Chapa, Eddie
Current rating: 1500
Record: 6-7
| Grand Prix Houston 2010 (extended) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 176 | Layno, Amado (1500) | Won 2-1 | +191485 |
| 2extended | 55 | Bielick, Scott (1603) | Lost 0-2 | -161469 |
| 3extended | 117 | Pauly, Christopher M (1715) | Won 2-1 | +221491 |
| 4extended | 110 | Borges, Bruno (1478) | Won 2-1 | +181509 |
| 5extended | 114 | Dubiel, Chad (1537) | Lost 0-2 | -171492 |
| 6extended | 104 | Chinchilla, Mario A (1522) | Won 2-0 | +181510 |
| 7extended | 73 | Boggemes, Kyle (1956) | Lost 0-2 | -101500 |
| average opponent: 1616record: 4-3 | new rating: 1500 | |||
| Grand Prix Dallas 2007 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 4 | drayer, ben m (1500) | Won 2-1 | +181518 |
| 2extended | 113 | Larsen, Michael J (1518) | Won 2-0 | +181536 |
| 3extended | 15 | Lowry, William (1541) | Lost 0-0 | -181518 |
| 4extended | 170 | Davis, Randy (1634) | Lost 0-2 | -161502 |
| 5extended | 203 | Monterosso, William J (1500) | Lost 0-2 | -181484 |
| 6extended | 223 | Wilson, Walter (1482) | Lost 0-2 | -181466 |
| average opponent: 1529record: 2-4 | new rating: 1466 | |||