VIPR Rating Audit Trail

Douglas Starn

Member ID: TVCPC-P0660   Generated: 2026-10-29 07:46 PM

3.9200 -> 3.8784
Net -0.0416   Record 2-6   Win Rate 25%   Games 8
Initial VIPR
3.9200
Registry seed
Current VIPR
3.8784
After latest rated game
Net Movement
-0.0416
Current minus initial
Record
2-6
25% win rate · 8 rated games

Storyline

Douglas Starn entered VIPR with an initial registry rating of 3.9200. Across 8 rated doubles games, the player went 2-6 and moved -0.0416, finishing at 3.8784.

Why It Moved

AI-generated explanation: The 2-6 record produced +0.0168 from wins and -0.0584 from losses, for a net move of -0.0416. The biggest single-game impact was -0.0181 against Mary Seifert as partner and Ellen Huber / Mike Blackston as opponents. In game #2 on 2026-10-13, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.9632 vs opponent team 3.5759.

Partner Chemistry

Partnership patterns are starting to emerge.

Douglas's most common partner signals so far: Greg Dodge (1-1, 50%), Kevin Eisemon (1-1, 50%), Mary Seifert (0-2, 0%), Paul Randour (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.

Streaks & Rivalries
Rivalry

Douglas has faced Mike Blackston 4 times - record: 1-3. A tough matchup so far.

Session Summary

DateW-LStartEndNet
2026-10-13 1-3 3.9200 3.8931 -0.0269
2026-10-20 1-3 3.8931 3.8784 -0.0147

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-10-13
Santiago Club - Team 1 vs Team 2
Loss 22-24 Greg Dodge Bob Humphrey / Mike Blackston 3.9200 -0.0085 3.9115
2 2026-10-13
Santiago Club - Team 1 vs Team 2
Loss 18-21 Mary Seifert Ellen Huber / Mike Blackston 3.9115 -0.0181 3.8934
3 2026-10-13
Santiago Club - Team 1 vs Team 2
Win 21-10 Kevin Eisemon Mike Blackston / Phil Sciacca 3.8934 +0.0030 3.8964
4 2026-10-13
Santiago Club - Team 1 vs Team 2
Loss 17-21 Tad Leffelman David Koleda / Mike Blackston 3.8964 -0.0033 3.8931
5 2026-10-20
Santiago Club - Team 3 vs Team 1
Loss 18-21 Kevin Eisemon Tony Birchall / James Peavley 3.8931 -0.0106 3.8825
6 2026-10-20
Santiago Club - Team 3 vs Team 1
Loss 14-21 Paul Randour Gene Konzen / Tony Birchall 3.8825 -0.0078 3.8747
7 2026-10-20
Santiago Club - Team 3 vs Team 1
Win 21-18 Greg Dodge Doug Kellogg / Tony Birchall 3.8747 +0.0138 3.8885
8 2026-10-20
Santiago Club - Team 3 vs Team 1
Loss 12-21 Mary Seifert Sue Dahl / Tony Birchall 3.8885 -0.0101 3.8784

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 3.9707 4.0239 +0.0532 -0.0085
2 3.9632 3.5759 -0.3873 -0.0181
3 3.7667 3.4660 +0.3007 +0.0030
4 3.7045 3.9864 +0.2819 -0.0033
5 3.7752 3.7539 -0.0213 -0.0106
6 3.9360 4.0124 +0.0764 -0.0078
7 3.9420 4.0801 -0.1380 +0.0138
8 3.9464 3.9429 -0.0036 -0.0101

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 +0.0532 -> computed delta -0.0085; 3.9200 -0.0085 = 3.9115