VIPR Rating Audit Trail

Marie Shuey

Member ID: TVCPC-P0413   Generated: 2026-09-04 12:10 PM

2.3420 -> 2.2941
Net -0.0479   Record 7-9   Win Rate 44%   Games 16
Initial VIPR
2.3420
Registry seed
Current VIPR
2.2941
After latest rated game
Net Movement
-0.0479
Current minus initial
Record
7-9
44% win rate · 16 rated games

Storyline

Marie Shuey entered VIPR with an initial registry rating of 2.3420. Across 16 rated doubles games, the player went 7-9 and moved -0.0479, finishing at 2.2941.

Why It Moved

AI-generated explanation: The 7-9 record produced +0.0415 from wins and -0.0894 from losses, for a net move of -0.0479. The biggest single-game impact was -0.0153 against Lynn Ratcliff as partner and Cindy Halcomb / Cathy Loughridge as opponents. In game #11 on 2026-07-23, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.3092 vs opponent team 2.1043.

Partner Chemistry

Partnership patterns are starting to emerge.

Marie's most common partner signals so far: Cindy Halcomb (1-2, 33%), Christine Martin (2-0, 100%), Barbara Giometti (1-1, 50%), Cathy Loughridge (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

Marie has faced Cathy Loughridge 5 times - record: 4-1. Clear ownership of the matchup.

Session Summary

DateW-LStartEndNet
2026-07-09 2-2 2.3420 2.3344 -0.0076
2026-07-16 1-3 2.3344 2.3101 -0.0243
2026-07-23 1-3 2.3101 2.2859 -0.0242
2026-08-13 3-1 2.2859 2.2941 +0.0082

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-09 Win 11-9 Cindy Halcomb Kelly Gallagher / Barbara Giometti 2.3420 +0.0051 2.3471
2 2026-07-09 Win 11-3 Barbara Giometti Cindy Halcomb / Kelly Gallagher 2.3471 +0.0131 2.3602
3 2026-07-09 Loss 9-11 Kelly Gallagher Cindy Halcomb / Barbara Giometti 2.3602 -0.0109 2.3493
4 2026-07-09 Loss 6-11 Cindy Halcomb Kelly Gallagher / Barbara Giometti 2.3493 -0.0149 2.3344
5 2026-07-16 Win 11-6 Joy McCormick Barbara Giometti / Pamela Uriarte 2.3344 +0.0025 2.3369
6 2026-07-16 Loss 5-11 Pamela Uriarte Barbara Giometti / Lynn Ratcliff 2.3369 -0.0064 2.3305
7 2026-07-16 Loss 5-11 Barbara Giometti Joy McCormick / Lynn Ratcliff 2.3305 -0.0058 2.3247
8 2026-07-16 Loss 9-11 Lynn Ratcliff Joy McCormick / Pamela Uriarte 2.3247 -0.0146 2.3101
9 2026-07-23 Loss 3-11 Cindy Halcomb Lynn Ratcliff / Missi Horton 2.3101 -0.0103 2.2998
10 2026-07-23 Win 11-0 Missi Horton Lynn Ratcliff / Cathy Loughridge 2.2998 +0.0037 2.3035
11 2026-07-23 Loss 8-11 Lynn Ratcliff Cindy Halcomb / Cathy Loughridge 2.3035 -0.0153 2.2882
12 2026-07-23 Loss 3-11 Cathy Loughridge Cindy Halcomb / Missi Horton 2.2882 -0.0023 2.2859
13 2026-08-13 Win 11-6 Christine Martin Helen Burns / Cathy Loughridge 2.2859 +0.0057 2.2916
14 2026-08-13 Win 11-5 Helen Burns Christine Martin / Cathy Loughridge 2.2916 +0.0061 2.2977
15 2026-08-13 Loss 4-11 Cathy Loughridge Christine Martin / Helen Burns 2.2977 -0.0089 2.2888
16 2026-08-13 Win 11-8 Christine Martin Helen Burns / Cathy Loughridge 2.2888 +0.0053 2.2941

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 2.3766 2.1915 +0.1851 +0.0051
2 2.2114 2.3235 -0.1121 +0.0131
3 2.2836 2.2512 -0.0324 -0.0109
4 2.3826 2.1960 -0.1866 -0.0149
5 2.3931 2.0580 +0.3351 +0.0025
6 2.0997 2.2296 +0.1300 -0.0064
7 2.2364 2.3904 +0.1540 -0.0058
8 2.3264 2.1537 -0.1727 -0.0146
9 2.3507 2.3416 -0.0091 -0.0103
10 2.3335 2.0742 +0.2593 +0.0037
11 2.3092 2.1043 -0.2049 -0.0153
12 2.0681 2.4245 +0.3564 -0.0023
13 2.1553 1.9953 +0.1601 +0.0057
14 2.1426 1.9975 +0.1451 +0.0061
15 2.0510 2.0891 +0.0380 -0.0089
16 2.1622 1.9836 +0.1786 +0.0053

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 +0.1851 -> computed delta +0.0051; 2.3420 +0.0051 = 2.3471