Initial VIPR
4.3940
Registry seed
Current VIPR
4.3965
After latest rated game
Net Movement
+0.0025
Current minus initial
Record
8-8
50% win rate · 16 rated games
Storyline
Brian Pierce entered VIPR with an initial registry rating of 4.3940. Across 16 rated doubles games, the player went 8-8 and moved +0.0025, finishing at 4.3965.
Why It Moved
AI-generated explanation: The 8-8 record produced +0.0790 from wins and -0.0765 from losses, for a net move of +0.0025. The biggest single-game impact was -0.0168 against Kevin Faust as partner and Kreg S Hamm / Steve LaVallee as opponents. In game #15 on 2026-07-23, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 4.4525 vs opponent team 4.1633.
Partner Chemistry
Partnership patterns are starting to emerge.
Brian's most common partner signals so far: Gary Jones (2-0, 100%), Guy Ford (2-0, 100%), Kevin Faust (0-2, 0%), Tony Chiravolo (0-2, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Brian has faced Gary Jones 4 times - record: 3-1. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 3-1 | 4.3940 | 4.4155 | +0.0215 |
| 2026-07-09 | 4-0 | 4.4155 | 4.4537 | +0.0382 |
| 2026-07-16 | 1-3 | 4.4537 | 4.4433 | -0.0104 |
| 2026-07-23 | 0-4 | 4.4433 | 4.3965 | -0.0468 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Win | 11-5 | Chris Eversole | Guy Ford / Tony Chiravolo | 4.3940 | +0.0127 | 4.4067 |
| 2 | 2026-07-02 | Win | 11-10 | Gary Jones | Tony Chiravolo / Chris Eversole | 4.4067 | +0.0108 | 4.4175 |
| 3 | 2026-07-02 | Loss | 5-11 | Tony Chiravolo | Guy Ford / Gary Jones | 4.4175 | -0.0102 | 4.4073 |
| 4 | 2026-07-02 | Win | 11-7 | Guy Ford | Chris Eversole / Gary Jones | 4.4073 | +0.0082 | 4.4155 |
| 5 | 2026-07-09 | Win | 11-4 | Steve LaVallee | Guy Ford / Gary Jones | 4.4155 | +0.0104 | 4.4259 |
| 6 | 2026-07-09 | Win | 11-10 | Gary Jones | Steve LaVallee / Jim Suminski | 4.4259 | +0.0088 | 4.4347 |
| 7 | 2026-07-09 | Win | 11-4 | Jim Suminski | Guy Ford / Steve LaVallee | 4.4347 | +0.0123 | 4.4470 |
| 8 | 2026-07-09 | Win | 11-4 | Guy Ford | Gary Jones / Jim Suminski | 4.4470 | +0.0067 | 4.4537 |
| 9 | 2026-07-16 | Win | 11-4 | Derek Wuebbels | Gary Kray / Kevin Faust | 4.4537 | +0.0091 | 4.4628 |
| 10 | 2026-07-16 | Loss | 7-11 | Gary Kray | Richard Chris Armstrong / Oliver Sun | 4.4628 | -0.0067 | 4.4561 |
| 11 | 2026-07-16 | Loss | 7-11 | Kevin Faust | Derek Wuebbels / Oliver Sun | 4.4561 | -0.0056 | 4.4505 |
| 12 | 2026-07-16 | Loss | 6-11 | Richard Chris Armstrong | Derek Wuebbels / Gary Kray | 4.4505 | -0.0072 | 4.4433 |
| 13 | 2026-07-23 | Loss | 9-11 | Kreg S Hamm | Kevin Faust / Tony Chiravolo | 4.4433 | -0.0032 | 4.4401 |
| 14 | 2026-07-23 | Loss | 5-11 | Tony Chiravolo | Anthony Campbell / Steve LaVallee | 4.4401 | -0.0108 | 4.4293 |
| 15 | 2026-07-23 | Loss | 7-11 | Kevin Faust | Kreg S Hamm / Steve LaVallee | 4.4293 | -0.0168 | 4.4125 |
| 16 | 2026-07-23 | Loss | 10-11 | Anthony Campbell | Tony Chiravolo / Kreg S Hamm | 4.4125 | -0.0160 | 4.3965 |
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 | 4.3807 | 4.4757 | -0.0950 | +0.0127 |
| 2 | 4.3761 | 4.4041 | -0.0280 | +0.0108 |
| 3 | 4.4217 | 4.4151 | -0.0066 | -0.0102 |
| 4 | 4.4416 | 4.3790 | +0.0625 | +0.0082 |
| 5 | 4.4131 | 4.4263 | -0.0132 | +0.0104 |
| 6 | 4.3911 | 4.3499 | +0.0412 | +0.0088 |
| 7 | 4.3550 | 4.4378 | -0.0828 | +0.0123 |
| 8 | 4.4650 | 4.3455 | +0.1195 | +0.0067 |
| 9 | 4.5767 | 4.5437 | +0.0330 | +0.0091 |
| 10 | 4.4946 | 4.6155 | +0.1208 | -0.0067 |
| 11 | 4.4803 | 4.6438 | +0.1635 | -0.0056 |
| 12 | 4.5504 | 4.6520 | +0.1016 | -0.0072 |
| 13 | 4.1765 | 4.4667 | +0.2903 | -0.0032 |
| 14 | 4.4443 | 4.4175 | -0.0269 | -0.0108 |
| 15 | 4.4525 | 4.1633 | -0.2892 | -0.0168 |
| 16 | 4.4288 | 4.1895 | -0.2394 | -0.0160 |
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 -0.0950 -> computed delta +0.0127; 4.3940 +0.0127 = 4.4067