VIPR Rating Audit Trail

Brian Leonard

Member ID: TVCPC-P0568   Generated: 2026-09-04 12:10 PM

2.8910 -> 2.9958
Net +0.1048   Record 9-11   Win Rate 45%   Games 20
Initial VIPR
2.8910
Registry seed
Current VIPR
2.9958
After latest rated game
Net Movement
+0.1048
Current minus initial
Record
9-11
45% win rate · 20 rated games

Storyline

Brian Leonard entered VIPR with an initial registry rating of 2.8910. Across 20 rated doubles games, the player went 9-11 and moved +0.1048, finishing at 2.9958.

Why It Moved

AI-generated explanation: The record was below .500, but the rating rose because the 9 win(s) added +0.1290 against stronger situations while the 11 losses cost -0.0242. The biggest single-game impact was +0.0193 against Jimmy Bowes as partner and George Carroll / Joseph DeVito as opponents. In game #6 on 2026-07-23, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.1557 vs opponent team 3.7378.

Partner Chemistry

Partnership patterns are starting to emerge.

Brian's most common partner signals so far: Gerard Sorrentino (2-0, 100%), Robert Gannon (2-0, 100%), George Carroll (0-2, 0%), Eric Jones (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

Brian has faced Gerard Sorrentino 5 times - record: 4-1. Clear ownership of the matchup.

Session Summary

DateW-LStartEndNet
2026-07-09 4-0 2.8910 2.9397 +0.0487
2026-07-23 1-3 2.9397 2.9562 +0.0165
2026-08-06 0-4 2.9562 2.9527 -0.0035
2026-08-13 2-2 2.9527 2.9816 +0.0289
2026-08-20 2-2 2.9816 2.9958 +0.0142

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-09 Win 11-5 Robert Gannon Gerard Sorrentino / Gregory Kerr 2.8910 +0.0155 2.9065
2 2026-07-09 Win 11-3 Gregory Kerr Gerard Sorrentino / Robert Gannon 2.9065 +0.0107 2.9172
3 2026-07-09 Win 11-6 Gerard Sorrentino Gregory Kerr / Robert Gannon 2.9172 +0.0075 2.9247
4 2026-07-09 Win 11-5 Robert Gannon Gerard Sorrentino / Gregory Kerr 2.9247 +0.0150 2.9397
5 2026-07-23 Loss 10-11 Joseph DeVito Jim Feehan / George Carroll 2.9397 -0.0009 2.9388
6 2026-07-23 Win 11-8 Jimmy Bowes George Carroll / Joseph DeVito 2.9388 +0.0193 2.9581
7 2026-07-23 Loss 6-11 George Carroll Jim Feehan / Jimmy Bowes 2.9581 -0.0009 2.9572
8 2026-07-23 Loss 8-11 Jim Feehan Joseph DeVito / Jimmy Bowes 2.9572 -0.0010 2.9562
9 2026-08-06 Loss 2-11 Robert Nunn George Carroll / Edward Gainer 2.9562 -0.0012 2.9550
10 2026-08-06 Loss 9-11 Edward Gainer Sunil Sadhwani / Dan Civitarese 2.9550 -0.0005 2.9545
11 2026-08-06 Loss 9-11 George Carroll Robert Nunn / Dan Civitarese 2.9545 -0.0004 2.9541
12 2026-08-06 Loss 7-11 Sunil Sadhwani Edward Gainer / Robert Nunn 2.9541 -0.0014 2.9527
13 2026-08-13 Loss 4-11 John Kaufman Kenneth Enos / Ken Luthy 2.9527 -0.0023 2.9504
14 2026-08-13 Loss 5-11 Rusty Bateman Ken Luthy / John Kaufman 2.9504 -0.0023 2.9481
15 2026-08-13 Win 11-8 Ken Luthy Kenneth Enos / Rusty Bateman 2.9481 +0.0172 2.9653
16 2026-08-13 Win 11-7 Kenneth Enos John Kaufman / Rusty Bateman 2.9653 +0.0163 2.9816
17 2026-08-20 Loss 4-11 Ron Ahart Eric Jones / Jerry Johnson 2.9816 -0.0078 2.9738
18 2026-08-20 Win 11-7 Gerard Sorrentino Ron Ahart / Eric Jones 2.9738 +0.0144 2.9882
19 2026-08-20 Win 11-8 Eric Jones Jerry Johnson / Gerard Sorrentino 2.9882 +0.0131 3.0013
20 2026-08-20 Loss 10-11 Jerry Johnson Ron Ahart / Gerard Sorrentino 3.0013 -0.0055 2.9958

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 2.8630 3.0780 -0.2150 +0.0155
2 2.9371 2.9631 -0.0260 +0.0107
3 2.9954 2.9048 +0.0906 +0.0075
4 2.8712 3.0638 -0.1926 +0.0150
5 3.1958 3.7250 +0.5291 -0.0009
6 3.1557 3.7378 -0.5821 +0.0193
7 3.1792 3.7026 +0.5234 -0.0009
8 3.1961 3.7094 +0.5133 -0.0010
9 3.1401 3.6132 +0.4731 -0.0012
10 3.1458 3.7883 +0.6424 -0.0005
11 3.1688 3.8579 +0.6891 -0.0004
12 3.1139 3.5697 +0.4558 -0.0014
13 3.0965 3.4494 +0.3529 -0.0023
14 3.0774 3.4290 +0.3516 -0.0023
15 3.0930 3.4117 -0.3187 +0.0172
16 3.1222 3.3776 -0.2554 +0.0163
17 3.0577 3.1370 +0.0793 -0.0078
18 3.0408 3.2035 -0.1627 +0.0144
19 3.0439 3.1563 -0.1124 +0.0131
20 3.0368 3.2062 +0.1694 -0.0055

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 -0.2150 -> computed delta +0.0155; 2.8910 +0.0155 = 2.9065