Headley, Michael
Current rating: 1458
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 118 | McCaffrey, Phil (1500) | Won 2-0 | +191492 |
| 2sealed | 181 | Dahle, Travis (1538) | Draw 1-1 | +11493 |
| 3sealed | 194 | Abernethy, Andrew (1535) | Lost 1-2 | -171476 |
| 4sealed | 271 | Morin, Michel (1506) | Lost 0-2 | -181458 |
| top | average opponent: 1520record: 1-2-1 | new rating: 1458 | ||
| Grand Prix Omaha 2015 (modern) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 369 | Holm, Patrick (1573) | Lost 0-2 | -161492 |
| 2modern | 462 | Starr, Jered (1553) | Won 2-0 | +191511 |
| 3modern | 254 | Vierling, Karen (1500) | Lost 1-2 | -181493 |
| 4modern | 418 | Hobbs, Jimmy (1431) | Lost 0-2 | -201473 |
| top | average opponent: 1514record: 1-3 | new rating: 1473 | ||
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 321 | Buehler, Alexander (1496) | Won 2-0 | +181518 |
| 2modern | 151 | Mangner, Sean (1833) | Won 2-0 | +231541 |
| 3modern | 215 | Stapleton, Joshua (1622) | Won 2-1 | +201561 |
| 4modern | 147 | Swailes, Michael (1663) | Lost 0-2 | -161545 |
| 5modern | 309 | Nett, Brad (1534) | Lost 1-2 | -181527 |
| 6modern | 355 | Oien, Christopher (1518) | Lost 1-2 | -191508 |
| top | average opponent: 1611record: 3-3 | new rating: 1508 | ||