VIPR Rating Audit Trail

Mark Hayward

Member ID: TVCPC-P0611   Generated: 2026-10-29 07:46 PM

3.2700 -> 3.2954
Net +0.0254   Record 8-4   Win Rate 67%   Games 12
Initial VIPR
3.2700
Registry seed
Current VIPR
3.2954
After latest rated game
Net Movement
+0.0254
Current minus initial
Record
8-4
67% win rate · 12 rated games

Storyline

Mark Hayward entered VIPR with an initial registry rating of 3.2700. Across 12 rated doubles games, the player went 8-4 and moved +0.0254, finishing at 3.2954.

Why It Moved

AI-generated explanation: The 8-4 record produced +0.0701 from wins and -0.0447 from losses, for a net move of +0.0254. The biggest single-game impact was -0.0135 against Steven Fleming as partner and Gabriel Fontana / Jeffrey Buxbaum as opponents. In game #9 on 2026-10-29, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.2336 vs opponent team 3.1055.

Partner Chemistry

Partnership patterns are starting to emerge.

Mark's most common partner signals so far: Jeffrey Buxbaum (2-0, 100%), Charles S Nichols (0-2, 0%), David Roman (1-0, 100%), Gabriel Coss (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

Mark has faced Gerard Sorrentino 3 times - record: 0-3. A tough matchup so far.

Session Summary

DateW-LStartEndNet
2026-10-01 1-3 3.2700 3.2500 -0.0200
2026-10-15 4-0 3.2500 3.2804 +0.0304
2026-10-29 3-1 3.2804 3.2954 +0.0150

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-10-01
Thursday Men's Ladder League - Fall 2026
Loss 4-11 Charles S Nichols Rusty Bateman / Gerard Sorrentino 3.2700 -0.0106 3.2594
2 2026-10-01
Thursday Men's Ladder League - Fall 2026
Win 11-9 Gerard Sorrentino Charles S Nichols / Rusty Bateman 3.2594 +0.0112 3.2706
3 2026-10-01
Thursday Men's Ladder League - Fall 2026
Loss 10-11 Rusty Bateman Charles S Nichols / Gerard Sorrentino 3.2706 -0.0109 3.2597
4 2026-10-01
Thursday Men's Ladder League - Fall 2026
Loss 9-11 Charles S Nichols Rusty Bateman / Gerard Sorrentino 3.2597 -0.0097 3.2500
5 2026-10-15
Thursday Men's Ladder League - Fall 2026
Win 11-3 Ronnie Halcomb Jeffrey Buxbaum / Gabriel Coss 3.2500 +0.0096 3.2596
6 2026-10-15
Thursday Men's Ladder League - Fall 2026
Win 11-2 Gabriel Coss Ray Kopja / James Russ 3.2596 +0.0093 3.2689
7 2026-10-15
Thursday Men's Ladder League - Fall 2026
Win 11-8 James Russ Ronnie Halcomb / Ray Kopja 3.2689 +0.0059 3.2748
8 2026-10-15
Thursday Men's Ladder League - Fall 2026
Win 11-8 Jeffrey Buxbaum Ray Kopja / Gabriel Coss 3.2748 +0.0056 3.2804
9 2026-10-29
Thursday Men's Ladder League - Fall 2026
Loss 7-11 Steven Fleming Gabriel Fontana / Jeffrey Buxbaum 3.2804 -0.0135 3.2669
10 2026-10-29
Thursday Men's Ladder League - Fall 2026
Win 11-10 David Roman Gabriel Fontana / Steven Fleming 3.2669 +0.0077 3.2746
11 2026-10-29
Thursday Men's Ladder League - Fall 2026
Win 11-5 Jeffrey Buxbaum David Roman / Steven Fleming 3.2746 +0.0126 3.2872
12 2026-10-29
Thursday Men's Ladder League - Fall 2026
Win 11-9 Gabriel Fontana David Roman / Jeffrey Buxbaum 3.2872 +0.0082 3.2954

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 3.2729 3.2527 -0.0201 -0.0106
2 3.2440 3.2854 -0.0414 +0.0112
3 3.2832 3.2513 -0.0319 -0.0109
4 3.2624 3.2722 +0.0098 -0.0097
5 2.9794 2.9672 +0.0122 +0.0096
6 3.0231 2.9985 +0.0246 +0.0093
7 3.0671 2.9140 +0.1531 +0.0059
8 3.1163 2.9528 +0.1635 +0.0056
9 3.2336 3.1055 -0.1281 -0.0135
10 3.2832 3.2020 +0.0812 +0.0077
11 3.1394 3.2334 -0.0939 +0.0126
12 3.2253 3.1608 +0.0646 +0.0082

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 -0.0201 -> computed delta -0.0106; 3.2700 -0.0106 = 3.2594