O'Connor, Shannon
Current rating: 1518
Record: 5-4
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 509 | Jones, Christopher (1393) | Lost 1-2 | -201480 |
| 2modern | 1025 | Bender, Joel (1452) | Won 2-1 | +181498 |
| 3modern | 794 | Leal, Christian (1499) | Lost 1-2 | -181480 |
| 4modern | 947 | Weibel, Shawn (1481) | Won 2-1 | +181498 |
| 5modern | 867 | Gertz, James (1500) | Lost 0-2 | -181480 |
| 6modern | 822 | Buchner, Hans (1540) | Won 2-0 | +191499 |
| 7modern | 559 | Patrick, Cameron (1515) | Won 2-1 | +181517 |
| 8modern | 498 | Smeltzer, David (1524) | Won 2-0 | +181535 |
| 9modern | 261 | Miller, Brian D (1574) | Lost 1-2 | -171518 |
| average opponent: 1498record: 5-4 | new rating: 1518 | |||