Cheung, Zachary
Current rating: 1505
| Grand Prix Portland 2018 (modern) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 516 | Martel, Ashton (1450) | Lost 1-2 | -201506 |
| 2modern | 487 | Crane, Jay (1429) | Won 2-0 | +171523 |
| 3modern | 402 | Gomez, Douglas (1623) | Lost 0-2 | -161507 |
| 4modern | 714 | Johnston, Julian (1501) | Won 2-0 | +171524 |
| 5modern | 540 | Gonzales, Benny (1437) | Lost 1-2 | -191505 |
| top | average opponent: 1488record: 2-3 | new rating: 1505 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 357 | Colmenero, Clifton (1658) | Lost 0-2 | -151513 |
| 2modern | 947 | Brenner, Keith (1484) | Won 2-1 | +171530 |
| 3modern | 977 | Fisher, Wilson (1574) | Won 2-1 | +191549 |
| 4modern | 644 | Christian, Michael (1431) | Lost 0-2 | -201529 |
| 5modern | 917 | Millslagle, Tyler (1425) | Won 2-1 | +161545 |
| 6modern | 774 | Genova, Daniel (1515) | Lost 0-2 | -191526 |
| 7modern | 2146 | Shibla, Devyn (1523) | Won 2-0 | +181544 |
| 8modern | 744 | Gabellini, Andrea (1509) | Lost 0-2 | -181526 |
| top | average opponent: 1515record: 4-4 | new rating: 1526 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2121 | Bundy, Dylan (1500) | Won 2-0 | +181518 |
| 2modern | 2214 | Henly, Neil (1632) | Lost 1-2 | -161502 |
| 3modern | 2481 | Petersen, David (1540) | Lost 1-2 | -171485 |
| 4modern | 2574 | Snucins, Andrew (1482) | Won 2-0 | +181503 |
| 5modern | 2484 | Donelson, Bryce (1606) | Won 2-0 | +201523 |
| 6modern | 2286 | Nelstead, Kyle (1521) | Won 2-0 | +181541 |
| 7modern | 2241 | Zollner, Matthew (1591) | Won 2-1 | +181559 |
| 8modern | 2155 | Hampton, Jesse (1850) | Lost 0-2 | -121547 |
| 9modern | 2291 | Erickson, Michael (1521) | Lost 0-2 | -191528 |
| top | average opponent: 1583record: 5-4 | new rating: 1528 | ||