Initial VIPR
4.0280
Registry seed
Current VIPR
4.0917
After latest rated game
Net Movement
+0.0637
Current minus initial
Record
5-3
62% win rate · 8 rated games
Storyline
Kreg S Hamm entered VIPR with an initial registry rating of 4.0280. Across 8 rated doubles games, the player went 5-3 and moved +0.0637, finishing at 4.0917.
Why It Moved
AI-generated explanation: The 5-3 record produced +0.0755 from wins and -0.0118 from losses, for a net move of +0.0637. The biggest single-game impact was +0.0168 against Steve LaVallee as partner and Kevin Faust / Brian Pierce as opponents. In game #7 on 2026-07-23, the player's team was the lower-rated team, so the win carried a larger gain: player team 4.1633 vs opponent team 4.4525.
Partner Chemistry
Partnership patterns are starting to emerge.
Kreg's most common partner signals so far: Anthony Campbell (1-0, 100%), Chris Eversole (1-0, 100%), Jim Suminski (1-0, 100%), Steve LaVallee (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
Kreg has faced Sal Aparo 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-16 | 2-2 | 4.0280 | 4.0455 | +0.0175 |
| 2026-07-23 | 3-1 | 4.0455 | 4.0917 | +0.0462 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-16 | Loss | 9-11 | David Jeanguenat | Chris Eversole / Sal Aparo | 4.0280 | -0.0042 | 4.0238 |
| 2 | 2026-07-16 | Win | 11-10 | Jim Suminski | Sal Aparo / Timothy DeMaria | 4.0238 | +0.0119 | 4.0357 |
| 3 | 2026-07-16 | Loss | 8-11 | Timothy DeMaria | Sal Aparo / David Jeanguenat | 4.0357 | -0.0044 | 4.0313 |
| 4 | 2026-07-16 | Win | 11-9 | Chris Eversole | Jim Suminski / David Jeanguenat | 4.0313 | +0.0142 | 4.0455 |
| 5 | 2026-07-23 | Win | 11-9 | Anthony Campbell | Kevin Faust / Steve LaVallee | 4.0455 | +0.0166 | 4.0621 |
| 6 | 2026-07-23 | Loss | 9-11 | Brian Pierce | Kevin Faust / Tony Chiravolo | 4.0621 | -0.0032 | 4.0589 |
| 7 | 2026-07-23 | Win | 11-7 | Steve LaVallee | Kevin Faust / Brian Pierce | 4.0589 | +0.0168 | 4.0757 |
| 8 | 2026-07-23 | Win | 11-10 | Tony Chiravolo | Anthony Campbell / Brian Pierce | 4.0757 | +0.0160 | 4.0917 |
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 | 4.0982 | 4.3283 | +0.2301 | -0.0042 |
| 2 | 4.1146 | 4.1825 | -0.0680 | +0.0119 |
| 3 | 4.0564 | 4.2777 | +0.2213 | -0.0044 |
| 4 | 4.1326 | 4.2878 | -0.1552 | +0.0142 |
| 5 | 4.1671 | 4.4448 | -0.2777 | +0.0166 |
| 6 | 4.1765 | 4.4667 | +0.2903 | -0.0032 |
| 7 | 4.1633 | 4.4525 | -0.2892 | +0.0168 |
| 8 | 4.1895 | 4.4288 | -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 +0.2301 -> computed delta -0.0042; 4.0280 -0.0042 = 4.0238