VIPR Rating Audit Trail

Rose Hoffmann

Member ID: TVCPC-P0409   Generated: 2026-10-29 07:46 PM

3.1390 -> 3.2162
Net +0.0772   Record 14-6   Win Rate 70%   Games 20
Initial VIPR
3.1390
Registry seed
Current VIPR
3.2162
After latest rated game
Net Movement
+0.0772
Current minus initial
Record
14-6
70% win rate · 20 rated games

Storyline

Rose Hoffmann entered VIPR with an initial registry rating of 3.1390. Across 20 rated doubles games, the player went 14-6 and moved +0.0772, finishing at 3.2162.

Why It Moved

AI-generated explanation: The 14-6 record produced +0.1312 from wins and -0.0540 from losses, for a net move of +0.0772. The biggest single-game impact was +0.0141 against Debbie Fischer as partner and Kathy Battle / Sally Naumann as opponents. In game #3 on 2026-07-02, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.1203 vs opponent team 3.2731.

Partner Chemistry

Partnership patterns are starting to emerge.

Rose's most common partner signals so far: Debbie Fischer (3-1, 75%), Brenda Leardi (2-0, 100%), Lori Novack (1-1, 50%), Denise Vinci (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

Rose has faced Debbie Fischer 8 times - record: 4-4. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-07-02 3-1 3.1390 3.1627 +0.0237
2026-07-16 2-2 3.1627 3.1566 -0.0061
2026-07-23 4-0 3.1566 3.1985 +0.0419
2026-09-17 3-1 3.1985 3.2160 +0.0175
2026-10-01 2-2 3.2160 3.2162 +0.0002

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-07-02
Thursday Ladies Ladder League - SUMMER 2026
Win 11-6 Sally Naumann Deborah Ahart / Debbie Fischer 3.1390 +0.0090 3.1480
2 2026-07-02
Thursday Ladies Ladder League - SUMMER 2026
Win 11-6 Kathy Battle Deborah Ahart / Sally Naumann 3.1480 +0.0109 3.1589
3 2026-07-02
Thursday Ladies Ladder League - SUMMER 2026
Win 11-8 Debbie Fischer Kathy Battle / Sally Naumann 3.1589 +0.0141 3.1730
4 2026-07-02
Thursday Ladies Ladder League - SUMMER 2026
Loss 0-11 Deborah Ahart Kathy Battle / Debbie Fischer 3.1730 -0.0103 3.1627
5 2026-07-16
Thursday Ladies Ladder League - SUMMER 2026
Loss 10-11 Shawn Spaulding Debbie Fischer / Marcie Stern 3.1627 -0.0075 3.1552
6 2026-07-16
Thursday Ladies Ladder League - SUMMER 2026
Win 11-3 Marcie Stern Shawn Spaulding / ANN DREWEK 3.1552 +0.0023 3.1575
7 2026-07-16
Thursday Ladies Ladder League - SUMMER 2026
Loss 6-11 ANN DREWEK Debbie Fischer / Shawn Spaulding 3.1575 -0.0046 3.1529
8 2026-07-16
Thursday Ladies Ladder League - SUMMER 2026
Win 11-9 Debbie Fischer Marcie Stern / ANN DREWEK 3.1529 +0.0037 3.1566
9 2026-07-23
Thursday Ladies Ladder League - SUMMER 2026
Win 11-9 Lori Novack Gretchen S Kerr / Debbie Fischer 3.1566 +0.0099 3.1665
10 2026-07-23
Thursday Ladies Ladder League - SUMMER 2026
Win 11-7 Denise Vinci Gretchen S Kerr / Lori Novack 3.1665 +0.0094 3.1759
11 2026-07-23
Thursday Ladies Ladder League - SUMMER 2026
Win 11-10 Debbie Fischer Denise Vinci / Lori Novack 3.1759 +0.0118 3.1877
12 2026-07-23
Thursday Ladies Ladder League - SUMMER 2026
Win 11-8 Gretchen S Kerr Denise Vinci / Debbie Fischer 3.1877 +0.0108 3.1985
13 2026-09-17
Thursday Ladies Ladder League - Summer 2026
Win 11-8 Brenda Leardi Tricia Gallagher / Diane Polansky 3.1985 +0.0069 3.2054
14 2026-09-17
Thursday Ladies Ladder League - Summer 2026
Loss 8-11 Kathi Lancaster Brenda Leardi / Tricia Gallagher 3.2054 -0.0126 3.1928
15 2026-09-17
Thursday Ladies Ladder League - Summer 2026
Win 11-3 Tricia Gallagher Diane Polansky / Kathi Lancaster 3.1928 +0.0109 3.2037
16 2026-09-17
Thursday Ladies Ladder League - Summer 2026
Win 11-7 Diane Polansky Brenda Leardi / Kathi Lancaster 3.2037 +0.0123 3.2160
17 2026-10-01
Thursday Ladies Ladder League - Fall 2026
Win 11-6 Stephanie Chen Debbie Fischer / Brenda Leardi 3.2160 +0.0080 3.2240
18 2026-10-01
Thursday Ladies Ladder League - Fall 2026
Loss 9-11 Lori Novack Debbie Fischer / Stephanie Chen 3.2240 -0.0093 3.2147
19 2026-10-01
Thursday Ladies Ladder League - Fall 2026
Win 11-8 Brenda Leardi Lori Novack / Stephanie Chen 3.2147 +0.0112 3.2259
20 2026-10-01
Thursday Ladies Ladder League - Fall 2026
Loss 2-11 Debbie Fischer Lori Novack / Brenda Leardi 3.2259 -0.0097 3.2162

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 3.1758 3.1420 +0.0338 +0.0090
2 3.1916 3.2221 -0.0305 +0.0109
3 3.1203 3.2731 -0.1529 +0.0141
4 3.1782 3.1695 -0.0087 -0.0103
5 3.0797 3.1702 +0.0905 -0.0075
6 3.1854 2.8286 +0.3568 +0.0023
7 2.8605 3.0689 +0.2084 -0.0046
8 3.1472 2.8887 +0.2586 +0.0037
9 3.1680 3.1653 +0.0027 +0.0099
10 3.1979 3.1786 +0.0194 +0.0094
11 3.1580 3.2208 -0.0629 +0.0118
12 3.1669 3.1941 -0.0272 +0.0108
13 3.2049 3.0925 +0.1124 +0.0069
14 3.2121 3.1179 -0.0942 -0.0126
15 3.1137 3.1456 -0.0319 +0.0109
16 3.1345 3.2176 -0.0831 +0.0123
17 3.2661 3.1970 +0.0691 +0.0080
18 3.2143 3.2372 +0.0229 -0.0093
19 3.2194 3.2607 -0.0413 +0.0112
20 3.1942 3.2053 +0.0111 -0.0097

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 +0.0338 -> computed delta +0.0090; 3.1390 +0.0090 = 3.1480