O'Dell, John
Current rating: 1448
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1396 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 620 | Simonetta, Casey (1500) | Won 2-0 | +191415 |
| 2sealed | 765 | Humphreys, Daniel (1668) | Won 2-0 | +231438 |
| 3sealed | 793 | Anderson, Ben (1773) | Lost 1-2 | -121426 |
| 4sealed | 796 | Wellinger, Serafin (1950) | Won 2-0 | +271453 |
| 5sealed | 751 | Ganz, Andreas (1849) | Lost 1-2 | -121441 |
| 6sealed | 762 | Hurley, William (1518) | Lost 0-2 | -161425 |
| 7sealed | 846 | Stefanovic, Lou (1545) | Won 2-0 | +201445 |
| 8sealed | 863 | Sanchez, Cesar (1519) | Won 2-0 | +191464 |
| 9sealed | 808 | Fusak, Steven (1554) | Lost 1-2 | -161448 |
| top | average opponent: 1653record: 5-4 | new rating: 1448 | ||
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 17 | Perlin, Leonid (1533) | Lost 1-2 | -161428 |
| 4standard | 231 | Bates, Justin C (1535) | Lost 0-2 | -161412 |
| 5standard | 290 | McCabe, Joey (1501) | Lost 0-2 | -161396 |
| top | average opponent: 1523record: 0-3 | new rating: 1396 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 60 | Kazhdan, Joseph (1463) | Lost 0-2 | -191481 |
| 2extended | 232 | Truong, Long (1506) | Lost 0-2 | -171464 |
| 3extended | 236 | Burton, Cody (1431) | Lost 0-2 | -191445 |
| 4extended | 282 | Ballinger, Charlie (1446) | Won 2-0 | +181463 |
| 5extended | 249 | Blankenship, Blake M (1463) | Won 2-0 | +181481 |
| 6extended | 208 | Russo, Joseph (1480) | Lost 0-2 | -181463 |
| 7extended | 167 | Gay, Kevin (1416) | Lost 0-2 | -191444 |
| top | average opponent: 1458record: 2-5 | new rating: 1444 | ||