VIPR Rating Audit Trail

Pamela Uriarte

Member ID: TVCPC-P0564   Generated: 2026-09-04 12:10 PM

2.0000 -> 2.1128
Net +0.1128   Record 12-12   Win Rate 50%   Games 24
Initial VIPR
2.0000
Registry seed
Current VIPR
2.1128
After latest rated game
Net Movement
+0.1128
Current minus initial
Record
12-12
50% win rate · 24 rated games

Storyline

Pamela Uriarte entered VIPR with an initial registry rating of 2.0000. Across 24 rated doubles games, the player went 12-12 and moved +0.1128, finishing at 2.1128.

Why It Moved

AI-generated explanation: The 12-12 record produced +0.1747 from wins and -0.0619 from losses, for a net move of +0.1128. The biggest single-game impact was +0.0191 against Kim Held as partner and Ann Thiel / Jackie Huckins as opponents. In game #13 on 2026-08-06, the player's team was the lower-rated team, so the win carried a larger gain: player team 2.1787 vs opponent team 2.7133.

Partner Chemistry

Partnership patterns are starting to emerge.

Pamela's most common partner signals so far: Amy Fortier (3-1, 75%), Carol Spano (1-1, 50%), Catherine Rozmiarek (1-1, 50%), Kim Johnson (1-1, 50%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

Pamela has faced Amy Fortier 7 times - record: 3-4. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-07-02 2-2 2.0000 2.0005 +0.0005
2026-07-16 1-3 2.0005 2.0014 +0.0009
2026-07-23 3-1 2.0014 2.0343 +0.0329
2026-08-06 2-2 2.0343 2.0634 +0.0291
2026-08-20 2-2 2.0634 2.0808 +0.0174
2026-09-03 2-2 2.0808 2.1128 +0.0320

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02 Loss 4-11 melinda moreno Amy Fortier / Catherine Rozmiarek 2.0000 -0.0100 1.9900
2 2026-07-02 Loss 5-11 Catherine Rozmiarek Amy Fortier / melinda moreno 1.9900 -0.0100 1.9800
3 2026-07-02 Win 11-2 Amy Fortier Catherine Rozmiarek / melinda moreno 1.9800 +0.0102 1.9902
4 2026-07-02 Win 11-8 Catherine Rozmiarek Amy Fortier / melinda moreno 1.9902 +0.0103 2.0005
5 2026-07-16 Loss 6-11 Barbara Giometti Joy McCormick / Marie Shuey 2.0005 -0.0025 1.9980
6 2026-07-16 Loss 5-11 Marie Shuey Barbara Giometti / Lynn Ratcliff 1.9980 -0.0064 1.9916
7 2026-07-16 Loss 0-11 Lynn Ratcliff Joy McCormick / Barbara Giometti 1.9916 -0.0048 1.9868
8 2026-07-16 Win 11-9 Joy McCormick Marie Shuey / Lynn Ratcliff 1.9868 +0.0146 2.0014
9 2026-07-23 Win 11-9 Amy Fortier Deborah Austin / Barbara Giometti 2.0014 +0.0179 2.0193
10 2026-07-23 Loss 6-11 Barbara Giometti Amy Fortier / Janet Krasinski 2.0193 -0.0083 2.0110
11 2026-07-23 Win 11-6 Janet Krasinski Deborah Austin / Amy Fortier 2.0110 +0.0137 2.0247
12 2026-07-23 Win 11-10 Deborah Austin Barbara Giometti / Janet Krasinski 2.0247 +0.0096 2.0343
13 2026-08-06 Win 11-4 Kim Held Ann Thiel / Jackie Huckins 2.0343 +0.0191 2.0534
14 2026-08-06 Loss 10-11 Marjorie Fassnacht Kim Held / Ann Thiel 2.0534 -0.0012 2.0522
15 2026-08-06 Win 11-6 Ann Thiel Jackie Huckins / Marjorie Fassnacht 2.0522 +0.0149 2.0671
16 2026-08-06 Loss 7-11 Jackie Huckins Kim Held / Marjorie Fassnacht 2.0671 -0.0037 2.0634
17 2026-08-20 Win 11-1 Carol Spano Amy Fortier / Pilar Winters 2.0634 +0.0098 2.0732
18 2026-08-20 Loss 6-11 Amy Fortier Carol Spano / Pilar Winters 2.0732 -0.0008 2.0724
19 2026-08-20 Loss 5-11 Pilar Winters Carol Spano / Amy Fortier 2.0724 -0.0107 2.0617
20 2026-08-20 Win 11-8 Amy Fortier Carol Spano / Pilar Winters 2.0617 +0.0191 2.0808
21 2026-09-03 Win 11-9 Beth Arms Kim Johnson / Carol Spano 2.0808 +0.0180 2.0988
22 2026-09-03 Loss 8-11 Carol Spano Kim Johnson / Beth Arms 2.0988 -0.0005 2.0983
23 2026-09-03 Win 11-10 Kim Johnson Carol Spano / Beth Arms 2.0983 +0.0175 2.1158
24 2026-09-03 Loss 3-11 Kim Johnson Carol Spano / Beth Arms 2.1158 -0.0030 2.1128

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 2.0000 2.0000 +0.0000 -0.0100
2 1.9960 1.9960 +0.0000 -0.0100
3 1.9920 2.0000 -0.0080 +0.0102
4 1.9899 2.0019 -0.0120 +0.0103
5 2.0580 2.3931 +0.3351 -0.0025
6 2.0997 2.2296 +0.1300 -0.0064
7 2.0947 2.2947 +0.2000 -0.0048
8 2.1537 2.3264 -0.1727 +0.0146
9 2.0028 2.3772 -0.3744 +0.0179
10 2.0666 2.1264 +0.0598 -0.0083
11 2.1204 2.2572 -0.1368 +0.0137
12 2.2490 2.2338 +0.0152 +0.0096
13 2.1787 2.7133 -0.5346 +0.0191
14 2.1763 2.6618 +0.4855 -0.0012
15 2.3162 2.5031 -0.1869 +0.0149
16 2.2223 2.4771 +0.2548 -0.0037
17 2.2198 2.2136 +0.0062 +0.0098
18 2.0484 2.5922 +0.5438 -0.0008
19 2.2283 2.2044 -0.0239 -0.0107
20 2.0518 2.5887 -0.5368 +0.0191
21 2.3165 2.6952 -0.3787 +0.0180
22 2.2443 2.8876 +0.6433 -0.0005
23 2.3375 2.6738 -0.3363 +0.0175
24 2.3550 2.6563 +0.3013 -0.0030

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 +0.0000 -> computed delta -0.0100; 2.0000 -0.0100 = 1.9900