O'Donnell, Jon
Current rating: 1586
Record: 13-9
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 146 | Phillips, Cassandra (1500) | Lost 1-2 | -181504 |
| 2standard | 407 | Cortina, Austin (1539) | Won 2-0 | +181522 |
| 3standard | 374 | Moore, Shawn (1419) | Lost 1-2 | -201502 |
| 4standard | 605 | York, Derrick (1476) | Won 2-0 | +181520 |
| 5standard | 450 | Bacala, Stephen (1547) | Won 2-1 | +181538 |
| 6standard | 382 | Downing, Bruce (1575) | Lost 1-2 | -171521 |
| 7standard | 335 | Arsenault, Peter (1505) | Won 2-1 | +181539 |
| 8standard | 245 | Geissler, Kevin (1663) | Won 2-1 | +201559 |
| 9standard | 257 | Gajary, Nick (1616) | Won 2-0 | +191578 |
| 10standard | 678 | Laporte, Gabryel (1513) | Won 2-1 | +171595 |
| 11standard | 653 | Cook, Bryant (1756) | Won 2-1 | +211616 |
| 12standard | 623 | Hull, Ben (1989) | Lost 0-2 | -121604 |
| 13standard | 654 | Dojcsak, Mike (1594) | Lost 1-2 | -181586 |
| average opponent: 1592record: 8-5 | new rating: 1586 | |||
| Grand Prix Pittsburgh 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 68 | Butko, Andrew (1500) | Lost 1-2 | -181482 |
| 2standard | 328 | Headlee, Tyler (1481) | Won 2-0 | +181500 |
| 3standard | 373 | Gibbs, Michael (1446) | Won 2-0 | +171517 |
| 4standard | 249 | McClure, Micheal (1556) | Lost 1-2 | -171500 |
| 5standard | 523 | Kelley, Chad (1452) | Won 2-0 | +171517 |
| 6standard | 403 | Lategan, Matthew (1483) | Lost 1-2 | -191498 |
| 7standard | 381 | Prinsen, Kyle (1501) | Won 2-1 | +181516 |
| 8standard | 333 | Stein, Abraham (1726) | Won 2-0 | +221538 |
| 9standard | 226 | Walters, William (1653) | Lost 0-2 | -161522 |
| average opponent: 1533record: 5-4 | new rating: 1522 | |||