O'Shea, Ryan
Current rating: 1395
Record: 4-10
| Grand Prix Atlanta 2018 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 231 | Vogelgesang, Clayton (1500) | Lost 1-2 | -171447 |
| 2modern | 542 | Rabb, Tyler (1423) | Lost 1-2 | -191428 |
| 3modern | 658 | Lanceford, Callie (1491) | Won 2-0 | +201448 |
| 4modern | 601 | Davis, Joseph (1427) | Lost 1-2 | -191429 |
| 5modern | 653 | Lopez, Cesar (1429) | Won 2-0 | +181447 |
| 6modern | 532 | Turner, Jonathan (1430) | Lost 0-2 | -181429 |
| 7modern | 490 | Phillips, Chris (1481) | Lost 1-2 | -171412 |
| 8modern | 410 | Lin, Jasmine (1486) | Lost 1-2 | -171395 |
| average opponent: 1458record: 2-6 | new rating: 1395 | |||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 502 | Lolos, Arthur (1500) | Lost 1-2 | -181482 |
| 2sealed | 556 | Brecher, Doug (1482) | Lost 0-2 | -181464 |
| 3sealed | 789 | LeClair, Greg (1473) | Lost 0-2 | -181446 |
| 4sealed | 834 | Kondriakan, Dmitriy (1449) | Lost 0-2 | -181428 |
| 5sealed | 744 | Holt, Nick (1428) | Won 2-0 | +181446 |
| 6sealed | 631 | Kaldenberg, Tyler (1446) | Won 2-0 | +181464 |
| average opponent: 1463record: 2-4 | new rating: 1464 | |||