Storyline
Joe Spano entered VIPR with an initial registry rating of 4.0650. Across 16 rated doubles games, the player went 11-5 and moved +0.0151, finishing at 4.0801.
Why It Moved
AI-generated explanation: The 11-5 record produced +0.0739 from wins and -0.0588 from losses, for a net move of +0.0151. The biggest single-game impact was -0.0197 against Frank Pindulic as partner and Ramon Jimenez / George Carroll as opponents. In game #9 on 2026-07-16, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.8558 vs opponent team 3.1459.
Partnership patterns are starting to emerge.
Joe's most common partner signals so far: Chris Donahue (1-0, 100%), Christopher Burns (1-0, 100%), Craig Narod (1-0, 100%), George Carroll (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Joe is currently on a 2-game winning streak in rated VIPR games.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 2-2 | 4.0650 | 4.0606 | -0.0044 |
| 2026-07-09 | 3-1 | 4.0606 | 4.0628 | +0.0022 |
| 2026-07-16 | 3-1 | 4.0628 | 4.0685 | +0.0057 |
| 2026-07-23 | 3-1 | 4.0685 | 4.0801 | +0.0116 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Loss | 0-11 | Jeff Fink | Martin Brady / Craig Narod | 4.0650 | -0.0127 | 4.0523 |
| 2 | 2026-07-02 | Win | 11-9 | Craig Narod | Martin Brady / Fred Veenstra | 4.0523 | +0.0068 | 4.0591 |
| 3 | 2026-07-02 | Win | 11-9 | Martin Brady | Jeff Fink / Fred Veenstra | 4.0591 | +0.0088 | 4.0679 |
| 4 | 2026-07-02 | Loss | 3-11 | Fred Veenstra | Jeff Fink / Craig Narod | 4.0679 | -0.0073 | 4.0606 |
| 5 | 2026-07-09 | Loss | 8-11 | John Patton | Kevin Geraty / Joel Lancaster | 4.0606 | -0.0073 | 4.0533 |
| 6 | 2026-07-09 | Win | 11-4 | Sunil Sadhwani | Joel Lancaster / John Patton | 4.0533 | +0.0063 | 4.0596 |
| 7 | 2026-07-09 | Win | 11-5 | Joel Lancaster | Kevin Geraty / Sunil Sadhwani | 4.0596 | +0.0012 | 4.0608 |
| 8 | 2026-07-09 | Win | 11-4 | Kevin Geraty | John Patton / Sunil Sadhwani | 4.0608 | +0.0020 | 4.0628 |
| 9 | 2026-07-16 | Loss | 9-11 | Frank Pindulic | Ramon Jimenez / George Carroll | 4.0628 | -0.0197 | 4.0431 |
| 10 | 2026-07-16 | Win | 11-10 | George Carroll | Ramon Jimenez / Joseph DeVito | 4.0431 | +0.0005 | 4.0436 |
| 11 | 2026-07-16 | Win | 11-2 | Ramon Jimenez | Frank Pindulic / Joseph DeVito | 4.0436 | +0.0189 | 4.0625 |
| 12 | 2026-07-16 | Win | 11-5 | Joseph DeVito | Frank Pindulic / George Carroll | 4.0625 | +0.0060 | 4.0685 |
| 13 | 2026-07-23 | Win | 11-3 | Chris Donahue | Christopher Burns / Matt Dame | 4.0685 | +0.0107 | 4.0792 |
| 14 | 2026-07-23 | Loss | 2-11 | John Ressler | Chris Donahue / Christopher Burns | 4.0792 | -0.0118 | 4.0674 |
| 15 | 2026-07-23 | Win | 11-6 | Christopher Burns | Matt Dame / John Ressler | 4.0674 | +0.0058 | 4.0732 |
| 16 | 2026-07-23 | Win | 11-7 | Matt Dame | Chris Donahue / John Ressler | 4.0732 | +0.0069 | 4.0801 |
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 | 4.0692 | 3.9729 | -0.0963 | -0.0127 |
| 2 | 4.0365 | 3.9214 | +0.1151 | +0.0068 |
| 3 | 3.9897 | 3.9465 | +0.0431 | +0.0088 |
| 4 | 3.9491 | 4.0465 | +0.0974 | -0.0073 |
| 5 | 3.5155 | 3.6099 | +0.0944 | -0.0073 |
| 6 | 3.5788 | 3.4442 | +0.1346 | +0.0063 |
| 7 | 3.9014 | 3.4237 | +0.4777 | +0.0012 |
| 8 | 3.6827 | 3.3020 | +0.3807 | +0.0020 |
| 9 | 3.8558 | 3.1459 | -0.7099 | -0.0197 |
| 10 | 3.8157 | 3.1920 | +0.6237 | +0.0005 |
| 11 | 3.2629 | 3.7648 | -0.5019 | +0.0189 |
| 12 | 3.8699 | 3.7220 | +0.1480 | +0.0060 |
| 13 | 3.8636 | 3.8886 | -0.0250 | +0.0107 |
| 14 | 3.9026 | 3.8392 | -0.0634 | -0.0118 |
| 15 | 3.9826 | 3.8287 | +0.1538 | +0.0058 |
| 16 | 3.9202 | 3.8096 | +0.1107 | +0.0069 |
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 -0.0963 -> computed delta -0.0127; 4.0650 -0.0127 = 4.0523