Marshall, Josh
Current rating: 1504
Record: 9-11
| Grand Prix Toronto 2018 (modern) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 499 | Vannavong, Sai (1361) | Won 2-0 | +161444 |
| 2modern | 179 | Laskar, David (1601) | Lost 1-2 | -151429 |
| 3modern | 361 | Phillips, Cassandra (1557) | Lost 1-2 | -161413 |
| 4modern | 598 | Nokes, Blair (1483) | Won 2-0 | +201433 |
| 5modern | 473 | Kusakabe, Kyohei (1617) | Won 2-0 | +211454 |
| 6modern | 482 | Gallop, Sean (1490) | Won 2-0 | +191473 |
| 7modern | 218 | Stewart, Joshua (1822) | Won 2-1 | +241497 |
| 8modern | 97 | Laberge, Vincent (1727) | Won 2-1 | +221519 |
| 9modern | 58 | Perreault, Marc-Andre (1503) | Won 2-0 | +181537 |
| 10modern | 56 | Dilks, Matthew (1821) | Lost 1-2 | -131524 |
| 11modern | 71 | Cruz, Lucas (1782) | Won 2-1 | +221546 |
| 12modern | 74 | League, Charles (1831) | Lost 0-2 | -131533 |
| 13modern | 97 | Rubin, Benjamin (1892) | Lost 1-2 | -111522 |
| 14modern | 96 | Lacourse, Jean-Denis (1552) | Lost 1-2 | -181504 |
| average opponent: 1645record: 8-6 | new rating: 1504 | |||
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 175 | Shen, Kent (1500) | Lost 0-2 | -181482 |
| 2sealed | 384 | Graham, Jeff [CAN] (1382) | Won 2-1 | +161498 |
| 3sealed | 476 | Connelly, Daniel C (1569) | Lost 0-2 | -171481 |
| 4sealed | 535 | Desrochers, Joseph (1483) | Lost 0-2 | -171464 |
| 5sealed | 544 | Greenawalt, Breanna (1465) | Lost 1-2 | -181446 |
| 6sealed | 521 | Kruse, Deric (1446) | Lost 1-2 | -181428 |
| average opponent: 1474record: 1-5 | new rating: 1428 | |||