VIPR Rating Audit Trail

Robert Nunn

Member ID: TVCPC-P0218   Generated: 2026-09-04 12:10 PM

3.5300 -> 3.6150
Net +0.0850   Record 18-13   Win Rate 58%   Games 31
Initial VIPR
3.5300
Registry seed
Current VIPR
3.6150
After latest rated game
Net Movement
+0.0850
Current minus initial
Record
18-13
58% win rate · 31 rated games

Storyline

Robert Nunn entered VIPR with an initial registry rating of 3.5300. Across 31 rated doubles games, the player went 18-13 and moved +0.0850, finishing at 3.6150.

Why It Moved

AI-generated explanation: The 18-13 record produced +0.2003 from wins and -0.1153 from losses, for a net move of +0.0850. The biggest single-game impact was +0.0187 against Sunil Sadhwani as partner and George Carroll / Dan Civitarese as opponents. In game #13 on 2026-08-06, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.4801 vs opponent team 3.9462.

Partner Chemistry

Partnership patterns are starting to emerge.

Robert's most common partner signals so far: Dan Civitarese (3-1, 75%), Sunil Sadhwani (3-1, 75%), Edward Gainer (1-3, 25%), Kevin Geraty (2-1, 67%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

Robert has faced Sunil Sadhwani 7 times - record: 3-4. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-07-02 2-2 3.5300 3.5390 +0.0090
2026-07-09 3-1 3.5390 3.5683 +0.0293
2026-07-23 1-3 3.5683 3.5504 -0.0179
2026-08-06 3-1 3.5504 3.5697 +0.0193
2026-08-13 3-0 3.5697 3.6029 +0.0332
2026-08-20 3-1 3.6029 3.6264 +0.0235
2026-08-27 2-2 3.6264 3.6295 +0.0031
2026-09-03 1-3 3.6295 3.6150 -0.0145

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02 Win 11-4 Chris Donahue Kevin Battle / Randy Cummings 3.5300 +0.0117 3.5417
2 2026-07-02 Loss 5-11 Jimmy Bowes Kevin Battle / Chris Donahue 3.5417 -0.0081 3.5336
3 2026-07-02 Loss 2-11 Randy Cummings Jimmy Bowes / Chris Donahue 3.5336 -0.0067 3.5269
4 2026-07-02 Win 11-3 Kevin Battle Jimmy Bowes / Randy Cummings 3.5269 +0.0121 3.5390
5 2026-07-09 Win 11-7 George Carroll Jim Feehan / Edward Gainer 3.5390 +0.0115 3.5505
6 2026-07-09 Win 11-1 Tim Tonguis Jim Feehan / George Carroll 3.5505 +0.0128 3.5633
7 2026-07-09 Loss 4-11 Edward Gainer Tim Tonguis / George Carroll 3.5633 -0.0057 3.5576
8 2026-07-09 Win 11-6 Jim Feehan Tim Tonguis / Edward Gainer 3.5576 +0.0107 3.5683
9 2026-07-23 Loss 9-11 Joseph Weber Kevin Geraty / Sunil Sadhwani 3.5683 -0.0172 3.5511
10 2026-07-23 Loss 1-11 Robert McCollough Joseph Weber / Kevin Geraty 3.5511 -0.0054 3.5457
11 2026-07-23 Loss 9-11 Kevin Geraty Sunil Sadhwani / Robert McCollough 3.5457 -0.0123 3.5334
12 2026-07-23 Win 11-7 Sunil Sadhwani Joseph Weber / Robert McCollough 3.5334 +0.0170 3.5504
13 2026-08-06 Win 11-10 Sunil Sadhwani George Carroll / Dan Civitarese 3.5504 +0.0187 3.5691
14 2026-08-06 Loss 2-11 Brian Leonard George Carroll / Edward Gainer 3.5691 -0.0012 3.5679
15 2026-08-06 Win 11-9 Dan Civitarese George Carroll / Brian Leonard 3.5679 +0.0004 3.5683
16 2026-08-06 Win 11-7 Edward Gainer Sunil Sadhwani / Brian Leonard 3.5683 +0.0014 3.5697
17 2026-08-13 Win 11-6 Kevin Geraty John Ressler / Jim Toth 3.5697 +0.0135 3.5832
18 2026-08-13 Win 11-8 Jim Toth Kevin Geraty / Dan Civitarese 3.5832 +0.0161 3.5993
19 2026-08-13 Win 11-5 Dan Civitarese John Ressler / Kevin Geraty 3.5993 +0.0036 3.6029
20 2026-08-20 Win 11-3 Dan Civitarese Ken Lomando / Sunil Sadhwani 3.6029 +0.0023 3.6052
21 2026-08-20 Win 11-5 Kevin Geraty Dan Civitarese / Ken Lomando 3.6052 +0.0175 3.6227
22 2026-08-20 Loss 8-11 Ken Lomando Sunil Sadhwani / Kevin Geraty 3.6227 -0.0137 3.6090
23 2026-08-20 Win 11-10 Sunil Sadhwani Dan Civitarese / Kevin Geraty 3.6090 +0.0174 3.6264
24 2026-08-27 Loss 9-11 Jim Toth Joseph DeVito / Edward Gainer 3.6264 -0.0096 3.6168
25 2026-08-27 Win 11-8 Joseph DeVito Jimmy Bowes / Kevin Battle 3.6168 +0.0105 3.6273
26 2026-08-27 Loss 7-11 Edward Gainer Jim Toth / Kevin Battle 3.6273 -0.0089 3.6184
27 2026-08-27 Win 11-2 Jimmy Bowes Jim Toth / Joseph DeVito 3.6184 +0.0111 3.6295
28 2026-09-03 Win 11-3 Mark Wu Sunil Sadhwani / Dan Civitarese 3.6295 +0.0120 3.6415
29 2026-09-03 Loss 7-11 Edward Gainer Mark Wu / Sunil Sadhwani 3.6415 -0.0084 3.6331
30 2026-09-03 Loss 9-11 Sunil Sadhwani Dan Civitarese / Edward Gainer 3.6331 -0.0037 3.6294
31 2026-09-03 Loss 9-11 Dan Civitarese Mark Wu / Edward Gainer 3.6294 -0.0144 3.6150

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 3.5767 3.6364 -0.0598 +0.0117
2 3.5818 3.6479 +0.0661 -0.0081
3 3.5607 3.6787 +0.1180 -0.0067
4 3.5593 3.6342 -0.0750 +0.0121
5 3.5855 3.6367 -0.0512 +0.0115
6 3.6215 3.7201 -0.0986 +0.0128
7 3.5653 3.7249 +0.1596 -0.0057
8 3.6126 3.6368 -0.0241 +0.0107
9 3.7501 3.4382 -0.3119 -0.0172
10 3.5606 3.7325 +0.1719 -0.0054
11 3.5477 3.4677 -0.0801 -0.0123
12 3.4631 3.7639 -0.3008 +0.0170
13 3.4801 3.9462 -0.4661 +0.0187
14 3.1401 3.6132 +0.4731 -0.0012
15 3.8579 3.1688 +0.6891 +0.0004
16 3.5697 3.1139 +0.4558 +0.0014
17 3.5448 3.6718 -0.1270 +0.0135
18 3.5899 3.8385 -0.2487 +0.0161
19 3.8703 3.6060 +0.2643 +0.0036
20 3.8739 3.5231 +0.3508 +0.0023
21 3.5612 3.8983 -0.3371 +0.0175
22 3.6237 3.4894 -0.1343 -0.0137
23 3.5137 3.8440 -0.3303 +0.0174
24 3.6297 3.6436 +0.0139 -0.0096
25 3.6666 3.6827 -0.0161 +0.0105
26 3.6004 3.6405 +0.0401 -0.0089
27 3.6507 3.6900 -0.0392 +0.0111
28 3.7295 3.7987 -0.0692 +0.0120
29 3.6062 3.6606 +0.0544 -0.0084
30 3.5698 3.8284 +0.2586 -0.0037
31 3.8622 3.6997 -0.1625 -0.0144

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 -0.0598 -> computed delta +0.0117; 3.5300 +0.0117 = 3.5417