Szelzki, Jeffrey
Current rating: 1680
Record: 43-36-1 (GP) / 4-4 (professional)
Grand Prix Boston 2005Grand Prix Toronto 2006Grand Prix Montreal 2007Grand Prix Philadelphia 2008Pro Tour Berlin 2008Grand Prix Boston 2009Grand Prix Toronto 2010Grand Prix Providence 2011Grand Prix Montreal 2011Grand Prix Boston-Worcester 2012Grand Prix Toronto 2012Grand Prix Montreal 2014Grand Prix Montreal 2019
| Grand Prix Montreal 2019 (ELD limited) | starting rating: 1635 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 130 | Allan, Dane (1522) | Won 2-0 | +161651 |
| 2sealed | 228 | McGee Herritt, Matthew (1512) | Won 2-0 | +161667 |
| 3sealed | 15 | Bedard, Mathieu (1516) | Won 2-0 | +151682 |
| 4sealed | 71 | Newcomb, Dorian (1703) | Won 2-0 | +191701 |
| 5sealed | 16 | Gauthier, Martin-Eric (1962) | Won 2-0 | +221723 |
| 6sealed | 6 | Muller, Chris (1697) | Lost 1-2 | -181705 |
| 7sealed | 31 | Liu, Jason (1656) | Lost 0-2 | -191686 |
| 8sealed | 75 | Mykhno, Mykhailo (1486) | Won 2-0 | +141700 |
| 9sealed | 49 | Hootsmans, Jan (1586) | Lost 1-2 | -201680 |
| top | average opponent: 1627record: 6-3 | new rating: 1680 | ||
| Grand Prix Montreal 2014 (BNG limited) | starting rating: 1656 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 80 | Kotok, Malcolm (1517) | Lost 1-2 | -211635 |
| top | record: 0-1 | new rating: 1635 | ||
| Grand Prix Toronto 2012 (modern) | starting rating: 1705 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 187 | Seifert, Chris (1483) | Lost 1-2 | -221683 |
| 3modern | 329 | Leibrock, Erich (1523) | Won 2-1 | +151698 |
| 4modern | 276 | Breau, Josh (1547) | Lost 1-2 | -211677 |
| 5modern | 248 | Wong, Alex (1509) | Lost 1-2 | -211656 |
| top | average opponent: 1515record: 1-3 | new rating: 1656 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 253 | loren, shawn p (1500) | Won 2-1 | +171572 |
| 2sealed | 159 | Raymond R., (1518) | Won 2-1 | +171589 |
| 3sealed | 218 | Parke, Jamie (1662) | Lost 1-2 | -171572 |
| 4sealed | 507 | Bonneville, Martin (1759) | Won 2-0 | +221594 |
| 5sealed | 178 | Craven, Mackey (1601) | Won 2-1 | +181612 |
| 6sealed | 264 | Dubois, Joe (1570) | Won 2-1 | +171629 |
| 7sealed | 106 | Kazhdan, Ben (1471) | Won 2-0 | +151644 |
| 8sealed | 36 | Maurmeier, Ralph (1520) | Won 2-0 | +161660 |
| 9sealed | 52 | DiDonato, Joseph H (1568) | Won 2-1 | +161676 |
| 10sealed | 19 | Headley, David (1634) | Won 2-0 | +181694 |
| 11draft | 4 | Murray, Ben D (1661) | Won 2-1 | +171711 |
| 12draft | 31 | Nunes, James (1735) | Won 2-1 | +181729 |
| 13draft | 4 | Farr, Errol (1695) | Won 2-1 | +181747 |
| 14draft | 64 | Tse, Felix (1785) | Lost 1-2 | -181729 |
| 15draft | 29 | Holzinger, Thomas (2076) | Lost 1-2 | -111718 |
| 16draft | 5 | DeMars, Brian (2005) | Lost 0-2 | -131705 |
| top | average opponent: 1672record: 12-4 | new rating: 1705 | ||
| Grand Prix Montreal 2011 (M12 limited) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 367 | Berse, Sam (1473) | Won 2-0 | +161592 |
| 5sealed | 355 | Bouthot, Francois (1573) | Lost 1-2 | -191573 |
| 6sealed | 371 | Root, Wesley (1556) | Lost 0-2 | -181555 |
| top | average opponent: 1534record: 1-2 | new rating: 1555 | ||
| Grand Prix Providence 2011 (legacy) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 508 | Nordlund, Zachary S (1571) | Lost 0-2 | -181579 |
| 3legacy | 580 | Nothnagel, Glen (1535) | Won 2-0 | +171596 |
| 4legacy | 510 | Zhu, Yang-Yang (1613) | Lost 0-2 | -181578 |
| 5legacy | 600 | Pivovar, Ross (1500) | Won 2-0 | +171595 |
| 6legacy | 499 | Stack, Alexander R (1517) | Lost 1-2 | -191576 |
| top | average opponent: 1547record: 2-3 | new rating: 1576 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1585 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 402 | Parker, Brock (1915) | Won 2-1 | +241609 |
| 5sealed | 353 | Duncan, Kyle A (1523) | Won 2-1 | +171626 |
| 6sealed | 333 | Kuo, Tzu-Ching (1998) | Won 2-1 | +241650 |
| 7sealed | 333 | Chen, Danny (1613) | Won 2-0 | +171667 |
| 8sealed | 325 | St-amour, Joel (1585) | Won 2-1 | +171684 |
| 9sealed | 326 | Rowe, Jonathan (1663) | Lost 0-2 | -181666 |
| 10sealed | 327 | Nass, Matthew (1860) | Lost 0-0 | -151651 |
| 11draft | 26 | Froehlich, Eric (1912) | Lost 1-2 | -131638 |
| 12draft | 32 | Henning, Nick (1661) | Won 2-0 | +181656 |
| 13draft | 30 | Rowe, Jonathan (1666) | Lost 1-2 | -181638 |
| 14draft | 8 | Watanabe, Yuuya (2106) | Lost 0-2 | -101628 |
| 15draft | 24 | Vergel, Vincent Paul R (1553) | Lost 1-2 | -191609 |
| 16draft | 15 | Woods, Conley (1981) | Lost 0-2 | -121597 |
| top | average opponent: 1772record: 6-7 | new rating: 1597 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 471 | Palmerio, Anthony (1536) | Won 2-0 | +171561 |
| 4sealed | 426 | Harrison, Travis (1666) | Won 2-1 | +201581 |
| 5sealed | 401 | Bouchard, Maximilien (1522) | Won 2-1 | +171598 |
| 6sealed | 413 | Vigderman, Constantine (1732) | Won 2-1 | +211619 |
| 7sealed | 406 | Wantz, Brad (1593) | Won 2-1 | +171636 |
| 8sealed | 404 | Tenney, Thomas A (1615) | Lost 0-2 | -181618 |
| 9sealed | 412 | Bard, Nicholas (1600) | Won 2-1 | +171635 |
| 10draft | 23 | Muraca, Nick (1697) | Lost 1-2 | -161619 |
| 11draft | 30 | Nunes, James (1584) | Won 2-0 | +171636 |
| 12draft | 14 | Skarren, Frank (1625) | Lost 0-2 | -181618 |
| 13draft | 80 | Li, Phillip (1609) | Lost 0-2 | -181600 |
| 14draft | 13 | Siow, Lucas (1811) | Lost 1-2 | -151585 |
| top | average opponent: 1632record: 7-5 | new rating: 1585 | ||
| Pro Tour Berlin 2008 (extended) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 223 | Birklid, Steven (1638) | Won 2-0 | +201538 |
| 2extended | 38 | Costa, Frederico (1701) | Lost 1-2 | -151523 |
| 3extended | 141 | Lee, Ji-Hoon (1741) | Won 2-0 | +221545 |
| 4extended | 30 | Turtenwald, Owen (1877) | Lost 1-2 | -121533 |
| 5extended | 120 | Haroun, Seraj (1550) | Won 2-0 | +181551 |
| 6extended | 102 | Gurney, Michael (1839) | Lost 1-2 | -121539 |
| 7extended | 90 | Shimizu, Naoki (1832) | Lost 0-2 | -131526 |
| 8extended | 140 | Buruaga Carranza, Ulises (1511) | Won 2-1 | +181544 |
| top | average opponent: 1711record: 4-4 | new rating: 1544 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 3extended | 2 | Maples, Zechariah (1460) | Lost 0-2 | -191536 |
| 4extended | 178 | Wyant, Aaron (1572) | Lost 0-2 | -181518 |
| top | average opponent: 1516record: 0-2 | new rating: 1518 | ||
| Grand Prix Montreal 2007 (Time Spiral block) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 18 | Mercier, Frederic (1501) | Lost 1-2 | -171467 |
| 3block | 165 | Li, Terrence (1503) | Won 2-0 | +181485 |
| 4block | 191 | Bolton, Russell (1518) | Won 2-0 | +191504 |
| 5block | 115 | Lewis, Aaron (1525) | Won 2-0 | +181522 |
| 6block | 54 | Daoust, Guillaume (1791) | Won 2-0 | +231545 |
| 7block | 32 | Rosman-Simionescu, Tobias (1665) | Won 2-1 | +201565 |
| 8block | 28 | Knuepp, Marc-Alexandre (1580) | Draw 0-0 | 01565 |
| 9block | 20 | Cheon, Paul (2036) | Lost 0-0 | -101555 |
| top | average opponent: 1640record: 5-2-1 | new rating: 1555 | ||
| Grand Prix Toronto 2006 (DIS limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 44 | Henkel, Curtis A (1500) | Lost 1-2 | -171447 |
| 2sealed | 187 | Hon, Andy (1483) | Won 2-1 | +181465 |
| 3sealed | 148 | Valkanas, Andrew (1425) | Won 2-0 | +181483 |
| 4sealed | 73 | Rodamilans, Enric (1494) | Won 2-0 | +181501 |
| 5sealed | 53 | Anderson, Phil (1578) | Lost 0-2 | -171484 |
| top | average opponent: 1496record: 3-2 | new rating: 1484 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 43 | Lau, Victor (1500) | Lost 1-2 | -181482 |
| 2extended | 214 | Barrios, Kent (1482) | Lost 1-2 | -181464 |
| top | average opponent: 1491record: 0-2 | new rating: 1464 | ||