Chang, Ryan
Current rating: 1433
Record: 5-9
| Grand Prix Toronto 2019 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 314 | Mark, William (1499) | Won 2-0 | +191483 |
| 2modern | 80 | Zeiler, Daniel (1679) | Won 2-0 | +221505 |
| 3modern | 149 | Duda, Marcin (1457) | Lost 1-2 | -191486 |
| 4modern | 149 | Page, Michael (1520) | Lost 1-2 | -181468 |
| 5modern | 420 | Ramoran, Rusty (1546) | Lost 0-2 | -161452 |
| 6modern | 418 | Fincham, Phil (1401) | Lost 0-2 | -191433 |
| average opponent: 1517record: 2-4 | new rating: 1433 | |||
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 281 | Tessis, Eduardo (1577) | Lost 1-2 | -171483 |
| 2sealed | 546 | Frisch, Andrew (1469) | Won 2-0 | +181501 |
| 3sealed | 380 | Szolopiak, James (1582) | Won 2-1 | +201521 |
| 4sealed | 324 | Jackel-Dewhurst, Gabriel (1453) | Won 2-0 | +161537 |
| 5sealed | 223 | Gnann, Daryl (1525) | Lost 1-2 | -181519 |
| 6sealed | 238 | Wen, Gavin (1529) | Lost 1-2 | -181501 |
| 7sealed | 414 | Russell, Daniel [CAN] (1484) | Lost 0-2 | -181483 |
| 8sealed | 356 | Strong, Angel (1452) | Lost 0-2 | -191464 |
| average opponent: 1509record: 3-5 | new rating: 1464 | |||