Initial VIPR
3.7800
Registry seed
Current VIPR
3.7900
After latest rated game
Net Movement
+0.0100
Current minus initial
Record
8-8
50% win rate · 16 rated games
Storyline
John Hayward entered VIPR with an initial registry rating of 3.7800. Across 16 rated doubles games, the player went 8-8 and moved +0.0100, finishing at 3.7900.
Why It Moved
AI-generated explanation: The 8-8 record produced +0.0858 from wins and -0.0758 from losses, for a net move of +0.0100. The biggest single-game impact was +0.0159 against Chris Donahue as partner and Craig Vogel / Joseph Weber as opponents. In game #5 on 2026-07-09, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.7383 vs opponent team 3.9758.
Partner Chemistry
Partnership patterns are starting to emerge.
John's most common partner signals so far: Matt Dame (2-0, 100%), George Carroll (1-1, 50%), Chris Donahue (1-0, 100%), Frank Pindulic (1-0, 100%). 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 Matt Dame 6 times - record: 2-4. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 3-1 | 3.7800 | 3.7996 | +0.0196 |
| 2026-07-09 | 3-1 | 3.7996 | 3.8219 | +0.0223 |
| 2026-07-16 | 0-4 | 3.8219 | 3.7838 | -0.0381 |
| 2026-10-01 | 2-2 | 3.7838 | 3.7900 | +0.0062 |
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 | George Carroll | Tim Tonguis / Jim Feehan | 3.7800 | +0.0109 | 3.7909 |
| 2 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | Tim Tonguis | Jim Feehan / George Carroll | 3.7909 | +0.0088 | 3.7997 |
| 3 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Win | 11-3 | Jim Feehan | Tim Tonguis / George Carroll | 3.7997 | +0.0094 | 3.8091 |
| 4 | 2026-07-02 Thursday Men's Ladder League - Summer 2026 |
Loss | 9-11 | George Carroll | Tim Tonguis / Jim Feehan | 3.8091 | -0.0095 | 3.7996 |
| 5 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-4 | Chris Donahue | Craig Vogel / Joseph Weber | 3.7996 | +0.0159 | 3.8155 |
| 6 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-7 | Frank Pindulic | Craig Vogel / Matt Dame | 3.8155 | +0.0121 | 3.8276 |
| 7 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Joseph Weber | Craig Vogel / Frank Pindulic | 3.8276 | -0.0141 | 3.8135 |
| 8 | 2026-07-09 Thursday Men's Ladder League - Summer 2026 |
Win | 11-8 | Matt Dame | Chris Donahue / Frank Pindulic | 3.8135 | +0.0084 | 3.8219 |
| 9 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | Craig Vogel | Scott Konkel / Fred Veenstra | 3.8219 | -0.0093 | 3.8126 |
| 10 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 8-11 | Fred Veenstra | Matt Dame / John Ressler | 3.8126 | -0.0100 | 3.8026 |
| 11 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 10-11 | Scott Konkel | Matt Dame / Fred Veenstra | 3.8026 | -0.0099 | 3.7927 |
| 12 | 2026-07-16 Thursday Men's Ladder League - Summer 2026 |
Loss | 7-11 | John Ressler | Matt Dame / Craig Vogel | 3.7927 | -0.0089 | 3.7838 |
| 13 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-0 | Matt Dame | Joe Spano / Pete Nikolakakis | 3.7838 | +0.0115 | 3.7953 |
| 14 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 2-10 | Pete Nikolakakis | Joe Spano / Mark Wu | 3.7953 | -0.0056 | 3.7897 |
| 15 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 10-11 | Joe Spano | Matt Dame / Mark Wu | 3.7897 | -0.0085 | 3.7812 |
| 16 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-4 | Mark Wu | Matt Dame / Pete Nikolakakis | 3.7812 | +0.0088 | 3.7900 |
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 | 3.7359 | 3.7669 | -0.0310 | +0.0109 |
| 2 | 3.7777 | 3.7343 | +0.0435 | +0.0088 |
| 3 | 3.7581 | 3.7376 | +0.0205 | +0.0094 |
| 4 | 3.7395 | 3.7562 | +0.0167 | -0.0095 |
| 5 | 3.7383 | 3.9758 | -0.2375 | +0.0159 |
| 6 | 3.7746 | 3.8500 | -0.0754 | +0.0121 |
| 7 | 3.9402 | 3.7871 | -0.1531 | -0.0141 |
| 8 | 3.8124 | 3.7576 | +0.0548 | +0.0084 |
| 9 | 3.8380 | 3.8628 | +0.0248 | -0.0093 |
| 10 | 3.8273 | 3.8287 | +0.0013 | -0.0100 |
| 11 | 3.8367 | 3.8409 | +0.0043 | -0.0099 |
| 12 | 3.8092 | 3.8475 | +0.0383 | -0.0089 |
| 13 | 3.7987 | 3.8503 | -0.0515 | +0.0115 |
| 14 | 3.7938 | 3.9592 | +0.1655 | -0.0056 |
| 15 | 3.8381 | 3.8908 | +0.0527 | -0.0085 |
| 16 | 3.8519 | 3.8116 | +0.0402 | +0.0088 |
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 -0.0310 -> computed delta +0.0109; 3.7800 +0.0109 = 3.7909