Storyline
Debbie Hellman entered VIPR with an initial registry rating of 3.2950. Across 6 rated doubles games, the player went 2-4 and moved -0.0105, finishing at 3.2845.
Why It Moved
AI-generated explanation: The 2-4 record produced +0.0243 from wins and -0.0348 from losses, for a net move of -0.0105. The biggest single-game impact was +0.0171 against John Gralton as partner and Alejandra Bussey / James Peavley as opponents. In game #1 on 2026-10-13, the player's team was the lower-rated team, so the win carried a larger gain: player team 3.2743 vs opponent team 3.5837.
Partnership patterns are starting to emerge.
Debbie's most common partner signals so far: Barb O'Connor (1-1, 50%), Debbie Gassman (0-2, 0%), John Gralton (1-0, 100%), Bruce Ashley (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Debbie has faced Alejandra Bussey 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-13 | 1-2 | 3.2950 | 3.2985 | +0.0035 |
| 2026-10-20 | 1-2 | 3.2985 | 3.2845 | -0.0140 |
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 | 21-18 | John Gralton | Alejandra Bussey / James Peavley | 3.2950 | +0.0171 | 3.3121 |
| 2 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 12-21 | Barb O'Connor | Erin DeFrates / Alejandra Bussey | 3.3121 | -0.0053 | 3.3068 |
| 3 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 20-22 | Debbie Gassman | Alejandra Bussey / Debra Vena | 3.3068 | -0.0083 | 3.2985 |
| 4 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Loss | 14-21 | Debbie Gassman | Kirstin Burri / Ally McHugh | 3.2985 | -0.0081 | 3.2904 |
| 5 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Win | 21-17 | Barb O'Connor | Cookie Sciacca / Kirstin Burri | 3.2904 | +0.0072 | 3.2976 |
| 6 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Loss | 19-21 | Bruce Ashley | Kirstin Burri / Phil Sciacca | 3.2976 | -0.0131 | 3.2845 |
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 | 3.2743 | 3.5837 | -0.3093 | +0.0171 |
| 2 | 3.3973 | 3.5751 | +0.1778 | -0.0053 |
| 3 | 3.2681 | 3.3280 | +0.0599 | -0.0083 |
| 4 | 3.2598 | 3.3266 | +0.0668 | -0.0081 |
| 5 | 3.3881 | 3.2900 | +0.0981 | +0.0072 |
| 6 | 3.4093 | 3.2966 | -0.1127 | -0.0131 |
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 -0.3093 -> computed delta +0.0171; 3.2950 +0.0171 = 3.3121