |
Win | 11-5 | Rusty Bateman | John Patton / Ron Ahart | 3.7910 | +0.0048 | 3.7958 |
| 25 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Win | 11-6 | Dan Civitarese | Kevin Geraty / Edward Gainer | 3.7958 | +0.0018 | 3.7976 |
| 26 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Loss | 3-11 | Edward Gainer | Dan Civitarese / John Patton | 3.7976 | -0.0119 | 3.7857 |
| 27 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | John Patton | Kevin Geraty / Dan Civitarese | 3.7857 | +0.0180 | 3.8037 |
| 28 | 2026-09-24 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Kevin Geraty | Edward Gainer / John Patton | 3.8037 | +0.0036 | 3.8073 |
| 29 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Win | 11-6 | Edward Gainer | Kevin Terhark / Robert McCollough | 3.8073 | +0.0068 | 3.8141 |
| 30 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Loss | 0-11 | Robert McCollough | Kevin Terhark / John Patton | 3.8141 | -0.0160 | 3.7981 |
| 31 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Win | 11-10 | Kevin Terhark | Edward Gainer / John Patton | 3.7981 | +0.0044 | 3.8025 |
| 32 | 2026-10-15 Thursday Men's Ladder League - Fall 2026 |
Win | 11-1 | John Patton | Edward Gainer / Robert McCollough | 3.8025 | +0.0114 | 3.8139 |
| 33 | 2026-10-22 Thursday Men's Ladder League - Fall 2026 |
Loss | 5-11 | David Brown | Kenneth Enos / Kevin Geraty | 3.8139 | -0.0163 | 3.7976 |
| 34 | 2026-10-22 Thursday Men's Ladder League - Fall 2026 |
Loss | 8-11 | Kevin Geraty | David Brown / Glen Yergeau | 3.7976 | -0.0098 | 3.7878 |
| 35 | 2026-10-22 Thursday Men's Ladder League - Fall 2026 |
Loss | 6-11 | Glen Yergeau | Kenneth Enos / David Brown | 3.7878 | -0.0121 | 3.7757 |
| 36 | 2026-10-22 Thursday Men's Ladder League - Fall 2026 |
Win | 11-7 | Kenneth Enos | Kevin Geraty / Glen Yergeau | 3.7757 | +0.0090 | 3.7847 |
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 | 3.8663 | 3.8202 | +0.0461 | +0.0087 |
| 2 | 3.8092 | 3.8386 | +0.0294 | -0.0092 |
| 3 | 3.8613 | 3.8550 | -0.0063 | -0.0102 |
| 4 | 3.8474 | 3.8231 | -0.0243 | -0.0107 |
| 5 | 3.6099 | 3.5155 | +0.0944 | +0.0073 |
| 6 | 3.4442 | 3.5788 | +0.1346 | -0.0063 |
| 7 | 3.9014 | 3.4237 | +0.4777 | +0.0012 |
| 8 | 3.5154 | 3.3432 | +0.1722 | +0.0054 |
| 9 | 3.6141 | 3.4532 | +0.1609 | +0.0057 |
| 10 | 3.5707 | 3.4216 | -0.1491 | -0.0140 |
| 11 | 3.5241 | 3.4899 | -0.0342 | -0.0110 |
| 12 | 3.6805 | 3.4759 | -0.2045 | -0.0153 |
| 13 | 3.4961 | 3.1489 | -0.3472 | -0.0176 |
| 14 | 3.4098 | 3.1765 | +0.2333 | +0.0041 |
| 15 | 3.3270 | 3.2976 | +0.0293 | +0.0092 |
| 16 | 3.4197 | 3.2726 | +0.1471 | +0.0060 |
| 17 | 3.6142 | 3.3252 | -0.2890 | -0.0168 |
| 18 | 3.6545 | 3.3048 | -0.3497 | -0.0176 |
| 19 | 3.4073 | 3.4973 | +0.0900 | -0.0075 |
| 20 | 3.5812 | 3.5371 | +0.0441 | +0.0087 |
| 21 | 3.3942 | 3.1934 | +0.2008 | +0.0048 |
| 22 | 3.4390 | 3.2008 | +0.2382 | +0.0040 |
| 23 | 3.3327 | 3.2644 | +0.0683 | +0.0081 |
| 24 | 3.4532 | 3.2543 | +0.1989 | +0.0048 |
| 25 | 3.9668 | 3.5624 | +0.4044 | +0.0018 |
| 26 | 3.6426 | 3.5761 | -0.0665 | -0.0119 |
| 27 | 3.4230 | 3.8090 | -0.3861 | +0.0180 |
| 28 | 3.6293 | 3.3635 | +0.2658 | +0.0036 |
| 29 | 3.6161 | 3.4996 | +0.1165 | +0.0068 |
| 30 | 3.5919 | 3.3494 | -0.2425 | -0.0160 |
| 31 | 3.5945 | 3.3755 | +0.2189 | +0.0044 |
| 32 | 3.4470 | 3.4952 | -0.0483 | +0.0114 |
| 33 | 3.7656 | 3.5102 | -0.2554 | -0.0163 |
| 34 | 3.6262 | 3.6335 | +0.0073 | -0.0098 |
| 35 | 3.6523 | 3.5788 | -0.0735 | -0.0121 |
| 36 | 3.5960 | 3.5606 | +0.0354 | +0.0090 |
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 +0.0461 -> computed delta +0.0087; 3.8540 +0.0087 = 3.8627