VIPR Rating Audit Trail

Kim Johnson

Member ID: TVCPC-P0277   Generated: 2026-10-29 07:46 PM

2.9300 -> 2.8883
Net -0.0417   Record 11-13   Win Rate 46%   Games 24
Initial VIPR
2.9300
Registry seed
Current VIPR
2.8883
After latest rated game
Net Movement
-0.0417
Current minus initial
Record
11-13
46% win rate · 24 rated games

Storyline

Kim Johnson entered VIPR with an initial registry rating of 2.9300. Across 24 rated doubles games, the player went 11-13 and moved -0.0417, finishing at 2.8883.

Why It Moved

AI-generated explanation: The 11-13 record produced +0.0884 from wins and -0.1301 from losses, for a net move of -0.0417. The biggest single-game impact was -0.0180 against Carol Spano as partner and Beth Arms / Pamela Uriarte as opponents. In game #13 on 2026-09-03, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.6952 vs opponent team 2.3165.

Partner Chemistry

Partnership patterns are starting to emerge.

Kim's most common partner signals so far: Beth Arms (3-3, 50%), Barbara Amato (1-2, 33%), Pamela Uriarte (1-1, 50%), Mary LaFrancois (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

Kim has faced Beth Arms 11 times - record: 5-6. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-07-09 1-3 2.9300 2.9053 -0.0247
2026-07-16 1-3 2.9053 2.8829 -0.0224
2026-08-06 4-0 2.8829 2.9131 +0.0302
2026-09-03 2-2 2.9131 2.9101 -0.0030
2026-09-10 1-3 2.9101 2.8888 -0.0213
2026-09-24 2-2 2.8888 2.8883 -0.0005

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-09
Thursday Ladies Ladder League - SUMMER 2026
Win 11-4 Dawn Mead Nancy Krau / Mary LaFrancois 2.9300 +0.0085 2.9385
2 2026-07-09
Thursday Ladies Ladder League - SUMMER 2026
Loss 2-11 Barbara Amato Mary LaFrancois / Dawn Mead 2.9385 -0.0074 2.9311
3 2026-07-09
Thursday Ladies Ladder League - SUMMER 2026
Loss 5-11 Mary LaFrancois Nancy Krau / Barbara Amato 2.9311 -0.0131 2.9180
4 2026-07-09
Thursday Ladies Ladder League - SUMMER 2026
Loss 9-11 Nancy Krau Dawn Mead / Barbara Amato 2.9180 -0.0127 2.9053
5 2026-07-16
Thursday Ladies Ladder League - SUMMER 2026
Loss 10-11 Tammy Wilson Kathi Lancaster / Beth Arms 2.9053 -0.0047 2.9006
6 2026-07-16
Thursday Ladies Ladder League - SUMMER 2026
Loss 5-11 Fern S Reisinger Beth Arms / Tammy Wilson 2.9006 -0.0098 2.8908
7 2026-07-16
Thursday Ladies Ladder League - SUMMER 2026
Loss 8-11 Beth Arms Kathi Lancaster / Fern S Reisinger 2.8908 -0.0113 2.8795
8 2026-07-16
Thursday Ladies Ladder League - SUMMER 2026
Win 11-6 Kathi Lancaster Tammy Wilson / Fern S Reisinger 2.8795 +0.0034 2.8829
9 2026-08-06
Thursday Ladies Ladder League - SUMMER 2026
Win 11-10 Beth Arms Debbie Chaffee / Pilar Winters 2.8829 +0.0056 2.8885
10 2026-08-06
Thursday Ladies Ladder League - SUMMER 2026
Win 11-9 Pilar Winters Debbie Chaffee / Wendy Bachman 2.8885 +0.0090 2.8975
11 2026-08-06
Thursday Ladies Ladder League - SUMMER 2026
Win 11-3 Debbie Chaffee Beth Arms / Wendy Bachman 2.8975 +0.0047 2.9022
12 2026-08-06
Thursday Ladies Ladder League - SUMMER 2026
Win 11-3 Wendy Bachman Beth Arms / Pilar Winters 2.9022 +0.0109 2.9131
13 2026-09-03
Thursday Ladies Ladder League - SUMMER 2026
Loss 9-11 Carol Spano Beth Arms / Pamela Uriarte 2.9131 -0.0180 2.8951
14 2026-09-03
Thursday Ladies Ladder League - SUMMER 2026
Win 11-8 Beth Arms Carol Spano / Pamela Uriarte 2.8951 +0.0005 2.8956
15 2026-09-03
Thursday Ladies Ladder League - SUMMER 2026
Win 11-10 Pamela Uriarte Carol Spano / Beth Arms 2.8956 +0.0175 2.9131
16 2026-09-03
Thursday Ladies Ladder League - SUMMER 2026
Loss 3-11 Pamela Uriarte Carol Spano / Beth Arms 2.9131 -0.0030 2.9101
17 2026-09-10
Thursday Ladies Ladder League - SUMMER 2026
Loss 6-11 Beth Arms Diane Polansky / Barbara Amato 2.9101 -0.0094 2.9007
18 2026-09-10
Thursday Ladies Ladder League - SUMMER 2026
Loss 7-11 Darleen Obrien Barbara Amato / Beth Arms 2.9007 -0.0103 2.8904
19 2026-09-10
Thursday Ladies Ladder League - SUMMER 2026
Loss 5-11 Barbara Amato Diane Polansky / Darleen Obrien 2.8904 -0.0087 2.8817
20 2026-09-10
Thursday Ladies Ladder League - SUMMER 2026
Win 11-3 Diane Polansky Beth Arms / Darleen Obrien 2.8817 +0.0071 2.8888
21 2026-09-24
Thursday Ladies Ladder League - Summer 2026
Loss 10-11 Beth Arms Mary LaFrancois / Barbara Amato 2.8888 -0.0100 2.8788
22 2026-09-24
Thursday Ladies Ladder League - Summer 2026
Loss 9-11 Mary LaFrancois Barbara Amato / Beth Arms 2.8788 -0.0117 2.8671
23 2026-09-24
Thursday Ladies Ladder League - Summer 2026
Win 11-8 Barbara Amato Mary LaFrancois / Beth Arms 2.8671 +0.0104 2.8775
24 2026-09-24
Thursday Ladies Ladder League - Summer 2026
Win 11-8 Beth Arms Mary LaFrancois / Barbara Amato 2.8775 +0.0108 2.8883

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 2.9330 2.8821 +0.0509 +0.0085
2 2.8008 2.8925 +0.0917 -0.0074
3 2.8925 2.7797 -0.1127 -0.0131
4 2.9044 2.8100 -0.0944 -0.0127
5 2.7764 2.9805 +0.2041 -0.0047
6 2.7613 2.7676 +0.0063 -0.0098
7 2.8926 2.8486 -0.0439 -0.0113
8 2.9834 2.7101 +0.2734 +0.0034
9 2.8674 2.7053 +0.1621 +0.0056
10 2.7066 2.6719 +0.0347 +0.0090
11 2.8687 2.6659 +0.2028 +0.0047
12 2.6709 2.7035 -0.0325 +0.0109
13 2.6952 2.3165 -0.3787 -0.0180
14 2.8876 2.2443 +0.6433 +0.0005
15 2.3375 2.6738 -0.3363 +0.0175
16 2.3550 2.6563 +0.3013 -0.0030
17 2.8823 2.9021 +0.0198 -0.0094
18 2.8530 2.8427 -0.0102 -0.0103
19 2.8588 2.9027 +0.0439 -0.0087
20 2.9469 2.8430 +0.1039 +0.0071
21 2.8574 2.8585 +0.0010 -0.0100
22 2.8960 2.8357 -0.0603 -0.0117
23 2.8560 2.8693 -0.0133 +0.0104
24 2.8480 2.8773 -0.0294 +0.0108

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 +0.0509 -> computed delta +0.0085; 2.9300 +0.0085 = 2.9385