Clark, Devon
Current rating: 1543
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 245 | Repa, David (1440) | Lost 1-2 | -191527 |
| 2sealed | 448 | Kelly, Patrick (1327) | Won 2-0 | +141541 |
| 3sealed | 387 | Baquero, Andres (1502) | Won 2-0 | +171558 |
| 4sealed | 164 | Hare, Ryan (1693) | Lost 0-2 | -151543 |
| top | average opponent: 1490record: 2-2 | new rating: 1543 | ||
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 43 | Vance, James (1726) | Lost 0-2 | -141490 |
| 2standard | 588 | Provencal, Edith (1398) | Won 2-0 | +161506 |
| 3standard | 480 | Wyckoff, Daniel (1505) | Draw 1-1 | 01506 |
| 4standard | 508 | Boyling, Adam (1613) | Won 2-0 | +201526 |
| 5standard | 345 | Lawrence, Alexander (1539) | Won 2-0 | +181544 |
| 6standard | 218 | Champagne, Jeff (1636) | Won 2-0 | +201564 |
| 7standard | 140 | Bouzane, Lawrence (1624) | Lost 1-2 | -171547 |
| 8standard | 217 | Parsons, Joel (1529) | Draw 1-1 | -11546 |
| top | average opponent: 1571record: 4-2-2 | new rating: 1546 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 234 | Nodwell, Chris (1539) | Lost 0-2 | -171483 |
| 2standard | 587 | Oostrom, Zack (1482) | Lost 0-2 | -181465 |
| 3standard | 684 | Fleet, Dave (1464) | Won 2-1 | +181483 |
| 4standard | 669 | Pangilinan, Abiel (1483) | Won 2-0 | +181501 |
| 5standard | 399 | Beauchamp, Mark (1567) | Won 2-0 | +191520 |
| 6standard | 276 | Hilson, Ian (1609) | Lost 0-2 | -161504 |
| top | average opponent: 1524record: 3-3 | new rating: 1504 | ||