Roberson, Michael
Current rating: 1429
Record: 8-14
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 682 | Konishi, Keahi (1802) | Lost 0-2 | -121458 |
| 4modern | 2155 | Bishop, Alyssa (1397) | Lost 0-2 | -191439 |
| 5modern | 1028 | Kassari, John (1875) | Lost 0-2 | -101429 |
| top | average opponent: 1691record: 0-3 | new rating: 1429 | ||
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 2131 | Lynch, Eric (1424) | Lost 1-2 | -181446 |
| 4legacy | 732 | Comart, Casey (1472) | Won 2-0 | +181464 |
| 5legacy | 419 | Barry, Thomas (1636) | Lost 1-2 | -151449 |
| 6legacy | 435 | Chembars, Richard (1574) | Won 2-1 | +201469 |
| 7legacy | 287 | Petersen, Andreas (1577) | Won 2-0 | +201489 |
| 8legacy | 236 | Calvin, Nathan (1683) | Won 2-1 | +221511 |
| 9legacy | 145 | Kanner, Zack (1804) | Lost 0-2 | -131498 |
| 10legacy | 212 | Lima Paulino, Davi (1538) | Lost 0-2 | -171481 |
| 11legacy | 309 | Taflin, Nicholas (1525) | Won 2-1 | +191500 |
| 12legacy | 197 | Bailey, Samson (1440) | Won 2-0 | +171517 |
| 13legacy | 187 | Olson, Kyle (1769) | Lost 1-2 | -141503 |
| 14legacy | 207 | Ahrens, Jonathan (1589) | Lost 0-2 | -161487 |
| 15legacy | 191 | Cong, Yale (1589) | Lost 1-2 | -171470 |
| top | average opponent: 1586record: 6-7 | new rating: 1470 | ||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 50 | Magdaleno, Mike (1518) | Lost 0-2 | -181482 |
| 2legacy | 558 | Varner, Sam (1446) | Lost 0-2 | -181464 |
| 3legacy | 819 | Warford, Christopher Chad (1380) | Lost 0-2 | -201444 |
| 4legacy | 892 | Franks, Kryslin (1448) | Won 2-0 | +181462 |
| 5legacy | 818 | Campbell, Zachary (1444) | Won 2-0 | +181480 |
| 6legacy | 577 | Houghton, David (1614) | Lost 1-2 | -161464 |
| top | average opponent: 1475record: 2-4 | new rating: 1464 | ||