Sparkman, Sean
Current rating: 1521
Record: 5-4
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 42 | Wills, Garrett S (1500) | Won 2-1 | +181518 |
| 2modern | 276 | Mayo, Daniel (1564) | Lost 0-0 | -171501 |
| 3modern | 521 | Cabana, Tyler (1499) | Lost 0-2 | -181483 |
| 4modern | 599 | Hannah, Michael (1463) | Won 2-0 | +171500 |
| 5modern | 399 | Lis, Dan (1536) | Lost 0-2 | -171483 |
| 6modern | 536 | Medlen, Kayla R (1480) | Lost 1-2 | -181465 |
| 7modern | 441 | Greeno, Kody (1511) | Won 0-0 | +191484 |
| 8modern | 343 | Woo, Kenneth (1483) | Won 2-0 | +181502 |
| 9modern | 265 | Heminway, Curtis (1543) | Won 2-0 | +191521 |
| average opponent: 1509record: 5-4 | new rating: 1521 | |||