Piersma, Leah C
Current rating: 1444
Record: 2-5
| Grand Prix Chicago 2009 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 248 | Devlin, Matt (1500) | Lost 1-2 | -181482 |
| 2legacy | 361 | Dupras, Jamie (1482) | Lost 1-2 | -181464 |
| 3legacy | 517 | Immerfall, Curt M (1464) | Lost 0-2 | -181446 |
| 4legacy | 559 | Devol, Bransyn (1446) | Won 2-0 | +181464 |
| 5legacy | 479 | Handy, Tim (1448) | Won 2-0 | +181482 |
| 6legacy | 372 | Mammel, Timothy (1481) | Lost 1-2 | -181464 |
| 7legacy | 317 | Brenizer, Craig D (1355) | Lost 0-2 | -201444 |
| average opponent: 1454record: 2-5 | new rating: 1444 | |||