Mcdowell, Derek
Current rating: 1527
Record: 7-6
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1121 | Black, Samir (1500) | Won 2-0 | +181540 |
| 2sealed | 893 | Desilva, Kelvin (1518) | Won 2-0 | +171557 |
| 3sealed | 720 | Lard, Casey (1537) | Won 2-1 | +181575 |
| 4sealed | 676 | Flora, Dustin (1637) | Lost 0-2 | -171558 |
| 5sealed | 823 | Ajemian, Christopher (1619) | Lost 0-2 | -171541 |
| 6sealed | 901 | Dowse, Bryan (1733) | Lost 1-2 | -141527 |
| average opponent: 1591record: 3-3 | new rating: 1527 | |||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 8 | Wong, Ben (1497) | Won 2-0 | +181518 |
| 2standard | 210 | Stockdale, Nicholas (1606) | Won 2-0 | +201538 |
| 3standard | 82 | Grube, Peter L (1603) | Lost 0-2 | -171521 |
| 4standard | 375 | Passaro, Johnathan E (1550) | Won 2-0 | +181539 |
| 5standard | 345 | Schmaltz, Matt (1603) | Lost 0-2 | -171522 |
| 6standard | 438 | Stenborg, Michael (1517) | Won 2-0 | +181540 |
| 7standard | 187 | Campbell, Blaine (1530) | Lost 0-2 | -181522 |
| average opponent: 1558record: 4-3 | new rating: 1522 | |||