O'Hara, Robert
Current rating: 1539
Record: 8-6-1
| Grand Prix Calgary 2019 (modern) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 38 | Gibbs, Talisa (1500) | Won 2-0 | +181520 |
| 2modern | 62 | Beattie, Matthew (1522) | Lost 0-2 | -181502 |
| 3modern | 352 | Jaques, Ian (1503) | Won 2-0 | +181520 |
| 4modern | 136 | Comeau, Ryan (1459) | Lost 0-2 | -191501 |
| 5modern | 299 | Allen, Kelli-Ann (1470) | Won 2-0 | +171518 |
| 6modern | 155 | Pavic, Marinko (1676) | Won 2-1 | +211539 |
| 7modern | 168 | Fischer, Marc (1538) | Won 2-1 | +181557 |
| 8modern | 65 | Kasdorf, Matthew (1562) | Lost 0-2 | -181539 |
| average opponent: 1529record: 5-3 | new rating: 1539 | |||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 178 | Jimenez, David (1502) | Lost 0-2 | -181482 |
| 2sealed | 548 | Grinch, Stuart (1482) | Lost 0-2 | -181464 |
| 3sealed | 809 | Gobert-Hicks, Olivia (1464) | Won 0-0 | +181482 |
| 4sealed | 684 | Stepto, Eric (1481) | Won 2-0 | +181500 |
| 5sealed | 530 | Knable, Quinn (1553) | Draw 1-1 | +11501 |
| 6sealed | 483 | Magdaleno, Mike (1542) | Lost 0-2 | -171484 |
| 7sealed | 526 | Dy, Jennard (1479) | Won 2-1 | +181502 |
| average opponent: 1501record: 3-3-1 | new rating: 1502 | |||