Spak, Douglas B
Current rating: 1468
Record: 6-8
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 170 | Draper, Barton (1423) | Won 2-1 | +171500 |
| 2sealed | 117 | Morrow, Andrew (1454) | Lost 0-2 | -191481 |
| 3sealed | 566 | Kates, Sean (1448) | Won 2-1 | +171498 |
| 4sealed | 248 | Corrigan, Griffin (1630) | Lost 0-2 | -151483 |
| 5sealed | 424 | McGlothlin, Kenneth A (1540) | Won 2-0 | +191502 |
| 6sealed | 282 | Sutliff, Casey (1573) | Lost 1-2 | -171485 |
| 7sealed | 337 | Felicetti, Ted (1549) | Lost 0-2 | -171468 |
| average opponent: 1517record: 3-4 | new rating: 1468 | |||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 276 | Stell, Ethan (1557) | Won 2-0 | +191519 |
| 2standard | 111 | santiago, orlando U (1523) | Won 2-0 | +181537 |
| 3standard | 82 | Pascal, Brandon (1490) | Lost 0-2 | -191518 |
| 4standard | 394 | Riecks, Matthew (1675) | Lost 1-2 | -151503 |
| 5standard | 455 | Finocchiaro, Harry (1478) | Lost 0-2 | -181485 |
| 6standard | 549 | Meise, Alexander (1483) | Won 2-0 | +181503 |
| 7standard | 407 | Pagliocco, Mariah (1401) | Lost 1-2 | -201483 |
| average opponent: 1515record: 3-4 | new rating: 1483 | |||