Dulak, David
Current rating: 1734 (#4595)
Record: 41-28-1
| Grand Prix Milwaukee 2016 (KLD limited) | starting rating: 1742 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 395 | Heim, Korben (1500) | Won 2-0 | +141756 |
| 2sealed | 146 | Curry, Dylan (1518) | Won 2-0 | +141770 |
| 3sealed | 4 | Barnett, Alexander (1524) | Lost 1-2 | -231747 |
| 4sealed | 365 | Grissom, Koelten (1679) | Won 2-1 | +171764 |
| 5sealed | 255 | Sturm, Molly (1508) | Won 2-0 | +141778 |
| 6sealed | 64 | Tharmaratnam, Samuel (1947) | Lost 0-2 | -151763 |
| 7sealed | 245 | Boris, Harry (1537) | Won 2-1 | +141777 |
| 8sealed | 129 | Lequia, Steven (1641) | Lost 1-2 | -211756 |
| 9sealed | 210 | Anderson, Sterling (1547) | Lost 1-2 | -221734 |
| top | average opponent: 1600record: 5-4 | new rating: 1734 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1652 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 29 | Bursavich, Austin (2000) | Won 2-0 | +241676 |
| 4sealed | 5 | Benafel, Chris (1753) | Lost 1-2 | -161660 |
| 5sealed | 118 | Morris, Christopher (1543) | Won 2-0 | +151675 |
| 6sealed | 80 | Harvey, Michael (1560) | Won 2-0 | +161691 |
| 7sealed | 54 | Vasquez, Mikonos (1569) | Won 2-0 | +161707 |
| 8sealed | 32 | Burns, Jonathan (1646) | Won 2-1 | +171724 |
| 9sealed | 9 | Yu, Ben (1898) | Won 2-1 | +211745 |
| 10draft | 146 | Weier, Allen (1755) | Won 2-0 | +181763 |
| 11draft | 119 | Romero, Henry (1989) | Won 2-1 | +221785 |
| 12draft | 4 | Daggett, Anthony (1765) | Lost 0-2 | -181767 |
| 13draft | 64 | Richards, Brian (1629) | Lost 0-2 | -211746 |
| 14draft | 146 | Zurawski, Alex (1584) | Won 2-0 | +161762 |
| 15draft | 21 | Iverson, William (1696) | Lost 0-2 | -201742 |
| top | average opponent: 1722record: 9-4 | new rating: 1742 | ||
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1638 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 253 | Chen, Cliff (1538) | Won 2-0 | +161654 |
| 4modern | 142 | Wong, Travis (1556) | Lost 0-2 | -201634 |
| 5modern | 395 | Plocher, Justin (1652) | Won 2-1 | +191653 |
| 6modern | 177 | Chew, Kelvin (1994) | Lost 1-2 | -121641 |
| 7modern | 344 | Brackett, Brian (1501) | Won 2-0 | +151656 |
| 8modern | 248 | Poster, Scott (1539) | Lost 1-2 | -201636 |
| 9modern | 277 | Larson, Erik (1523) | Won 2-1 | +161652 |
| top | average opponent: 1615record: 4-3 | new rating: 1652 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 161 | Christopher, Grant (1524) | Won 2-0 | +181558 |
| 4sealed | 128 | Stanek, Brian (1500) | Lost 1-2 | -191539 |
| 5sealed | 156 | Spano, Greggory (1512) | Won 2-1 | +181557 |
| 6sealed | 125 | Bailey, Joni (1467) | Lost 0-2 | -201537 |
| 7sealed | 167 | Michael, Matthew (1532) | Won 2-1 | +181555 |
| 8sealed | 77 | Gumbinger, Mike (1525) | Won 2-1 | +171572 |
| 9sealed | 88 | Heywood, Julius (1490) | Won 2-0 | +171589 |
| 10sealed | 113 | Corvese, Harry (1913) | Won 2-1 | +241613 |
| 11sealed | 66 | Castor, Kenny (1912) | Lost 0-2 | -131600 |
| 12draft | 30 | Norton, Lee B (1594) | Lost 1-2 | -181582 |
| 13draft | 75 | Martin, Elias A (1619) | Won 2-0 | +181600 |
| 14draft | 16 | Copersito, Joey (1586) | Won 2-1 | +181618 |
| 15draft | 8 | Wieck, Nathaniel (1616) | Won 2-1 | +181636 |
| 16draft | 35 | Painter, Jameson (1650) | Lost 0-2 | -181618 |
| 17draft | 55 | Mabie, Bryan (1712) | Won 2-0 | +201638 |
| top | average opponent: 1610record: 10-5 | new rating: 1638 | ||
| Grand Prix Indianapolis 2013 (RTR limited) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 76 | Schauf, Scott (1597) | Lost 1-2 | -171540 |
| 4sealed | 239 | Looman, Dane (1387) | Won 2-1 | +151555 |
| 5sealed | 181 | Wauer, Carl (1670) | Won 2-1 | +201575 |
| 6sealed | 90 | Cieszynski, Eric (1560) | Lost 1-2 | -181557 |
| 7sealed | 149 | Roop, Taylor (1493) | Won 2-1 | +171574 |
| 8sealed | 123 | Costa, Matthew (1761) | Lost 0-2 | -151559 |
| 9sealed | 138 | Rice, Kevin (1527) | Lost 1-2 | -191540 |
| top | average opponent: 1571record: 3-4 | new rating: 1540 | ||
| Grand Prix Chicago 2012 (modern) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 4modern | 38 | Scott-Vargas, Luis (1899) | Won 2-1 | +251523 |
| 5modern | 47 | Williams, Alex (1532) | Won 2-1 | +181541 |
| 6modern | 19 | Oberholtzer, Matt P (1532) | Lost 1-2 | -181523 |
| 7modern | 29 | Vaca, Rob (1544) | Won 2-1 | +181541 |
| 8modern | 12 | Dixon, Kelsey (1676) | Won 2-0 | +201561 |
| 9modern | 29 | Gleicher, David (1835) | Lost 1-2 | -131548 |
| 10modern | 66 | Cuvelier, John (1774) | Lost 1-2 | -141534 |
| 11modern | 53 | Pathirana, Madhushan (1553) | Lost 1-2 | -171517 |
| 12modern | 70 | Berg, Jimmy (1469) | Won 2-1 | +171534 |
| 13modern | 62 | Nass, Matthew (1693) | Lost 0-2 | -151519 |
| 14modern | 61 | Wagener, Andrew (1593) | Won 2-0 | +191538 |
| 15modern | 49 | Hall, Mathew (1585) | Won 2-1 | +191557 |
| top | average opponent: 1641record: 7-5 | new rating: 1557 | ||
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 122 | Doroff, Benjamin D (1500) | Lost 1-2 | -181482 |
| 2standard | 295 | Schloegel, David (1482) | Draw 1-1 | 01482 |
| 3standard | 383 | Quintana, Roland (1465) | Won 2-0 | +181500 |
| 4standard | 339 | Green, Robert (1408) | Won 2-0 | +161516 |
| 5standard | 244 | Muller, John (1537) | Lost 0-2 | -181498 |
| 6standard | 316 | Baker, Paul (1456) | Won 2-0 | +181516 |
| 7standard | 227 | Becker, Nolan (1518) | Lost 0-2 | -181498 |
| top | average opponent: 1481record: 3-3-1 | new rating: 1498 | ||