Montgomery, John
Current rating: 1544
Record: 8-6
| Grand Prix Reno 2020 (THB limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Siino, Anthony (1555) | Lost 0-2 | -181524 |
| 2sealed | 219 | Roberts, Payton (1481) | Won 2-1 | +171541 |
| 3sealed | 187 | Rude, Benjamin (1409) | Won 2-1 | +161557 |
| 4sealed | 101 | Ng, Derek (1678) | Lost 0-2 | -161541 |
| 5sealed | 154 | Jen, Ivan (1576) | Won 2-1 | +191560 |
| 6sealed | 111 | Benjamin, Matt (1708) | Lost 0-2 | -161544 |
| average opponent: 1568record: 3-3 | new rating: 1544 | |||
| Grand Prix Oakland 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 213 | Bergeron, Mitchell (1422) | Lost 0-2 | -191481 |
| 2modern | 398 | Mayer, Jacob (1484) | Won 2-0 | +181499 |
| 3modern | 306 | Haimes, Max (1587) | Lost 1-2 | -171482 |
| 4modern | 471 | Hinely, Kody (1399) | Won 2-0 | +171499 |
| 5modern | 320 | Peven, Jon (1505) | Won 2-1 | +181517 |
| 6modern | 243 | Guiang, Mark (1809) | Won 2-1 | +231540 |
| 7modern | 178 | Ciccolo, Peter (1516) | Lost 1-2 | -181522 |
| 8modern | 199 | Dunne, Christopher (1640) | Won 2-0 | +201542 |
| average opponent: 1545record: 5-3 | new rating: 1542 | |||