VIPR Rating Audit Trail

David Choate

Member ID: TVCPC-P0655   Generated: 2026-10-29 07:46 PM

3.2190 -> 3.2146
Net -0.0044   Record 3-3   Win Rate 50%   Games 6
Initial VIPR
3.2190
Registry seed
Current VIPR
3.2146
After latest rated game
Net Movement
-0.0044
Current minus initial
Record
3-3
50% win rate · 6 rated games

Storyline

David Choate entered VIPR with an initial registry rating of 3.2190. Across 6 rated doubles games, the player went 3-3 and moved -0.0044, finishing at 3.2146.

Why It Moved

AI-generated explanation: The 3-3 record produced +0.0238 from wins and -0.0282 from losses, for a net move of -0.0044. The biggest single-game impact was -0.0101 against Michael Kravatz as partner and James Ballard / Ron Houck as opponents. In game #5 on 2026-10-20, the two teams were nearly even by pre-game team VIPR: player team 3.3027 vs opponent team 3.2980.

Partner Chemistry

Partnership patterns are starting to emerge.

David's most common partner signals so far: Debra Vena (1-1, 50%), James Peavley (1-1, 50%), Michael Kravatz (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

David has faced Eric Jones 3 times - record: 3-0. Clear ownership of the matchup.

Session Summary

DateW-LStartEndNet
2026-10-13 3-0 3.2190 3.2428 +0.0238
2026-10-20 0-3 3.2428 3.2146 -0.0282

Game-By-Game Rating Trail

#DateResultScorePartnerOpponentsBeforeChangeAfter
1 2026-10-13
Santiago Club - Team 3 vs Team 4
Win 21-10 Debra Vena Debbie Gassman / Eric Jones 3.2190 +0.0095 3.2285
2 2026-10-13
Santiago Club - Team 3 vs Team 4
Win 21-18 James Peavley John Gralton / Eric Jones 3.2285 +0.0056 3.2341
3 2026-10-13
Santiago Club - Team 3 vs Team 4
Win 21-19 Michael Kravatz Ted Abelson / Eric Jones 3.2341 +0.0087 3.2428
4 2026-10-20
Santiago Club - Team 3 vs Team 1
Loss 13-21 James Peavley Kevin Eisemon / Ron Houck 3.2428 -0.0093 3.2335
5 2026-10-20
Santiago Club - Team 3 vs Team 1
Loss 14-21 Michael Kravatz James Ballard / Ron Houck 3.2335 -0.0101 3.2234
6 2026-10-20
Santiago Club - Team 3 vs Team 1
Loss 14-21 Debra Vena Beth Ely / Ron Houck 3.2234 -0.0088 3.2146

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 3.2202 3.2023 +0.0179 +0.0095
2 3.3626 3.1988 +0.1638 +0.0056
3 3.3005 3.2552 +0.0454 +0.0087
4 3.3693 3.3920 +0.0227 -0.0093
5 3.3027 3.2980 -0.0047 -0.0101
6 3.2373 3.2804 +0.0430 -0.0088

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 +0.0179 -> computed delta +0.0095; 3.2190 +0.0095 = 3.2285