VIPR Rating Audit Trail

James Ballard

Member ID: TVCPC-P0665   Generated: 2026-10-29 07:46 PM

3.3900 -> 3.3915
Net +0.0015   Record 3-3   Win Rate 50%   Games 6
Initial VIPR
3.3900
Registry seed
Current VIPR
3.3915
After latest rated game
Net Movement
+0.0015
Current minus initial
Record
3-3
50% win rate · 6 rated games

Storyline

James Ballard entered VIPR with an initial registry rating of 3.3900. Across 6 rated doubles games, the player went 3-3 and moved +0.0015, finishing at 3.3915.

Why It Moved

AI-generated explanation: The 3-3 record produced +0.0267 from wins and -0.0252 from losses, for a net move of +0.0015. The biggest single-game impact was +0.0113 against Kevin Eisemon as partner and James Peavley / Michael Kravatz as opponents. In game #6 on 2026-10-20, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.4804 vs opponent team 3.5249.

Partner Chemistry

Partnership patterns are starting to emerge.

James's most common partner signals so far: Kevin Eisemon (2-0, 100%), Ron Houck (1-1, 50%), Beth Ely (0-1, 0%), Nancy Krau (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

James has faced Kerry Jewell 3 times - record: 1-2. A close matchup worth watching.

Session Summary

DateW-LStartEndNet
2026-10-13 1-2 3.3900 3.3805 -0.0095
2026-10-20 2-1 3.3805 3.3915 +0.0110

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-10-13
Santiago Club - Team 1 vs Team 2
Win 21-16 Kevin Eisemon Phil Sciacca / Kerry Jewell 3.3900 +0.0053 3.3953
2 2026-10-13
Santiago Club - Team 1 vs Team 2
Loss 20-22 Ron Houck Kerry Jewell / Ed Carney 3.3953 -0.0094 3.3859
3 2026-10-13
Santiago Club - Team 1 vs Team 2
Loss 13-21 Nancy Krau Susanne Close / Kerry Jewell 3.3859 -0.0054 3.3805
4 2026-10-20
Santiago Club - Team 3 vs Team 1
Win 21-14 Ron Houck Michael Kravatz / David Choate 3.3805 +0.0101 3.3906
5 2026-10-20
Santiago Club - Team 3 vs Team 1
Loss 20-22 Beth Ely Debra Vena / Michael Kravatz 3.3906 -0.0104 3.3802
6 2026-10-20
Santiago Club - Team 3 vs Team 1
Win 22-20 Kevin Eisemon James Peavley / Michael Kravatz 3.3802 +0.0113 3.3915

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 3.4869 3.3076 +0.1793 +0.0053
2 3.3026 3.3230 +0.0204 -0.0094
3 3.0403 3.2127 +0.1724 -0.0054
4 3.2980 3.3027 -0.0047 +0.0101
5 3.3331 3.3178 -0.0152 -0.0104
6 3.4804 3.5249 -0.0445 +0.0113

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 +0.1793 -> computed delta +0.0053; 3.3900 +0.0053 = 3.3953