Harkness, Justin
Current rating: 1544
Record: 5-3
| Grand Prix Toronto 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 473 | Leung, Allan (1431) | Won 2-1 | +171517 |
| 2modern | 104 | Jette, Francis (1562) | Won 2-1 | +191536 |
| 3modern | 338 | Boutin, Nathaniel (1739) | Won 2-1 | +211557 |
| 4modern | 80 | Anbarsoun, Steven (1527) | Lost 0-2 | -181539 |
| 5modern | 102 | Scott, Dan (1545) | Won 2-1 | +181557 |
| 6modern | 116 | Helmer, Richard (1682) | Lost 0-2 | -161541 |
| 7modern | 221 | Buitenhuis, Josh (1717) | Won 2-0 | +211562 |
| 8modern | 96 | Rowland, Mitchell (1553) | Lost 0-2 | -181544 |
| average opponent: 1594record: 5-3 | new rating: 1544 | |||