Buwalda, Jonathan
Current rating: 1464
Record: 6-8
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 245 | Selsing, Nicholas (1368) | Lost 0-2 | -201443 |
| 2modern | 1006 | Berger, Andrew (1441) | Won 2-0 | +181461 |
| 3modern | 1075 | Doble, Kyle (1505) | Lost 1-2 | -171444 |
| 4modern | 1266 | Seo, Sophia (1479) | Won 2-0 | +191463 |
| 5modern | 959 | Sabor, Colin (1502) | Lost 1-2 | -181445 |
| 6modern | 1027 | Obtinalla, Cediee Israel (1432) | Won 2-0 | +181463 |
| 7modern | 1019 | Novak, Stephen (1519) | Lost 1-2 | -171446 |
| 8modern | 831 | Henson, Dereck (1435) | Won 2-0 | +181464 |
| average opponent: 1460record: 4-4 | new rating: 1464 | |||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 664 | Strothmann, Michael (1464) | Lost 0-2 | -191481 |
| 2modern | 717 | Brown, Thomas W (1545) | Won 2-0 | +201501 |
| 3modern | 706 | DeSantis, Julius (1501) | Lost 1-2 | -181483 |
| 4modern | 935 | Laney, Justin (1446) | Won 2-0 | +171500 |
| 5modern | 738 | Giraldo, Gabriel (1500) | Lost 1-2 | -181482 |
| 6modern | 704 | Stahl, Eric (1437) | Lost 1-2 | -191463 |
| average opponent: 1482record: 2-4 | new rating: 1463 | |||