Wielinga, William
Current rating: 1480
Record: 7-8
| Grand Prix Montreal 2017 (AKH standard) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 2146 | DArduini, Daniel (1518) | Won 2-0 | +181540 |
| 3standard | 2071 | Rapp, Michael (1375) | Lost 0-2 | -211519 |
| 4standard | 2150 | Smith, Brenda (1394) | Lost 1-2 | -201499 |
| 5standard | 2282 | McEwen, Chris (1497) | Won 2-1 | +181517 |
| 6standard | 2224 | Misner, Chris (1479) | Lost 0-2 | -191498 |
| 7standard | 2225 | Courval, Frederick (1501) | Lost 0-2 | -181480 |
| average opponent: 1461record: 2-4 | new rating: 1480 | |||
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 61 | Zitello, Sean (1469) | Won 2-0 | +171517 |
| 2standard | 134 | Walsh, Jordan (1585) | Lost 0-2 | -161501 |
| 3standard | 428 | Allen, Damien (1498) | Won 2-0 | +181519 |
| 4standard | 291 | McConnell II, Esker (1363) | Won 2-0 | +151534 |
| 5standard | 251 | Naylor, Andrew (1537) | Lost 1-2 | -181516 |
| 6standard | 282 | Mensinger, Trevor (1439) | Won 2-0 | +161532 |
| 7standard | 264 | Docherty, Nathan (1728) | Lost 0-2 | -141518 |
| 8standard | 384 | Stein, Abraham (1768) | Won 2-1 | +221540 |
| 9standard | 204 | Welsh, Matthew (1543) | Lost 0-2 | -181522 |
| average opponent: 1548record: 5-4 | new rating: 1522 | |||