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.
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.
James has faced Kerry Jewell 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 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
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 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 Diff | Computed 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