Zhao, David [CAN]
Current rating: 1684
Record: 15-6
| Grand Prix Toronto 2019 (modern) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 142 | Brogaard, Dustin (1500) | Won 2-0 | +171528 |
| 2modern | 147 | Lafortune, Nicho (1518) | Lost 1-2 | -181510 |
| 3modern | 286 | Brown, Dylan [USA] (1696) | Won 2-0 | +221532 |
| 4modern | 231 | Arsenault, Caleb (1525) | Won 2-0 | +181550 |
| 5modern | 227 | Pite, Derek (1873) | Won 2-0 | +231573 |
| 6modern | 88 | Bracuk, Joel (1547) | Won 2-0 | +181591 |
| 7modern | 81 | Kulisz, Chris (1580) | Won 2-0 | +181609 |
| 8modern | 25 | Yam, Richard (1585) | Won 2-1 | +171626 |
| 9modern | 28 | Liang, Andy (1736) | Lost 0-2 | -161610 |
| 10modern | 405 | Li, Eric (1769) | Won 2-1 | +211631 |
| 11modern | 363 | Fortier, Thomas (1619) | Lost 1-2 | -181613 |
| 12modern | 397 | Prince, Clinton (1592) | Won 2-0 | +171630 |
| 13modern | 382 | Arquette, James (1601) | Won 2-1 | +181648 |
| 14modern | 368 | Lam, David (1716) | Won 2-0 | +191667 |
| 15modern | 357 | Evely, Dalton (1598) | Won 2-1 | +171684 |
| average opponent: 1630record: 12-3 | new rating: 1684 | |||
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 355 | Valcarcel, Justin (1518) | Won 2-0 | +181518 |
| 2sealed | 170 | Swire, Nathan (1520) | Won 2-1 | +181536 |
| 3sealed | 221 | Fay, Timothy (1668) | Lost 1-2 | -151521 |
| 4sealed | 436 | Mimms, Daniel (1519) | Lost 0-2 | -181503 |
| 5sealed | 380 | Boeckmann, Trevor (1668) | Won 2-0 | +211524 |
| 6sealed | 220 | McKay, Brendan (1804) | Lost 1-2 | -131511 |
| average opponent: 1616record: 3-3 | new rating: 1511 | |||