Storyline
Sue Greco entered VIPR with an initial registry rating of 2.8430. Across 4 rated doubles games, the player went 1-3 and moved -0.0206, finishing at 2.8224.
Why It Moved
AI-generated explanation: The 1-3 record produced +0.0084 from wins and -0.0290 from losses, for a net move of -0.0206. The biggest single-game impact was -0.0106 against Darleen Obrien as partner and Debbie Chaffee / Beth Arms as opponents. In game #1 on 2026-10-01, the two teams were nearly even by pre-game team VIPR: player team 2.8247 vs opponent team 2.8023.
Partnership patterns are starting to emerge.
Sue's most common partner signals so far: Ann Thiel (1-0, 100%), Beth Arms (0-1, 0%), Darleen Obrien (0-1, 0%), Debbie Chaffee (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Sue is currently on a 2-game losing streak in rated VIPR games.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-01 | 1-3 | 2.8430 | 2.8224 | -0.0206 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Loss | 6-11 | Darleen Obrien | Debbie Chaffee / Beth Arms | 2.8430 | -0.0106 | 2.8324 |
| 2 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Win | 11-3 | Ann Thiel | Beth Arms / Darleen Obrien | 2.8324 | +0.0084 | 2.8408 |
| 3 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Loss | 8-11 | Beth Arms | Debbie Chaffee / Ann Thiel | 2.8408 | -0.0097 | 2.8311 |
| 4 | 2026-10-01 Thursday Ladies Ladder League - Fall 2026 |
Loss | 9-11 | Debbie Chaffee | Darleen Obrien / Ann Thiel | 2.8311 | -0.0087 | 2.8224 |
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 | 2.8247 | 2.8023 | -0.0223 | -0.0106 |
| 2 | 2.8775 | 2.8214 | +0.0562 | +0.0084 |
| 3 | 2.8430 | 2.8533 | +0.0103 | -0.0097 |
| 4 | 2.8121 | 2.8588 | +0.0467 | -0.0087 |
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 -0.0223 -> computed delta -0.0106; 2.8430 -0.0106 = 2.8324