VIPR Rating Audit Trail

Barbara Dobkins

Member ID: TVCPC-P0619   Generated: 2026-10-29 07:46 PM

3.3060 -> 3.2994
Net -0.0066   Record 4-4   Win Rate 50%   Games 8
Initial VIPR
3.3060
Registry seed
Current VIPR
3.2994
After latest rated game
Net Movement
-0.0066
Current minus initial
Record
4-4
50% win rate · 8 rated games

Storyline

Barbara Dobkins entered VIPR with an initial registry rating of 3.3060. Across 8 rated doubles games, the player went 4-4 and moved -0.0066, finishing at 3.2994.

Why It Moved

AI-generated explanation: The 4-4 record produced +0.0283 from wins and -0.0349 from losses, for a net move of -0.0066. The biggest single-game impact was -0.0124 against Patricia Jones as partner and Judy Arlington / Kelly Evers as opponents. In game #1 on 2026-10-15, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.4151 vs opponent team 3.3309.

Partner Chemistry

Partnership patterns are starting to emerge.

Barbara's most common partner signals so far: Barbara Amato (1-0, 100%), Judy Arlington (1-0, 100%), Laurel Andonian (1-0, 100%), Margaret Adrian (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Streak

Barbara is currently on a 2-game winning streak in rated VIPR games.

Session Summary

DateW-LStartEndNet
2026-10-15 1-3 3.3060 3.2922 -0.0138
2026-10-22 3-1 3.2922 3.2994 +0.0072

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-10-15
Thursday Ladies Ladder League - Fall 2026
Loss 4-11 Patricia Jones Judy Arlington / Kelly Evers 3.3060 -0.0124 3.2936
2 2026-10-15
Thursday Ladies Ladder League - Fall 2026
Loss 5-11 Kathy Battle Judy Arlington / Patricia Jones 3.2936 -0.0057 3.2879
3 2026-10-15
Thursday Ladies Ladder League - Fall 2026
Loss 7-11 Kelly Evers Kathy Battle / Patricia Jones 3.2879 -0.0060 3.2819
4 2026-10-15
Thursday Ladies Ladder League - Fall 2026
Win 11-8 Judy Arlington Kathy Battle / Kelly Evers 3.2819 +0.0103 3.2922
5 2026-10-22
Thursday Ladies Ladder League - Fall 2026
Win 11-9 Margaret Adrian Laurel Andonian / Barbara Amato 3.2922 +0.0074 3.2996
6 2026-10-22
Thursday Ladies Ladder League - Fall 2026
Loss 10-11 Mary LaFrancois Margaret Adrian / Laurel Andonian 3.2996 -0.0108 3.2888
7 2026-10-22
Thursday Ladies Ladder League - Fall 2026
Win 11-4 Laurel Andonian Barbara Amato / Mary LaFrancois 3.2888 +0.0034 3.2922
8 2026-10-22
Thursday Ladies Ladder League - Fall 2026
Win 11-9 Barbara Amato Margaret Adrian / Mary LaFrancois 3.2922 +0.0072 3.2994

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 3.4151 3.3309 -0.0842 -0.0124
2 3.3124 3.4720 +0.1596 -0.0057
3 3.2982 3.4444 +0.1462 -0.0060
4 3.3168 3.3283 -0.0115 +0.0103
5 3.0471 2.9561 +0.0910 +0.0074
6 3.0157 2.9862 -0.0294 -0.0108
7 3.1594 2.8821 +0.2774 +0.0034
8 3.0024 2.9012 +0.1012 +0.0072

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 -0.0842 -> computed delta -0.0124; 3.3060 -0.0124 = 3.2936