MacDonald, Jason
Current rating: 1601
Record: 18-15
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 173 | Hegardt, Colt (1500) | Won 2-1 | +181513 |
| 2sealed | 180 | Kendall, John (1552) | Won 2-1 | +191532 |
| 3sealed | 164 | Simpson, Cameron (1560) | Won 2-1 | +181550 |
| 4sealed | 88 | Bach, Austin (1775) | Won 2-0 | +221572 |
| 5sealed | 83 | Kanegawa, Toshiya (1999) | Won 2-1 | +251597 |
| 6sealed | 38 | Wong, Gary (1823) | Lost 1-2 | -131584 |
| 7sealed | 105 | Hoffmann, Matthew (1704) | Won 2-1 | +201604 |
| 8sealed | 60 | Saxe, Ryan (1696) | Lost 0-2 | -171587 |
| 9sealed | 168 | Provenzano, Matthew (1542) | Won 2-1 | +181605 |
| 10draft | 137 | Cheng, David (1589) | Lost 0-2 | -191586 |
| 11draft | 132 | Larsen, Luke (1589) | Won 0-0 | +181604 |
| 12draft | 18 | Ward, Daniel (2009) | Won 2-1 | +251629 |
| 13draft | 179 | Fang, Percy (2018) | Lost 0-2 | -111618 |
| 14draft | 64 | Wong, Daniel (1682) | Lost 0-2 | -171601 |
| top | average opponent: 1717record: 9-5 | new rating: 1601 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 431 | Todd, Cohner (1500) | Won 2-0 | +181528 |
| 2sealed | 100 | Taylor, Joshua (1461) | Won 2-1 | +161544 |
| 3sealed | 830 | Yu, Jarvis (1788) | Lost 0-2 | -131531 |
| 4sealed | 556 | Ceraso, Marc (1514) | Lost 1-2 | -191512 |
| 5sealed | 615 | Hince, Abram (1528) | Lost 0-2 | -171495 |
| top | average opponent: 1558record: 2-3 | new rating: 1495 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1144 | Hines, Michael (1500) | Won 2-0 | +191465 |
| 2sealed | 1075 | Ma, Kouming (1518) | Lost 0-2 | -171448 |
| 3sealed | 1216 | Alvarez, Daniel (1496) | Won 2-1 | +191467 |
| 4sealed | 1164 | Halecky, Joshua (1516) | Won 2-0 | +191486 |
| 5sealed | 1126 | Daggett, Anthony (1618) | Lost 1-2 | -161470 |
| 6sealed | 1132 | Chu, Terence (1480) | Won 2-1 | +191489 |
| 7sealed | 1124 | Jenkins, Michael (1481) | Won 2-1 | +171506 |
| 8sealed | 1129 | Sanguinetti, James (1640) | Won 2-1 | +211527 |
| 9sealed | 1046 | Canet, Sean H (1583) | Lost 1-2 | -171510 |
| top | average opponent: 1537record: 6-3 | new rating: 1510 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 618 | McCracken, Blake (1512) | Won 2-0 | +181518 |
| 2sealed | 701 | Gill, Alden (1517) | Lost 1-2 | -181500 |
| 3sealed | 581 | R957, Matthew (1482) | Lost 0-2 | -181482 |
| 4sealed | 848 | Mueller, Jeremy (1501) | Lost 0-2 | -181464 |
| 5sealed | 788 | Bailey, Jack (1465) | Lost 1-2 | -181446 |
| top | average opponent: 1496record: 1-4 | new rating: 1446 | ||