Holb, Justin D
Current rating: 1489
Record: 5-6-2
| Grand Prix Chicago 2009 (legacy) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 93 | Lampert, Michael (1500) | Draw 1-1 | +11449 |
| 2legacy | 324 | Linse, Joshua (1500) | Won 2-0 | +191468 |
| 3legacy | 197 | Bettens, Joshua D (1505) | Draw 1-1 | +11469 |
| 4legacy | 367 | Hartten, Chris (1553) | Lost 0-1 | -171452 |
| 5legacy | 436 | Rodriguez, Andres (1416) | Won 2-0 | +181470 |
| 6legacy | 334 | Piccari, Anthony (1518) | Won 1-0 | +191489 |
| 7legacy | 243 | Chang, Roland (1536) | Won 1-0 | +181507 |
| 8legacy | 165 | Copowycz, Alex (1503) | Lost 1-2 | -181489 |
| average opponent: 1504record: 4-2-2 | new rating: 1489 | |||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 91 | Kho, Richard (1465) | Won 2-1 | +171517 |
| 3extended | 94 | Wiitanen, Josh (1655) | Lost 1-2 | -151502 |
| 4extended | 157 | Wilson, Ryan (1498) | Lost 1-2 | -181484 |
| 5extended | 245 | Berni, Roberto (1464) | Lost 1-2 | -191465 |
| 6extended | 264 | Mohr, Bryan (1513) | Lost 0-2 | -171448 |
| average opponent: 1519record: 1-4 | new rating: 1448 | |||