Mason, Mark
Current rating: 1478
Record: 7-8-1
| Grand Prix Atlanta 2019 (legacy) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 316 | Nielsen, Dakota (1500) | Draw 1-1 | 01502 |
| 2legacy | 231 | Baker, Corey (1499) | Lost 0-2 | -181484 |
| 3legacy | 430 | Wayne, Eric (1481) | Lost 0-2 | -191465 |
| 4legacy | 460 | Gwynn, Michael (1407) | Won 2-0 | +171482 |
| 5legacy | 392 | Norris, Carter (1484) | Lost 0-2 | -181464 |
| 6legacy | 364 | Combs, Brandon (1436) | Lost 0-2 | -181446 |
| 7legacy | 306 | Henry, Anthony (1219) | Won 2-0 | +141460 |
| 8legacy | 246 | Bearden, Jason (1450) | Won 2-0 | +181478 |
| average opponent: 1434record: 3-4-1 | new rating: 1478 | |||
| Grand Prix Milwaukee 2016 (KLD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 330 | Roberts, James (1438) | Won 2-1 | +171517 |
| 2sealed | 254 | Webster, Jonathon (1503) | Won 2-1 | +181535 |
| 3sealed | 50 | Seanger, Nicholas (1467) | Won 2-1 | +161551 |
| 4sealed | 139 | Kanegawa, Toshiya (1864) | Lost 0-2 | -121539 |
| 5sealed | 218 | Franco, Rodrigo (1587) | Lost 1-2 | -171522 |
| 6sealed | 345 | Tate, Taylor (1519) | Won 2-1 | +181540 |
| 7sealed | 260 | Holzschuh, Ariel (1506) | Lost 0-2 | -191521 |
| 8sealed | 237 | Hagemeister, Brandon (1437) | Lost 0-2 | -191502 |
| average opponent: 1540record: 4-4 | new rating: 1502 | |||