Initial VIPR
4.0280
Registry seed
Current VIPR
4.1495
After latest rated game
Net Movement
+0.1215
Current minus initial
Record
12-11
52% win rate · 23 rated games
Storyline
Kreg S Hamm entered VIPR with an initial registry rating of 4.0280. Across 23 rated doubles games, the player went 12-11 and moved +0.1215, finishing at 4.1495.
Why It Moved
AI-generated explanation: The 12-11 record produced +0.1744 from wins and -0.0529 from losses, for a net move of +0.1215. 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: Steve LaVallee (3-0, 100%), Tony Chiravolo (2-0, 100%), Rob Schultz (0-2, 0%), Ted Custer (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
Kreg has faced Steve LaVallee 5 times - record: 3-2. 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 |
| 2026-08-06 | 4-0 | 4.0917 | 4.1425 | +0.0508 |
| 2026-08-13 | 1-2 | 4.1425 | 4.1539 | +0.0114 |
| 2026-08-20 | 1-3 | 4.1539 | 4.1620 | +0.0081 |
| 2026-08-27 | 1-3 | 4.1620 | 4.1495 | -0.0125 |
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 |
| 9 | 2026-08-06 | Win | 11-6 | Gary Jones | Tony Chiravolo / Steve LaVallee | 4.0917 | +0.0167 | 4.1084 |
| 10 | 2026-08-06 | Win | 11-2 | Steve LaVallee | Kevin Faust / Patrick Lee | 4.1084 | +0.0108 | 4.1192 |
| 11 | 2026-08-06 | Win | 11-7 | Tony Chiravolo | Gary Jones / Patrick Lee | 4.1192 | +0.0091 | 4.1283 |
| 12 | 2026-08-06 | Win | 11-5 | Kevin Faust | Steve LaVallee / Gary Jones | 4.1283 | +0.0142 | 4.1425 |
| 13 | 2026-08-13 | Loss | 10-11 | Michael Leardi | Ted Custer / Derek Wuebbels | 4.1425 | -0.0009 | 4.1416 |
| 14 | 2026-08-13 | Win | 11-8 | Derek Wuebbels | Richard Chris Armstrong / Gary Kray | 4.1416 | +0.0168 | 4.1584 |
| 15 | 2026-08-13 | Loss | 7-9 | Ted Custer | Michael Leardi / Gary Kray | 4.1584 | -0.0045 | 4.1539 |
| 16 | 2026-08-20 | Loss | 4-11 | Gary Kray | Ted Custer / Richard Chris Armstrong | 4.1539 | -0.0012 | 4.1527 |
| 17 | 2026-08-20 | Loss | 7-11 | Rob Schultz | Richard Chris Armstrong / Gary Kray | 4.1527 | -0.0023 | 4.1504 |
| 18 | 2026-08-20 | Win | 11-7 | Richard Chris Armstrong | Ted Custer / Rob Schultz | 4.1504 | +0.0168 | 4.1672 |
| 19 | 2026-08-20 | Loss | 9-11 | Ted Custer | Gary Kray / Rob Schultz | 4.1672 | -0.0052 | 4.1620 |
| 20 | 2026-08-27 | Loss | 9-11 | Daren Haskell | Steve LaVallee / Rob Schultz | 4.1620 | -0.0030 | 4.1590 |
| 21 | 2026-08-27 | Loss | 10-11 | Jerry Linklater | Daren Haskell / Steve LaVallee | 4.1590 | -0.0112 | 4.1478 |
| 22 | 2026-08-27 | Win | 11-5 | Steve LaVallee | Rob Schultz / Jerry Linklater | 4.1478 | +0.0145 | 4.1623 |
| 23 | 2026-08-27 | Loss | 9-11 | Rob Schultz | Daren Haskell / Jerry Linklater | 4.1623 | -0.0128 | 4.1495 |
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 |
| 9 | 4.1710 | 4.4503 | -0.2793 | +0.0167 |
| 10 | 4.2014 | 4.2291 | -0.0277 | +0.0108 |
| 11 | 4.2241 | 4.1943 | +0.0299 | +0.0091 |
| 12 | 4.2267 | 4.3822 | -0.1554 | +0.0142 |
| 13 | 4.2847 | 4.8211 | +0.5364 | -0.0009 |
| 14 | 4.3449 | 4.6328 | -0.2879 | +0.0168 |
| 15 | 4.3594 | 4.5730 | +0.2136 | -0.0045 |
| 16 | 4.2796 | 4.7647 | +0.4851 | -0.0012 |
| 17 | 4.2694 | 4.6241 | +0.3547 | -0.0023 |
| 18 | 4.3299 | 4.6210 | -0.2910 | +0.0168 |
| 19 | 4.3554 | 4.5380 | +0.1826 | -0.0052 |
| 20 | 4.1149 | 4.4137 | +0.2988 | -0.0030 |
| 21 | 4.2152 | 4.1731 | -0.0421 | -0.0112 |
| 22 | 4.2203 | 4.3893 | -0.1690 | +0.0145 |
| 23 | 4.2639 | 4.1637 | -0.1002 | -0.0128 |
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