Prathumratana, Mike
Current rating: 1552
Record: 8-6
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 979 | O'Neil, Dustin (1500) | Lost 0-2 | -181450 |
| 2sealed | 1206 | Wingo, Donald (1449) | Won 2-0 | +181468 |
| 3sealed | 934 | Chacon, Jorge (1499) | Lost 0-2 | -171451 |
| 4sealed | 1125 | Broadway, Trevor (1480) | Won 2-0 | +181469 |
| 5sealed | 1027 | Wright, Michael S (1489) | Won 2-1 | +191488 |
| 6sealed | 868 | Jackett, John R (1475) | Won 2-1 | +171505 |
| 7sealed | 795 | LaRue, Jarod (1569) | Won 2-0 | +201525 |
| 8sealed | 373 | Perkins, Tony (1555) | Won 2-1 | +181543 |
| 9sealed | 366 | Smith, Ashford (1672) | Won 2-1 | +211564 |
| 10sealed | 94 | Cox, Patrick (1941) | Lost 1-2 | -121552 |
| average opponent: 1563record: 7-3 | new rating: 1552 | |||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 697 | McDonough, Anthony (1509) | Won 2-0 | +181518 |
| 2standard | 838 | Cain, Lee E (1518) | Lost 0-2 | -181500 |
| 3standard | 932 | Cohen, Matthew (1501) | Lost 0-2 | -181482 |
| 4standard | 910 | Becker, Jonathan (1678) | Lost 1-2 | -141468 |
| average opponent: 1551record: 1-3 | new rating: 1468 | |||