Sparks, Dorian
Current rating: 1371
| Grand Prix Calgary 2019 (modern) | starting rating: 1348 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 149 | Tremblay, Adam (1488) | Won 2-0 | +211369 |
| 2modern | 215 | Sinnicks, Allan (1515) | Lost 1-2 | -151354 |
| 3modern | 325 | Meggs, Denver (1500) | Won 2-1 | +201374 |
| 4modern | 124 | Brager, Brandon (1518) | Won 2-0 | +211395 |
| 5modern | 126 | MacKenzie, Lester (1594) | Lost 0-2 | -151380 |
| 6modern | 199 | Fur, Attila (1647) | Lost 1-2 | -131367 |
| 7modern | 227 | Brown, Shayne (1480) | Won 2-0 | +201387 |
| 8modern | 163 | MacPherson, Mitchell (1506) | Lost 1-2 | -161371 |
| top | average opponent: 1531record: 4-4 | new rating: 1371 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1409 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 608 | Hennessey, Connor (1500) | Won 2-1 | +201429 |
| 2modern | 189 | Tople, Jonathan (1465) | Lost 0-2 | -171412 |
| 3modern | 906 | Johnson, Nathan (1486) | Lost 1-2 | -171395 |
| 4modern | 904 | Drost, Joshua (1480) | Lost 1-2 | -171378 |
| 5modern | 1005 | Porter, Patrick (1461) | Lost 0-2 | -161362 |
| 6modern | 1021 | Vargo, Joe (1477) | Lost 0-2 | -161346 |
| 7modern | 927 | Ward, John (1442) | Won 2-0 | +201366 |
| 8modern | 774 | Ciarelli, Melissa (1398) | Lost 0-2 | -181348 |
| top | average opponent: 1464record: 2-6 | new rating: 1348 | ||
| Grand Prix Vancouver 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 221 | Pisio, Shawn (1464) | Lost 0-2 | -191481 |
| 2modern | 340 | Nicolas, Ryan (1482) | Draw 1-1 | 01481 |
| 3modern | 441 | Nash, Spencer (1465) | Lost 0-2 | -181463 |
| 4modern | 491 | Corona, Juan (1464) | Won 2-1 | +181481 |
| 5modern | 405 | Whatley, Callum (1468) | Lost 0-2 | -181463 |
| 6modern | 383 | Joyall, Vincent (1462) | Lost 0-2 | -181445 |
| 7modern | 315 | Mak, Greg (1447) | Lost 0-2 | -181427 |
| 8modern | 257 | Goodswimmer-Ferguson, Seth (1446) | Lost 0-2 | -181409 |
| top | average opponent: 1462record: 1-6-1 | new rating: 1409 | ||