Ciurczak, Zachary
Current rating: 1503
Record: 3-3
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 122 | Orr, Jim (1500) | Won 2-0 | +181518 |
| 2sealed | 65 | Greenbaum, Micah (1561) | Won 2-0 | +191537 |
| 3sealed | 38 | Spears, Jason (1520) | Lost 1-2 | -191518 |
| 4sealed | 161 | Force, Jonathan (1517) | Won 2-0 | +181536 |
| 5sealed | 77 | Ross, Jonathan (1560) | Lost 1-2 | -171519 |
| 6sealed | 131 | Magby, Mike (1627) | Lost 1-2 | -161503 |
| average opponent: 1548record: 3-3 | new rating: 1503 | |||