Bouwman, Mark
Current rating: 1425
Record: 2-6
| Grand Prix Portland 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 80 | Crosman, Nat (1500) | Lost 1-2 | -181482 |
| 2modern | 670 | James, Stuart (1456) | Lost 1-2 | -181464 |
| 3modern | 865 | McDermott, Walker (1464) | Won 2-1 | +181482 |
| 4modern | 577 | Emerson, Kevin (1482) | Lost 1-2 | -181464 |
| 5modern | 751 | Rose, Carter (1441) | Lost 1-2 | -191445 |
| 6modern | 644 | Yin, Kuanny (1445) | Lost 0-2 | -181427 |
| 7modern | 535 | Bradley, Mitchell (1411) | Lost 1-2 | -181409 |
| 8modern | 438 | Turner, Max (1312) | Won 2-0 | +161425 |
| average opponent: 1439record: 2-6 | new rating: 1425 | |||