VIPR Rating Audit Trail

William Brier

Member ID: TVCPC-P0536   Generated: 2026-09-04 12:10 PM

3.5000 -> 3.4009
Net -0.0991   Record 6-10   Win Rate 38%   Games 16
Initial VIPR
3.5000
Registry seed
Current VIPR
3.4009
After latest rated game
Net Movement
-0.0991
Current minus initial
Record
6-10
38% win rate · 16 rated games

Storyline

William Brier entered VIPR with an initial registry rating of 3.5000. Across 16 rated doubles games, the player went 6-10 and moved -0.0991, finishing at 3.4009.

Why It Moved

AI-generated explanation: The 6-10 record produced +0.0300 from wins and -0.1291 from losses, for a net move of -0.0991. The biggest single-game impact was -0.0166 against John Kasberger as partner and Kevin Frasz / Robert Gannon as opponents. In game #13 on 2026-08-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.2236 vs opponent team 2.9462.

Partner Chemistry

Partnership patterns are starting to emerge.

William's most common partner signals so far: Robert Gannon (2-1, 67%), Danny Landry (1-1, 50%), Roger Thurman (0-2, 0%), Ron Hudik (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

William has faced Danny Landry 4 times - record: 3-1. Clear ownership of the matchup.

Session Summary

DateW-LStartEndNet
2026-07-16 3-1 3.5000 3.5017 +0.0017
2026-07-23 1-3 3.5017 3.4753 -0.0264
2026-08-06 2-2 3.4753 3.4598 -0.0155
2026-08-13 0-4 3.4598 3.4009 -0.0589

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-16 Win 11-4 Danny Landry Gabriel Coss / Robert Gannon 3.5000 +0.0036 3.5036
2 2026-07-16 Win 11-10 Robert Gannon Gabriel Coss / Roger Thurman 3.5036 +0.0059 3.5095
3 2026-07-16 Win 11-5 Robert Gannon Danny Landry / Roger Thurman 3.5095 +0.0060 3.5155
4 2026-07-16 Loss 10-11 Roger Thurman Danny Landry / Robert Gannon 3.5155 -0.0138 3.5017
5 2026-07-23 Loss 4-11 Charles S Nichols Edward Gainer / Ron Hudik 3.5017 -0.0066 3.4951
6 2026-07-23 Win 11-7 Edward Gainer Ron Hudik / Charles S Nichols 3.4951 +0.0049 3.5000
7 2026-07-23 Loss 5-11 Ron Hudik Edward Gainer / Charles S Nichols 3.5000 -0.0127 3.4873
8 2026-07-23 Loss 3-11 Ron Hudik Edward Gainer / Charles S Nichols 3.4873 -0.0120 3.4753
9 2026-08-06 Win 11-3 Gerard Sorrentino Danny Landry / Mike Cluck 3.4753 +0.0042 3.4795
10 2026-08-06 Win 11-4 Mike Cluck Danny Landry / Gregory Kerr 3.4795 +0.0054 3.4849
11 2026-08-06 Loss 5-11 Danny Landry Gerard Sorrentino / Gregory Kerr 3.4849 -0.0136 3.4713
12 2026-08-06 Loss 3-11 Gregory Kerr Gerard Sorrentino / Mike Cluck 3.4713 -0.0115 3.4598
13 2026-08-13 Loss 9-11 John Kasberger Kevin Frasz / Robert Gannon 3.4598 -0.0166 3.4432
14 2026-08-13 Loss 4-11 Robert Gannon Kevin Frasz / Roger Thurman 3.4432 -0.0150 3.4282
15 2026-08-13 Loss 6-11 Kevin Frasz John Kasberger / Roger Thurman 3.4282 -0.0157 3.4125
16 2026-08-13 Loss 4-11 Roger Thurman John Kasberger / Robert Gannon 3.4125 -0.0116 3.4009

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 3.1640 2.8980 +0.2660 +0.0036
2 3.0529 2.8997 +0.1531 +0.0059
3 3.0588 2.9101 +0.1487 +0.0060
4 3.0534 2.9154 -0.1380 -0.0138
5 3.3450 3.4665 +0.1214 -0.0066
6 3.5147 3.3206 +0.1940 +0.0049
7 3.4516 3.3560 -0.0955 -0.0127
8 3.4389 3.3687 -0.0701 -0.0120
9 3.2618 3.0303 +0.2315 +0.0042
10 3.1618 2.9889 +0.1729 +0.0054
11 3.1607 3.0293 -0.1314 -0.0136
12 3.1362 3.0830 -0.0532 -0.0115
13 3.2236 2.9462 -0.2774 -0.0166
14 3.0881 2.8959 -0.1922 -0.0150
15 3.1569 2.9304 -0.2264 -0.0157
16 3.0436 2.9869 -0.0567 -0.0116

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 +0.2660 -> computed delta +0.0036; 3.5000 +0.0036 = 3.5036