Chang, Chingsung
Current rating: 1410
Record: 6-12
| Grand Prix Providence 2015 (DTK standard) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 146 | Larnard, Jeffrey (1500) | Won 2-0 | +201434 |
| 2standard | 39 | Magalhaes, Breno (1618) | Won 2-0 | +211455 |
| 3standard | 50 | Ulanov, Denis (1761) | Lost 0-2 | -131442 |
| 4standard | 141 | McKinney, Michael (1502) | Lost 0-2 | -171425 |
| 5standard | 274 | Dufour, Jimmy (1587) | Lost 0-2 | -151410 |
| top | average opponent: 1594record: 2-3 | new rating: 1410 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 400 | Weisheit, Hunter (1508) | Lost 0-2 | -171449 |
| 2modern | 416 | Stewart, James (1468) | Lost 1-2 | -181431 |
| 3modern | 520 | Holmes, Dana (1464) | Won 2-1 | +191450 |
| 4modern | 537 | Zielinski, Jason (1419) | Lost 1-2 | -191431 |
| 5modern | 481 | Ditzel, Amanda (1464) | Lost 0-2 | -171414 |
| top | average opponent: 1465record: 1-4 | new rating: 1414 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 525 | Tremblay, Sebastien (1536) | Lost 0-2 | -181484 |
| 2sealed | 659 | Shahzad D., (1482) | Lost 0-2 | -181466 |
| top | average opponent: 1509record: 0-2 | new rating: 1466 | ||
| Grand Prix Providence 2011 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 495 | V., Daniel (1500) | Won 2-1 | +181518 |
| 2legacy | 473 | Norton, Matt M (1519) | Won 2-0 | +181536 |
| 3legacy | 429 | Fedun, Matthew (1529) | Lost 0-2 | -181518 |
| 4legacy | 521 | Timlin, Timothy (1529) | Won 2-1 | +181536 |
| 5legacy | 512 | Eggert, Robert (1483) | Lost 1-2 | -191517 |
| 6legacy | 517 | Wowelko, Nicholas (1661) | Lost 1-2 | -151502 |
| top | average opponent: 1537record: 3-3 | new rating: 1502 | ||