Preston, Chris
Current rating: 1651
Record: 18-11
| Grand Prix Toronto 2019 (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 366 | Scott, Jody (1500) | Lost 1-2 | -181501 |
| 2modern | 334 | Yin, David (1482) | Won 2-0 | +181519 |
| 3modern | 426 | Lacey, Andreas (1711) | Won 2-1 | +211540 |
| 4modern | 257 | McCaul, Sean (1620) | Lost 0-2 | -161524 |
| 5modern | 355 | Knox, Connery (1499) | Won 2-1 | +171541 |
| 6modern | 216 | Watt, James (1519) | Won 2-0 | +181559 |
| 7modern | 126 | Goheen, Ben (1573) | Won 2-0 | +181577 |
| 8modern | 136 | Pleau-De Montigny, Nathan (1498) | Won 2-0 | +171594 |
| 9modern | 116 | Bold Wark, Lewis (1791) | Won 2-0 | +211615 |
| 10modern | 400 | Shiels, David (1894) | Won 2-1 | +231638 |
| 11modern | 376 | Thomason, Matthew (1679) | Won 2-0 | +191657 |
| 12modern | 346 | Tse, Felix (2097) | Won 2-1 | +251682 |
| 13modern | 348 | Gaynor, Jonah (1832) | Lost 0-2 | -151667 |
| 14modern | 347 | Liang, Andy (1781) | Lost 1-2 | -161651 |
| 15modern | 380 | Foster, John (1584) | ID | 01651 |
| average opponent: 1671record: 10-4-1 | new rating: 1651 | |||
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 382 | Grabianowski, Edward (1413) | Lost 1-2 | -201480 |
| 2sealed | 367 | Tuckey, James (1540) | Lost 1-2 | -171463 |
| 3sealed | 667 | Maltais, Marc-Andre (1297) | Won 2-0 | +151478 |
| 4sealed | 498 | Shannon, Ryan (1431) | Won 2-1 | +181496 |
| 5sealed | 345 | Hendrickson, Levi (1493) | Won 2-1 | +181514 |
| 6sealed | 237 | Ter Minassian, Thaddee (1462) | Won 2-0 | +171531 |
| 7sealed | 257 | Suppa, Chris (1541) | Won 2-1 | +181549 |
| 8sealed | 86 | Gaieski, Ethan (1721) | Won 2-0 | +211570 |
| 9sealed | 90 | Betit, Jean-Francois (1797) | Won 2-0 | +221592 |
| 10draft | 20 | Gelinas-Proulx, Adam (1583) | Lost 0-2 | -181574 |
| 11draft | 63 | Barski, Robert (1600) | Lost 1-2 | -181556 |
| 12draft | 117 | Pasqualini, Franco (1546) | Lost 0-2 | -181538 |
| 13draft | 73 | Auterhoff, Hayden (1530) | Lost 1-2 | -181520 |
| 14draft | 78 | Dube, Jean-Francois (1493) | Won 2-1 | +171537 |
| 15draft | 89 | Jennings, Adam (1534) | Lost 0-2 | -181519 |
| average opponent: 1532record: 8-7 | new rating: 1519 | |||