VIPR Rating Audit Trail

David DeBeradinis

Member ID: TVCPC-P0207   Generated: 2026-09-04 12:10 PM

4.3690 -> 4.4084
Net +0.0394   Record 16-8   Win Rate 67%   Games 24
Initial VIPR
4.3690
Registry seed
Current VIPR
4.4084
After latest rated game
Net Movement
+0.0394
Current minus initial
Record
16-8
67% win rate · 24 rated games

Storyline

David DeBeradinis entered VIPR with an initial registry rating of 4.3690. Across 24 rated doubles games, the player went 16-8 and moved +0.0394, finishing at 4.4084.

Why It Moved

AI-generated explanation: The 16-8 record produced +0.1321 from wins and -0.0927 from losses, for a net move of +0.0394. The biggest single-game impact was -0.0162 against Chris Eversole as partner and Richard Whittington / Sal Aparo as opponents. In game #2 on 2026-07-23, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 4.3748 vs opponent team 4.1222.

Partner Chemistry

Partnership patterns are starting to emerge.

David's most common partner signals so far: Jerry Linklater (4-0, 100%), Gary Jones (2-1, 67%), Jim Suminski (2-0, 100%), Chip Leccese (1-1, 50%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

David has faced Jerry Linklater 8 times - record: 2-6. A tough matchup so far.

Session Summary

DateW-LStartEndNet
2026-07-23 3-1 4.3690 4.3714 +0.0024
2026-08-06 2-2 4.3714 4.3638 -0.0076
2026-08-13 2-2 4.3638 4.3648 +0.0010
2026-08-20 3-1 4.3648 4.3787 +0.0139
2026-08-27 4-0 4.3787 4.4127 +0.0340
2026-09-03 2-2 4.4127 4.4084 -0.0043

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-23 Win 11-8 Jim Suminski Gary Jones / Richard Whittington 4.3690 +0.0049 4.3739
2 2026-07-23 Loss 5-11 Chris Eversole Richard Whittington / Sal Aparo 4.3739 -0.0162 4.3577
3 2026-07-23 Win 11-4 Sal Aparo Richard Whittington / Jim Suminski 4.3577 +0.0045 4.3622
4 2026-07-23 Win 11-6 Gary Jones Chris Eversole / Jim Suminski 4.3622 +0.0092 4.3714
5 2026-08-06 Loss 9-11 Sal Aparo David Jeanguenat / Jerry Linklater 4.3714 -0.0127 4.3587
6 2026-08-06 Win 11-9 Jerry Linklater David Jeanguenat / Daren Haskell 4.3587 +0.0049 4.3636
7 2026-08-06 Loss 4-11 David Jeanguenat Sal Aparo / Daren Haskell 4.3636 -0.0142 4.3494
8 2026-08-06 Win 11-1 Daren Haskell Sal Aparo / Jerry Linklater 4.3494 +0.0144 4.3638
9 2026-08-13 Win 11-6 Jerry Linklater Tony Toledo / Brian Pierce 4.3638 +0.0123 4.3761
10 2026-08-13 Loss 7-11 Guy Ford Brian Pierce / Jerry Linklater 4.3761 -0.0120 4.3641
11 2026-08-13 Win 11-5 Brian Pierce Tony Toledo / Guy Ford 4.3641 +0.0112 4.3753
12 2026-08-13 Loss 5-11 Tony Toledo Jerry Linklater / Guy Ford 4.3753 -0.0105 4.3648
13 2026-08-20 Win 11-9 Jerry Linklater Tony Toledo / Richard Whittington 4.3648 +0.0050 4.3698
14 2026-08-20 Loss 0-11 Chip Leccese Jerry Linklater / Tony Toledo 4.3698 -0.0065 4.3633
15 2026-08-20 Win 11-9 Tony Toledo Richard Whittington / Chip Leccese 4.3633 +0.0032 4.3665
16 2026-08-20 Win 11-8 Richard Whittington Jerry Linklater / Chip Leccese 4.3665 +0.0122 4.3787
17 2026-08-27 Win 11-7 Gary Jones Bill Shoemaker / Jim Suminski 4.3787 +0.0082 4.3869
18 2026-08-27 Win 11-7 Jim Suminski Bill Shoemaker / Chip Leccese 4.3869 +0.0070 4.3939
19 2026-08-27 Win 11-7 Bill Shoemaker Gary Jones / Chip Leccese 4.3939 +0.0068 4.4007
20 2026-08-27 Win 11-10 Chip Leccese Gary Jones / Jim Suminski 4.4007 +0.0120 4.4127
21 2026-09-03 Loss 5-11 Gary Jones Chris Eversole / Jerry Linklater 4.4127 -0.0099 4.4028
22 2026-09-03 Loss 8-11 John Hubbs Jerry Linklater / Gary Jones 4.4028 -0.0107 4.3921
23 2026-09-03 Win 11-9 Jerry Linklater Chris Eversole / John Hubbs 4.3921 +0.0088 4.4009
24 2026-09-03 Win 11-9 Chris Eversole Gary Jones / John Hubbs 4.4009 +0.0075 4.4084

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 4.3372 4.1416 +0.1956 +0.0049
2 4.3748 4.1222 -0.2525 -0.0162
3 4.3487 4.1335 +0.2152 +0.0045
4 4.3586 4.3310 +0.0275 +0.0092
5 4.3592 4.2637 -0.0955 -0.0127
6 4.3154 4.1203 +0.1951 +0.0049
7 4.2930 4.1389 -0.1541 -0.0142
8 4.1610 4.3234 -0.1624 +0.0144
9 4.3200 4.4013 -0.0813 +0.0123
10 4.4040 4.3347 -0.0693 -0.0120
11 4.3737 4.4172 -0.0435 +0.0112
12 4.3794 4.3616 -0.0178 -0.0105
13 4.3531 4.1607 +0.1925 +0.0050
14 4.2338 4.3598 +0.1261 -0.0065
15 4.3742 4.0854 +0.2888 +0.0032
16 4.1424 4.2217 -0.0793 +0.0122
17 4.3473 4.2850 +0.0623 +0.0082
18 4.3033 4.1971 +0.1062 +0.0070
19 4.3222 4.2053 +0.1170 +0.0068
20 4.2276 4.2982 -0.0706 +0.0120
21 4.3406 4.3450 +0.0044 -0.0099
22 4.3357 4.3129 -0.0229 -0.0107
23 4.3655 4.3220 +0.0435 +0.0088
24 4.3814 4.2944 +0.0870 +0.0075

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 +0.1956 -> computed delta +0.0049; 4.3690 +0.0049 = 4.3739