Sigwalt, Donald L
Current rating: 1522
Record: 4-3
| Grand Prix Charlotte 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1422 | Hernandez, Aaron (1500) | Won 2-1 | +181518 |
| 2modern | 1276 | Ashe, Michael S (1518) | Won 2-0 | +181536 |
| 3modern | 1238 | Raines, Andrew H (1536) | Won 2-1 | +181554 |
| 4modern | 1298 | Bolding, Jon (1812) | Lost 0-2 | -131541 |
| 5modern | 1189 | Cheeseman, Adam (1490) | Lost 0-2 | -191522 |
| 6modern | 1249 | Williams, Jared D (1488) | Won 2-1 | +171539 |
| 7modern | 1093 | Sirkis, Jeff (1613) | Lost 1-2 | -171522 |
| average opponent: 1565record: 4-3 | new rating: 1522 | |||