Lockhart, Colin
Current rating: 1453
Record: 4-7
| Grand Prix Toronto 2018 (modern) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 55 | Tetreault, Gregory (1419) | Lost 0-2 | -191447 |
| 2modern | 473 | Salzman, Warren (1482) | Won 2-0 | +191466 |
| 3modern | 644 | Morgan, Taylor (1418) | Won 2-1 | +171483 |
| 4modern | 446 | Nagel, Adam (1520) | Lost 0-2 | -171466 |
| 5modern | 460 | Plouffe, Jeremi (1772) | Lost 1-2 | -131453 |
| average opponent: 1522record: 2-3 | new rating: 1453 | |||
| Grand Prix Dallas-Fort Worth 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 496 | Noctem, Tera (1500) | Lost 0-2 | -181482 |
| 2modern | 608 | Beck, Brad (1482) | Won 2-0 | +181500 |
| 3modern | 650 | Tarnowski, Benjamin (1566) | Lost 0-2 | -171483 |
| 4modern | 668 | Topper, Scott (1481) | Won 2-1 | +181501 |
| 5modern | 524 | Koh, Isaac (1504) | Lost 0-2 | -181483 |
| 6modern | 779 | Moore, Adam (1528) | Lost 1-2 | -171466 |
| average opponent: 1510record: 2-4 | new rating: 1466 | |||