VIPR Rating Audit Trail

Cathy Loughridge

Member ID: TVCPC-P0421   Generated: 2026-09-04 12:10 PM

2.0000 -> 1.8728
Net -0.1272   Record 3-24   Win Rate 11%   Games 27
Initial VIPR
2.0000
Registry seed
Current VIPR
1.8728
After latest rated game
Net Movement
-0.1272
Current minus initial
Record
3-24
11% win rate · 27 rated games

Storyline

Cathy Loughridge entered VIPR with an initial registry rating of 2.0000. Across 27 rated doubles games, the player went 3-24 and moved -0.1272, finishing at 1.8728.

Why It Moved

AI-generated explanation: The 3-24 record produced +0.0372 from wins and -0.1644 from losses, for a net move of -0.1272. The biggest single-game impact was +0.0153 against Cindy Halcomb as partner and Marie Shuey / Lynn Ratcliff as opponents. In game #6 on 2026-07-23, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.1043 vs opponent team 2.3092.

Partner Chemistry

Partnership patterns are starting to emerge.

Cathy's most common partner signals so far: Helen Burns (1-6, 14%), Christine Martin (0-4, 0%), Peggy Salazar (1-2, 33%), Catherine Rozmiarek (0-3, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

Cathy has faced Helen Burns 13 times - record: 1-12. A tough matchup so far.

Session Summary

DateW-LStartEndNet
2026-07-02 0-4 2.0000 1.9662 -0.0338
2026-07-23 1-3 1.9662 1.9715 +0.0053
2026-08-06 1-3 1.9715 1.9571 -0.0144
2026-08-13 0-4 1.9571 1.9311 -0.0260
2026-08-20 0-4 1.9311 1.9046 -0.0265
2026-08-27 0-3 1.9046 1.8838 -0.0208
2026-09-03 1-3 1.8838 1.8728 -0.0110

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02 Loss 5-11 Peggy Salazar Christine Martin / Helen Burns 2.0000 -0.0083 1.9917
2 2026-07-02 Loss 8-11 Barbara Giometti Christine Martin / Peggy Salazar 1.9917 -0.0097 1.9820
3 2026-07-02 Loss 2-11 Helen Burns Barbara Giometti / Peggy Salazar 1.9820 -0.0082 1.9738
4 2026-07-02 Loss 10-11 Christine Martin Barbara Giometti / Helen Burns 1.9738 -0.0076 1.9662
5 2026-07-23 Loss 0-11 Lynn Ratcliff Marie Shuey / Missi Horton 1.9662 -0.0037 1.9625
6 2026-07-23 Win 11-8 Cindy Halcomb Marie Shuey / Lynn Ratcliff 1.9625 +0.0153 1.9778
7 2026-07-23 Loss 3-11 Missi Horton Cindy Halcomb / Lynn Ratcliff 1.9778 -0.0040 1.9738
8 2026-07-23 Loss 3-11 Marie Shuey Cindy Halcomb / Missi Horton 1.9738 -0.0023 1.9715
9 2026-08-06 Loss 8-11 Helen Burns Christine Martin / Peggy Salazar 1.9715 -0.0082 1.9633
10 2026-08-06 Win 11-2 Peggy Salazar Helen Burns / Catherine Rozmiarek 1.9633 +0.0109 1.9742
11 2026-08-06 Loss 4-11 Catherine Rozmiarek Christine Martin / Helen Burns 1.9742 -0.0070 1.9672
12 2026-08-06 Loss 10-11 Christine Martin Peggy Salazar / Catherine Rozmiarek 1.9672 -0.0101 1.9571
13 2026-08-13 Loss 6-11 Helen Burns Marie Shuey / Christine Martin 1.9571 -0.0057 1.9514
14 2026-08-13 Loss 5-11 Christine Martin Marie Shuey / Helen Burns 1.9514 -0.0061 1.9453
15 2026-08-13 Loss 4-11 Marie Shuey Christine Martin / Helen Burns 1.9453 -0.0089 1.9364
16 2026-08-13 Loss 8-11 Helen Burns Marie Shuey / Christine Martin 1.9364 -0.0053 1.9311
17 2026-08-20 Loss 4-11 Peggy Salazar Christine Martin / Helen Burns 1.9311 -0.0068 1.9243
18 2026-08-20 Loss 4-11 Lynne Becker Christine Martin / Peggy Salazar 1.9243 -0.0078 1.9165
19 2026-08-20 Loss 8-11 Helen Burns Lynne Becker / Peggy Salazar 1.9165 -0.0058 1.9107
20 2026-08-20 Loss 3-11 Christine Martin Lynne Becker / Helen Burns 1.9107 -0.0061 1.9046
21 2026-08-27 Loss 7-11 Helen Burns Peggy Salazar / Catherine Rozmiarek 1.9046 -0.0086 1.8960
22 2026-08-27 Loss 5-11 Kelly Gallagher Peggy Salazar / Helen Burns 1.8960 -0.0076 1.8884
23 2026-08-27 Loss 3-11 Catherine Rozmiarek Kelly Gallagher / Helen Burns 1.8884 -0.0046 1.8838
24 2026-09-03 Loss 4-11 Catherine Rozmiarek Helen Burns / Bev Buescher 1.8838 -0.0068 1.8770
25 2026-09-03 Win 11-5 Helen Burns Bev Buescher / Catherine Rozmiarek 1.8770 +0.0110 1.8880
26 2026-09-03 Loss 7-11 Bev Buescher Helen Burns / Catherine Rozmiarek 1.8880 -0.0078 1.8802
27 2026-09-03 Loss 5-11 Bev Buescher Helen Burns / Catherine Rozmiarek 1.8802 -0.0074 1.8728

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 2.0131 2.0724 +0.0593 -0.0083
2 2.0398 2.0502 +0.0103 -0.0097
3 2.0111 2.0744 +0.0633 -0.0082
4 2.0099 2.0948 +0.0849 -0.0076
5 2.0742 2.3335 +0.2593 -0.0037
6 2.1043 2.3092 -0.2049 +0.0153
7 2.1092 2.3501 +0.2409 -0.0040
8 2.0681 2.4245 +0.3564 -0.0023
9 2.0064 2.0683 +0.0619 -0.0082
10 1.9928 2.0240 -0.0312 +0.0109
11 1.9761 2.0849 +0.1088 -0.0070
12 2.0099 2.0058 -0.0041 -0.0101
13 1.9953 2.1553 +0.1601 -0.0057
14 1.9975 2.1426 +0.1451 -0.0061
15 2.0510 2.0891 +0.0380 -0.0089
16 1.9836 2.1622 +0.1786 -0.0053
17 1.9766 2.0925 +0.1158 -0.0068
18 2.0139 2.0918 +0.0778 -0.0078
19 1.9676 2.1233 +0.1557 -0.0058
20 1.9784 2.1230 +0.1447 -0.0061
21 1.9574 2.0051 +0.0477 -0.0086
22 1.9984 2.0818 +0.0834 -0.0076
23 1.9143 2.1247 +0.2104 -0.0046
24 1.9097 2.0253 +0.1156 -0.0068
25 1.9412 1.9764 -0.0352 +0.0110
26 1.9203 1.9972 +0.0769 -0.0078
27 1.9125 2.0050 +0.0925 -0.0074

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 +0.0593 -> computed delta -0.0083; 2.0000 -0.0083 = 1.9917