VIPR Rating Audit Trail

Gayle Kiefer

Member ID: TVCPC-P0288   Generated: 2026-09-04 12:10 PM

3.0780 -> 3.0039
Net -0.0741   Record 7-13   Win Rate 35%   Games 20
Initial VIPR
3.0780
Registry seed
Current VIPR
3.0039
After latest rated game
Net Movement
-0.0741
Current minus initial
Record
7-13
35% win rate · 20 rated games

Storyline

Gayle Kiefer entered VIPR with an initial registry rating of 3.0780. Across 20 rated doubles games, the player went 7-13 and moved -0.0741, finishing at 3.0039.

Why It Moved

AI-generated explanation: The 7-13 record produced +0.0505 from wins and -0.1246 from losses, for a net move of -0.0741. The biggest single-game impact was -0.0169 against Julee Johanson as partner and Lori Pulford / Joy McCormick as opponents. In game #9 on 2026-08-06, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.0115 vs opponent team 2.7187.

Partner Chemistry

Partnership patterns are starting to emerge.

Gayle's most common partner signals so far: Dana Gainer (1-2, 33%), Julee Johanson (0-3, 0%), Karen Scott (2-0, 100%), Joy McCormick (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

Gayle has faced Julee Johanson 7 times - record: 3-4. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-07-09 0-4 3.0780 3.0368 -0.0412
2026-07-23 3-1 3.0368 3.0585 +0.0217
2026-08-06 1-3 3.0585 3.0301 -0.0284
2026-08-13 1-3 3.0301 3.0122 -0.0179
2026-08-20 2-2 3.0122 3.0039 -0.0083

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-09 Loss 8-11 Dana Gainer Diane Polansky / Julee Johanson 3.0780 -0.0091 3.0689
2 2026-07-09 Loss 5-11 Julee Johanson Diane Polansky / Dana Gainer 3.0689 -0.0106 3.0583
3 2026-07-09 Loss 5-11 Diane Polansky Julee Johanson / Dana Gainer 3.0583 -0.0126 3.0457
4 2026-07-09 Loss 9-11 Dana Gainer Diane Polansky / Julee Johanson 3.0457 -0.0089 3.0368
5 2026-07-23 Win 11-8 Connie Nowell Dana Gainer / Julee Johanson 3.0368 +0.0088 3.0456
6 2026-07-23 Loss 4-11 Julee Johanson Connie Nowell / Andrea Fairchild 3.0456 -0.0066 3.0390
7 2026-07-23 Win 11-5 Andrea Fairchild Dana Gainer / Connie Nowell 3.0390 +0.0058 3.0448
8 2026-07-23 Win 11-8 Dana Gainer Julee Johanson / Andrea Fairchild 3.0448 +0.0137 3.0585
9 2026-08-06 Loss 5-11 Julee Johanson Lori Pulford / Joy McCormick 3.0585 -0.0169 3.0416
10 2026-08-06 Win 11-2 Karen Scott Joy McCormick / Julee Johanson 3.0416 +0.0026 3.0442
11 2026-08-06 Loss 7-11 Joy McCormick Lori Pulford / Karen Scott 3.0442 -0.0028 3.0414
12 2026-08-06 Loss 6-11 Lori Pulford Julee Johanson / Karen Scott 3.0414 -0.0113 3.0301
13 2026-08-13 Win 11-8 Karen Scott Debbie Fischer / Renae Kray 3.0301 +0.0109 3.0410
14 2026-08-13 Loss 4-11 Renae Kray Karen Scott / Lori Pulford 3.0410 -0.0098 3.0312
15 2026-08-13 Loss 7-11 Lori Pulford Debbie Fischer / Karen Scott 3.0312 -0.0078 3.0234
16 2026-08-13 Loss 9-11 Debbie Fischer Renae Kray / Lori Pulford 3.0234 -0.0112 3.0122
17 2026-08-20 Win 11-10 Rose Kopja Renae Kray / Joy McCormick 3.0122 +0.0040 3.0162
18 2026-08-20 Win 11-8 Mary LaFrancois Joy McCormick / Rose Kopja 3.0162 +0.0047 3.0209
19 2026-08-20 Loss 9-11 Joy McCormick Renae Kray / Mary LaFrancois 3.0209 -0.0047 3.0162
20 2026-08-20 Loss 6-11 Renae Kray Rose Kopja / Mary LaFrancois 3.0162 -0.0123 3.0039

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 3.0056 3.0353 +0.0296 -0.0091
2 3.0311 3.0098 -0.0213 -0.0106
3 3.0779 2.9846 -0.0934 -0.0126
4 3.0058 3.0452 +0.0394 -0.0089
5 3.0355 2.9943 +0.0412 +0.0088
6 3.0273 3.1507 +0.1234 -0.0066
7 3.1516 2.9979 +0.1537 +0.0058
8 2.9945 3.1296 -0.1350 +0.0137
9 3.0115 2.7187 -0.2927 -0.0169
10 3.0444 2.7136 +0.3308 +0.0026
11 2.7327 3.0495 +0.3169 -0.0028
12 3.0442 2.9971 -0.0471 -0.0113
13 3.0462 3.0790 -0.0328 +0.0109
14 3.0385 3.0445 +0.0060 -0.0098
15 3.0346 3.1113 +0.0767 -0.0078
16 3.0635 3.0231 -0.0404 -0.0112
17 2.9939 2.7524 +0.2415 +0.0040
18 2.9433 2.7378 +0.2055 +0.0047
19 2.7438 2.9493 +0.2055 -0.0047
20 3.0203 2.9406 -0.0798 -0.0123

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 +0.0296 -> computed delta -0.0091; 3.0780 -0.0091 = 3.0689