Tsafalas, Sam
Current rating: 1518
| Grand Prix Calgary 2019 (modern) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 28 | Miller, Jesse (1447) | Lost 1-2 | -191501 |
| 2modern | 245 | Snucins, Andrew (1436) | Won 2-1 | +161517 |
| 3modern | 292 | Goss, Riley (1582) | Won 2-1 | +201537 |
| 4modern | 170 | Westby, Andrew (1519) | Lost 0-2 | -191518 |
| top | average opponent: 1496record: 2-2 | new rating: 1518 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2337 | Campbell, Aaron (1615) | Won 2-1 | +211500 |
| 2modern | 2141 | Turner, Brendan (1518) | Won 2-0 | +181518 |
| 3modern | 2040 | Van Cleave, Trey (1895) | Draw 1-1 | +71525 |
| 4modern | 2173 | Strain, Liam (1521) | Won 2-0 | +181543 |
| 5modern | 2084 | Piehl, Austin (1556) | Won 2-1 | +181561 |
| 6modern | 2041 | Black, Samuel (1942) | Lost 0-2 | -111550 |
| 7modern | 2121 | Bergeron, Julien (1675) | Won 2-1 | +201570 |
| 8modern | 2073 | Hanna, Nolan (1699) | Lost 0-2 | -161554 |
| 9modern | 2144 | Pareja, Daniel (1593) | Won 2-1 | +191573 |
| 10modern | 2097 | Yuan, Jielin (1581) | Lost 0-2 | -181555 |
| 11modern | 2157 | Connelly, Andrew (1596) | Lost 0-2 | -171538 |
| 12modern | 2168 | Burden, Michael (1549) | Lost 1-2 | -181520 |
| top | average opponent: 1645record: 6-5-1 | new rating: 1520 | ||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 257 | Szatkowski, David (1366) | Won 2-0 | +161516 |
| 2legacy | 342 | Thomas, Drayven (1484) | Lost 1-2 | -191497 |
| 3legacy | 581 | Chembars, Richard (1501) | Won 2-1 | +181515 |
| 4legacy | 269 | Ross, Kyle (1537) | Lost 1-2 | -181497 |
| 5legacy | 703 | Heinson, Grant (1495) | Lost 0-2 | -181479 |
| top | average opponent: 1477record: 2-3 | new rating: 1479 | ||