O'Brien, Graham
Current rating: 1600
| Grand Prix Montreal 2016 (EMN limited) | starting rating: 1609 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2130 | Brichta, Jean-Paul (1605) | Lost 1-2 | -181591 |
| 2sealed | 2496 | Farquhar, John (1428) | Won 2-0 | +151606 |
| 3sealed | 2469 | Fortin, Alexandre (1546) | Won 0-0 | +171623 |
| 4sealed | 2186 | Green, Kenneth (1556) | Won 2-0 | +171640 |
| 5sealed | 2115 | Butterfield, Nathaniel (1462) | Won 2-0 | +151655 |
| 6sealed | 2103 | Westbrook, Matthew (1961) | Lost 1-2 | -131642 |
| 7sealed | 2131 | Lippert, Ian (1460) | Won 2-0 | +151657 |
| 8sealed | 2111 | Blais Bourget, Gabriel (1633) | Won 0-0 | +171674 |
| 9sealed | 2109 | Bellefeuille, Philippe (1715) | Lost 0-2 | -171657 |
| 10draft | 2070 | Weibel, Shawn (1539) | Won 2-0 | +161673 |
| 11draft | 2074 | Nguyen, Lan (1704) | Lost 0-2 | -171656 |
| 12draft | 2075 | Wolman, Joshua (1690) | Lost 1-2 | -181638 |
| 13draft | 2088 | Conrad, Cory (1453) | Lost 0-2 | -211617 |
| 14draft | 2079 | Robidoux, Marc-Andre (1675) | Lost 1-2 | -171600 |
| top | average opponent: 1602record: 7-7 | new rating: 1600 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 56 | Meyer Odell, Tristan (1500) | Won 2-0 | +171577 |
| 2standard | 43 | Renaud, Samson (1518) | Lost 1-2 | -191558 |
| 3standard | 428 | Le, Ky-Phuong (1502) | Won 2-0 | +171575 |
| 4standard | 190 | Boutin, Nathaniel (1668) | Lost 0-2 | -161559 |
| 5standard | 432 | Moon, Andrew (1469) | Won 2-0 | +161575 |
| 6standard | 397 | Semchison, AJ (1518) | Won 2-1 | +171592 |
| 7standard | 140 | Messenger-Lehmann, Tyler (1555) | Won 2-0 | +181610 |
| 8standard | 88 | Kang, Michael (1552) | Won 2-1 | +171627 |
| 9standard | 136 | Weber, William (1668) | Lost 0-2 | -181609 |
| top | average opponent: 1550record: 6-3 | new rating: 1609 | ||
| Grand Prix Ottawa 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 297 | Chong, Jack (1539) | Won 2-1 | +191519 |
| 2sealed | 19 | Savoie, Marc-Olivier (1580) | Won 2-0 | +191538 |
| 3sealed | 94 | Gifford, Sean (1549) | Lost 1-2 | -181520 |
| 4sealed | 325 | Harabas, Chris (1407) | Won 2-1 | +161536 |
| 5sealed | 200 | Pagano, Matthew (1505) | Won 2-0 | +171553 |
| 6sealed | 137 | Poirier, Eric (1655) | Lost 0-2 | -161537 |
| 7sealed | 119 | Jean, Andre-Philippe (1477) | Won 2-0 | +171554 |
| 8sealed | 160 | Sakiyama, Jun (1536) | Won 2-0 | +181572 |
| 9sealed | 66 | Roesler, Michael (1516) | Won 2-1 | +171589 |
| 10draft | 21 | Villeneuve, Sebastien (1731) | Lost 1-2 | -161573 |
| 11draft | 72 | Silverstein, Kevin (1578) | Won 2-0 | +181591 |
| 12draft | 60 | Storey, Derek (1622) | Lost 0-2 | -171574 |
| 13draft | 38 | Lepock, Michael (1567) | Lost 1-2 | -181556 |
| 14draft | 19 | Proano, Gina (1713) | Won 2-1 | +211577 |
| 15draft | 52 | Sachlas, Peter (1671) | Lost 1-2 | -171560 |
| top | average opponent: 1576record: 9-6 | new rating: 1560 | ||