McDowell, Roy
Current rating: 1250
Record: 1-16
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1338 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 391 | Vantyghem, Adrian (1500) | Lost 1-2 | -151323 |
| 2sealed | 490 | Maltais, Marc-Andre (1465) | Lost 0-2 | -161307 |
| 3sealed | 657 | Eboh, Ify (1464) | Lost 0-2 | -151292 |
| 4sealed | 672 | Fraser, Alex (1447) | Lost 0-2 | -151277 |
| 5sealed | 597 | Rajan, Aswin (1428) | Won 2-0 | +211298 |
| 6sealed | 508 | Kraemer, Daniel (1447) | Lost 0-2 | -161282 |
| 7sealed | 417 | Romm, Zeev (1345) | Lost 0-2 | -171265 |
| 8sealed | 321 | Cormier, Rejean (1410) | Lost 0-2 | -151250 |
| average opponent: 1438record: 1-7 | new rating: 1250 | |||
| Grand Prix Toronto 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 101 | Weymouth, Mark (1473) | Lost 0-2 | -181482 |
| 2modern | 399 | LaPlante, Ryan (1415) | Lost 0-2 | -201462 |
| 3modern | 420 | Wells, James R (1464) | Lost 1-2 | -181444 |
| 4modern | 470 | Bruce, Andrea (1444) | Lost 0-2 | -181426 |
| 5modern | 447 | Jeakins, Jeff (1428) | Lost 0-2 | -181408 |
| 6modern | 395 | Hewitt, Donald R (1410) | Lost 1-2 | -181390 |
| 7modern | 335 | Magtoto, Genevieve (1393) | Lost 1-2 | -181372 |
| 8modern | 272 | Banho, Paulo (1409) | Lost 1-2 | -171355 |
| 9modern | 236 | Romm, Zeev (1392) | Lost 0-2 | -171338 |
| average opponent: 1425record: 0-9 | new rating: 1338 | |||