Marriott, Andrew
Current rating: 1447
| Grand Prix Liverpool 2017 (XLN limited) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 342 | Hunter, Jay (1437) | Won 2-0 | +171487 |
| 2sealed | 64 | Tenenbaum, Amiel (1790) | Won 2-0 | +241511 |
| 3sealed | 42 | Jbeili, Reginald (1588) | Lost 0-2 | -171494 |
| 4sealed | 169 | Holman, Kane (1342) | Lost 0-2 | -211473 |
| 5sealed | 263 | Riley, Alex (1777) | Lost 1-2 | -121461 |
| 6sealed | 372 | De Vareilles, Leonard (1720) | Lost 1-2 | -141447 |
| top | average opponent: 1609record: 2-4 | new rating: 1447 | ||
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 499 | Morrell, Steven (1469) | Lost 0-2 | -181470 |
| top | record: 0-1 | new rating: 1470 | ||
| Grand Prix Manchester 2014 (Theros block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 283 | Cabannes, Francois (1500) | Lost 0-2 | -181482 |
| 2block | 573 | Murray, David (1526) | Won 2-0 | +191501 |
| 3block | 382 | Turnbull, Dexter (1499) | Won 2-0 | +181519 |
| 4block | 289 | Gilligan, Daniel (1799) | Lost 0-2 | -131506 |
| 5block | 376 | Johns, Darryl (1451) | Lost 0-2 | -191487 |
| 6block | 68 | Hudson, Dominic (1482) | Won 2-1 | +181505 |
| 7block | 101 | Gerschenson, Immanuel (1600) | Lost 1-2 | -171488 |
| top | average opponent: 1551record: 3-4 | new rating: 1488 | ||