VIPR Rating Audit Trail

Rob Schultz

Member ID: TVCPC-P0023   Generated: 2026-09-04 12:10 PM

4.5050 -> 4.4882
Net -0.0168   Record 6-6   Win Rate 50%   Games 12
Initial VIPR
4.5050
Registry seed
Current VIPR
4.4882
After latest rated game
Net Movement
-0.0168
Current minus initial
Record
6-6
50% win rate · 12 rated games

Storyline

Rob Schultz entered VIPR with an initial registry rating of 4.5050. Across 12 rated doubles games, the player went 6-6 and moved -0.0168, finishing at 4.4882.

Why It Moved

AI-generated explanation: The 6-6 record produced +0.0449 from wins and -0.0617 from losses, for a net move of -0.0168. The biggest single-game impact was -0.0168 against Ted Custer as partner and Richard Chris Armstrong / Kreg S Hamm as opponents. In game #6 on 2026-08-20, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 4.6210 vs opponent team 4.3299.

Partner Chemistry

Partnership patterns are starting to emerge.

Rob's most common partner signals so far: Steve LaVallee (2-0, 100%), Kreg S Hamm (0-2, 0%), Gary Jones (1-0, 100%), Gary Kray (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

Rob has faced Kreg S Hamm 4 times - record: 2-2. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-08-13 4-0 4.5050 4.5417 +0.0367
2026-08-20 1-3 4.5417 4.5190 -0.0227
2026-08-27 1-3 4.5190 4.4882 -0.0308

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-08-13 Win 11-7 Oliver Sun Steve LaVallee / Kevin Faust 4.5050 +0.0071 4.5121
2 2026-08-13 Win 11-1 Kevin Faust Steve LaVallee / Gary Jones 4.5121 +0.0069 4.5190
3 2026-08-13 Win 11-9 Steve LaVallee Oliver Sun / Gary Jones 4.5190 +0.0096 4.5286
4 2026-08-13 Win 11-9 Gary Jones Oliver Sun / Kevin Faust 4.5286 +0.0131 4.5417
5 2026-08-20 Loss 7-11 Kreg S Hamm Richard Chris Armstrong / Gary Kray 4.5417 -0.0023 4.5394
6 2026-08-20 Loss 7-11 Ted Custer Richard Chris Armstrong / Kreg S Hamm 4.5394 -0.0168 4.5226
7 2026-08-20 Win 11-9 Gary Kray Ted Custer / Kreg S Hamm 4.5226 +0.0052 4.5278
8 2026-08-20 Loss 3-11 Richard Chris Armstrong Ted Custer / Gary Kray 4.5278 -0.0088 4.5190
9 2026-08-27 Win 11-9 Steve LaVallee Kreg S Hamm / Daren Haskell 4.5190 +0.0030 4.5220
10 2026-08-27 Loss 5-11 Daren Haskell Steve LaVallee / Jerry Linklater 4.5220 -0.0065 4.5155
11 2026-08-27 Loss 5-11 Jerry Linklater Kreg S Hamm / Steve LaVallee 4.5155 -0.0145 4.5010
12 2026-08-27 Loss 9-11 Kreg S Hamm Daren Haskell / Jerry Linklater 4.5010 -0.0128 4.4882

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 DiffComputed Delta
1 4.5331 4.4291 +0.1040 +0.0071
2 4.4781 4.3658 +0.1122 +0.0069
3 4.4338 4.4215 +0.0123 +0.0096
4 4.4004 4.5131 -0.1128 +0.0131
5 4.2694 4.6241 +0.3547 -0.0023
6 4.6210 4.3299 -0.2910 -0.0168
7 4.5380 4.3554 +0.1826 +0.0052
8 4.5991 4.6422 +0.0431 -0.0088
9 4.4137 4.1149 +0.2988 +0.0030
10 4.2208 4.3494 +0.1286 -0.0065
11 4.3893 4.2203 -0.1690 -0.0145
12 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 +0.1040 -> computed delta +0.0071; 4.5050 +0.0071 = 4.5121