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.
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.
David has faced Eric Jones 3 times - record: 3-0. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 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
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 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 Diff | Computed 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