Parker, Zachary
Current rating: 1610
Record: 15-11 (GP) / 15-16-1 (professional)
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1593 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 782 | Moisant, Alex (1577) | Won 2-1 | +181611 |
| 2sealed | 765 | Labruna, Leonardo (1682) | Won 2-0 | +191630 |
| 3sealed | 542 | Mills, Wesley (1463) | Won 2-1 | +151645 |
| 4sealed | 580 | Turner, Cash (2008) | Lost 1-2 | -111634 |
| 5sealed | 823 | Fusak, Steven (1550) | Won 2-0 | +161650 |
| 6sealed | 697 | Smith, Zane (1619) | Lost 0-2 | -191631 |
| 7sealed | 826 | Garrison, William (1486) | Lost 1-2 | -201611 |
| 8sealed | 914 | Claus, Tahsis (1546) | Won 2-0 | +171628 |
| 9sealed | 779 | Truong, Andy (1661) | Lost 1-2 | -181610 |
| top | average opponent: 1621record: 5-4 | new rating: 1610 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1613 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 301 | Bell, Preston (1502) | Lost 0-2 | -201593 |
| top | record: 0-1 | new rating: 1593 | ||
| Grand Prix Atlanta 2014 (JOU limited) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 495 | Townsend, Jacob (1500) | Won 2-0 | +171574 |
| 2sealed | 222 | Kolodzey, William (1536) | Won 2-1 | +171591 |
| 3sealed | 383 | Mixson, Jared (1540) | Won 2-1 | +171608 |
| 4sealed | 272 | Levy, Raphael (1984) | Lost 1-2 | -111597 |
| 5sealed | 431 | Krangel, Eric (1533) | Won 2-1 | +171614 |
| 6sealed | 363 | Labny, Ross (1519) | Won 2-0 | +161630 |
| 7sealed | 310 | Gable, Levi (1673) | Lost 1-2 | -171613 |
| 8sealed | 400 | Hubka, Chris (1593) | Lost 0-2 | -191594 |
| 9sealed | 385 | Kingsley, James W (1647) | Won 2-1 | +191613 |
| top | average opponent: 1614record: 6-3 | new rating: 1613 | ||
| Pro Tour Kobe 2004 (Mirrodin block) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 51 | Samsonoff, Stephane (1500) | Lost 1-2 | -191573 |
| 2block | 77 | Jonsson, Anton (1978) | Lost 0-2 | -111562 |
| 3block | 104 | Gendelman, Adam (1393) | Won 2-1 | +151577 |
| 4block | 83 | Ekimov, Vladimir (1489) | Won 2-0 | +161593 |
| 5block | 80 | Sullivan, Patrick (1540) | Lost 1-2 | -191574 |
| 6block | 74 | Gossett, Stephen (1530) | Won 2-1 | +171591 |
| 7block | 65 | Braun, Oliver (1635) | Lost 0-2 | -171574 |
| 8block | 69 | Idzikovsky, Eugene (1624) | Lost 1-2 | -171557 |
| top | average opponent: 1586record: 3-5 | new rating: 1557 | ||
| Pro Tour Yokohama 2003 (LGN draft) | starting rating: 1598 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 32 | Werner, Alex (1586) | Won 2-0 | +181616 |
| 2draft | 36 | Meulders, Fried (1618) | Draw 1-1 | 01616 |
| 3draft | 98 | Finkel, Jon (1952) | Lost 0-2 | -121604 |
| 4draft | 111 | Shiozu, Ryouma (1906) | Won 2-1 | +241628 |
| 5draft | 38 | Wessels, Thijs (1465) | Lost 1-2 | -211607 |
| 6draft | 3 | Benafel, Chris (1811) | Lost 0-2 | -151592 |
| top | average opponent: 1723record: 2-3-1 | new rating: 1592 | ||
| Pro Tour Chicago 2003 (ONS rochester) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 143 | Lopez Campos, Emilio (1521) | Won 2-0 | +181514 |
| 2rochester | 5 | Cowan, John (1568) | Lost 1-2 | -171497 |
| 3rochester | 95 | Lee, Gary (1569) | Won 2-0 | +191516 |
| 4rochester | 65 | Allbright, Bob (1411) | Won 2-1 | +171533 |
| 5rochester | 24 | Breider, Aaron (1596) | Won 2-1 | +191552 |
| 6rochester | 6 | Ranks, Matthew (1887) | Lost 1-2 | -121540 |
| 7rochester | 18 | Levy, Raphael (1929) | ID | 01540 |
| 9rochester | 17 | Bastos, Frederico (1675) | Won 2-0 | +201560 |
| 10rochester | 18 | Malka, Sol (1915) | Lost 1-2 | -121548 |
| 11rochester | 56 | Zaun, Michael (1606) | Lost 0-2 | -171531 |
| 12rochester | 37 | Levy, Raphael (1923) | Won 2-1 | +251556 |
| 13rochester | 10 | Bastos, Frederico (1672) | Won 2-1 | +201576 |
| 14rochester | 48 | Gomersall, Sam (1814) | Won 2-0 | +221598 |
| top | average opponent: 1699record: 8-4-1 | new rating: 1598 | ||
| Pro Tour Houston 2002 (extended) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 93 | Stead, Bill (1875) | Lost 1-2 | -121506 |
| 2extended | 115 | Gattolin, Stefano (1450) | Won 2-0 | +171523 |
| 3extended | 100 | Uzcategui, Leonardo (1647) | Won 2-0 | +201543 |
| 4extended | 52 | Luini, Paolo (1500) | Lost 1-2 | -191524 |
| 5extended | 114 | Levy, Raphael (1945) | Lost 1-2 | -101514 |
| 6extended | 114 | Parnell, Taylor (1524) | Lost 0-2 | -181496 |
| top | average opponent: 1657record: 2-4 | new rating: 1496 | ||
| Grand Prix Atlanta 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 4 | Fleisher, Stuart (1500) | Won 2-0 | +181518 |
| 2sealed | 2 | Schroeder, Sterling (1553) | Lost 1-2 | -171501 |
| 3sealed | 100 | Obrikat, Chase (1501) | Won 2-0 | +181519 |
| 4sealed | 76 | Sherman, Kevin (1524) | Won 2-1 | +181537 |
| 5sealed | 38 | Grimmer, Brian (1520) | Won 2-0 | +171554 |
| 6sealed | 22 | Greer, Joseph (1504) | Lost 1-2 | -181536 |
| 7sealed | 65 | Flete, George (1542) | Lost 0-2 | -181518 |
| top | average opponent: 1520record: 4-3 | new rating: 1518 | ||