Lamar, Marshall H
Current rating: 1517
Record: 5-4
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 108 | Fusco, Arthur (1500) | Won 2-1 | +181518 |
| 2block | 56 | Watson, Michael (1517) | Lost 0-2 | -181500 |
| 3block | 122 | Favinger, Eric (1501) | Lost 1-2 | -181482 |
| 4block | 272 | Bonham, Nicholas (1425) | Lost 0-2 | -191463 |
| 5block | 244 | Kerr, Jesse (1464) | Lost 0-2 | -181445 |
| 6block | 233 | Filizola, Justin (1446) | Won 2-0 | +181463 |
| 7block | 185 | Leigh, Conor (1464) | Won 2-0 | +181481 |
| 8block | 143 | Umamoto, Lora (1481) | Won 2-1 | +181499 |
| 9block | 107 | Brown, Matthew P (1499) | Won 2-1 | +181517 |
| average opponent: 1477record: 5-4 | new rating: 1517 | |||