Zezula, John
Current rating: 1686
Record: 50-39-1
| Grand Prix Denver 2019 (M20 standard) | starting rating: 1669 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 170 | Cash, Jeremy (1708) | Won 2-1 | +191688 |
| 2standard | 141 | Fuller, Shayne (1520) | Won 2-1 | +151703 |
| 3standard | 33 | Zulauf, Joshua (1505) | Won 2-0 | +141717 |
| 4standard | 66 | Behrens, Joseph (1632) | Lost 1-2 | -191698 |
| 5standard | 119 | Raval, Mahendra (1758) | Lost 0-2 | -171681 |
| 6standard | 182 | Kingsley, Kevin (1824) | Won 2-0 | +201701 |
| 7standard | 81 | Nelson, Brandon (1825) | Lost 0-2 | -151686 |
| top | average opponent: 1682record: 4-3 | new rating: 1686 | ||
| Grand Prix Denver 2017 (HOU standard) | starting rating: 1585 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 124 | Ocampo, Neil (1613) | Won 2-0 | +181603 |
| 3standard | 76 | Ferguson, Josh (1491) | Won 2-0 | +161619 |
| 4standard | 98 | Kahovec, Nate (1693) | Won 2-0 | +191638 |
| 5standard | 66 | Wolloch, Sam (1656) | Won 2-0 | +191657 |
| 6standard | 11 | Lachney, Donovan (1586) | Lost 1-2 | -201637 |
| 7standard | 20 | Holiday, Nathan (2009) | Lost 1-2 | -111626 |
| 8standard | 97 | Porter, Michael (1570) | Lost 1-2 | -191607 |
| 9standard | 223 | Zhong, Arthur (1544) | Won 2-0 | +171624 |
| 10standard | 98 | Griffin, Thomas (1686) | Won 2-1 | +191643 |
| 11standard | 87 | Linn, Ricky (1774) | Lost 0-2 | -161627 |
| 12standard | 138 | Lipp, Scott (2100) | Lost 1-2 | -101617 |
| 13standard | 143 | Voss, Anthony (1553) | Won 2-0 | +171634 |
| 14standard | 119 | Crowfoot, Corey (1610) | Won 2-1 | +181652 |
| 15standard | 80 | Clark, Tyler (1615) | Won 2-1 | +171669 |
| top | average opponent: 1679record: 9-5 | new rating: 1669 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 552 | Perera, Vittorio (1687) | Won 2-0 | +211559 |
| 3modern | 277 | Passarelli, Hayden (1810) | Won 2-0 | +221581 |
| 4modern | 231 | Gray, Jeremy (1460) | Won 2-0 | +161597 |
| 5modern | 24 | Ferry, Sergio (1647) | Lost 1-2 | -171580 |
| 6modern | 324 | Kennedy, Erik (1551) | Lost 1-2 | -191561 |
| 7modern | 640 | Cooper, Tyler (1630) | Lost 0-2 | -161545 |
| 8modern | 529 | Hord, Chad (1685) | Won 2-0 | +201565 |
| 9modern | 569 | Putnam, Robert (1512) | Won 2-0 | +171582 |
| 10modern | 389 | Daniere, Adam (1522) | Lost 0-2 | -191563 |
| 11modern | 360 | Maeda, Naoki (1537) | Lost 1-2 | -181545 |
| 12modern | 369 | Brizuela, Roland (1503) | Won 2-0 | +171562 |
| 13modern | 338 | Roberts, Kurtis (1676) | Won 2-1 | +201582 |
| 14modern | 230 | McDaniel, Charles (1776) | Lost 0-2 | -151567 |
| 15modern | 260 | DeVries, Jeremy (1525) | Won 2-0 | +181585 |
| top | average opponent: 1609record: 8-6 | new rating: 1585 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1567 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 283 | Branam, Joseph Mark (1518) | Won 2-0 | +171584 |
| 3sealed | 497 | Re, Joseph (1391) | Won 2-0 | +151599 |
| 4sealed | 2118 | Jong, Philip (1492) | Won 2-0 | +161615 |
| 5sealed | 91 | Zelick, Aaron (1633) | Lost 1-2 | -181597 |
| 6sealed | 122 | Nicely, Cody (1424) | Lost 0-2 | -211576 |
| 7sealed | 296 | Hutton, Lance (1564) | Lost 1-2 | -181558 |
| 8sealed | 412 | Taylor, Chad (1456) | Lost 1-2 | -201538 |
| top | average opponent: 1497record: 3-4 | new rating: 1538 | ||
| Grand Prix Omaha 2017 (AKH standard) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 170 | Cusick, Brian (1593) | Lost 0-2 | -181543 |
| 3standard | 251 | Cutchins, John (1533) | Won 2-0 | +181561 |
| 4standard | 109 | Wang, Yichen [CHN] (1774) | Lost 0-2 | -141547 |
| 5standard | 207 | Braatz, Samuel (1547) | Won 2-0 | +181565 |
| 6standard | 121 | Boatwright, Steve (1538) | Won 2-0 | +171582 |
| 7standard | 101 | Ward, Daniel (1868) | Won 2-1 | +231605 |
| 8standard | 74 | Morrow, Benjamin (1554) | Lost 1-2 | -191586 |
| 9standard | 121 | Pettice, Aaron (1520) | Lost 0-2 | -191567 |
| top | average opponent: 1616record: 4-4 | new rating: 1567 | ||
| Grand Prix Denver 2016 (KLD standard) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 115 | Adams, Jon (1467) | Won 2-0 | +161615 |
| 2standard | 318 | Culotta, Martin (1421) | Lost 1-2 | -221593 |
| 3standard | 487 | Powell, Shelton (1474) | Won 2-1 | +161609 |
| 4standard | 257 | Low, Arthur (1522) | Won 2-1 | +171626 |
| 5standard | 303 | Smith, RJ (1505) | Lost 0-0 | -211605 |
| 6standard | 386 | Landweber, Joseph (1533) | Won 2-1 | +171622 |
| 7standard | 146 | Kirkwood, Scott (1790) | Lost 1-2 | -151607 |
| 8standard | 372 | Carlsen, Sean (1530) | Won 2-1 | +171624 |
| 9standard | 225 | Simonson, Erik (1517) | Won 2-1 | +161640 |
| 10standard | 180 | Brinkman, Gunnar (1569) | Lost 0-2 | -191621 |
| 11standard | 191 | Taylor, Jaryn (1510) | Lost 1-2 | -201601 |
| 12standard | 183 | Davila, David (1522) | Won 2-1 | +161617 |
| 13standard | 158 | Tafoya, Michael (1547) | Lost 0-2 | -191598 |
| 14standard | 146 | DiMaggio, Matthew (1615) | Lost 1-2 | -181580 |
| 15standard | 134 | Canales, David (1490) | Lost 1-2 | -191561 |
| top | average opponent: 1534record: 7-8 | new rating: 1561 | ||
| Grand Prix Albuquerque 2016 (SOI limited) | starting rating: 1609 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 343 | Lewis, Kaitu (1500) | Won 2-0 | +161625 |
| 2sealed | 136 | Wagner, Bob (1598) | Lost 0-2 | -181607 |
| 3sealed | 469 | Cardwell, William (1535) | Won 2-1 | +171624 |
| 4sealed | 336 | Byrn, David (1700) | Won 2-1 | +191643 |
| 5sealed | 251 | Baker, Jason (1551) | Lost 1-2 | -201623 |
| 6sealed | 274 | Wilken, Frank (1473) | Lost 1-2 | -201603 |
| 7sealed | 369 | McClelon III, Robert (1501) | Won 2-1 | +161619 |
| 8sealed | 265 | Alderete, Jason (1538) | Lost 1-2 | -201599 |
| top | average opponent: 1550record: 4-4 | new rating: 1599 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1649 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 108 | Okowita, Alex (1588) | Lost 0-2 | -191630 |
| 2sealed | 361 | Jurek, Benjamin (1480) | Lost 0-2 | -211609 |
| top | average opponent: 1534record: 0-2 | new rating: 1609 | ||
| Grand Prix Denver 2011 (MBS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 468 | Martin, Sean (1613) | Won 2-0 | +201520 |
| 2sealed | 499 | McCartney, Mitch (1518) | Won 2-0 | +181538 |
| 3sealed | 417 | Wise, Steve (1539) | Lost 0-2 | -181520 |
| 4sealed | 472 | Glazier, James W (1520) | Won 2-1 | +181538 |
| 5sealed | 469 | Mcelyea, Jonathan (1535) | Won 2-0 | +181556 |
| 6sealed | 443 | Wiley, Jacob 2 (1557) | Won 2-0 | +181574 |
| 7sealed | 434 | Weeden, Eric (1613) | Lost 1-2 | -171557 |
| 8sealed | 460 | Thiessen, Jacob (1610) | Won 2-1 | +191576 |
| 9sealed | 423 | Iverson, William (1529) | Won 2-0 | +171593 |
| 10draft | 62 | Pu, Sherwin (1618) | Won 2-0 | +181611 |
| 11draft | 2 | Pratser, Matthew (1539) | Lost 0-2 | -191592 |
| 12draft | 39 | Summers, Ryan (1564) | Draw 1-1 | -11591 |
| 13draft | 37 | Bau, Philip (1727) | Won 2-1 | +211612 |
| 14draft | 9 | Montoya, Brandon (1630) | Won 2-1 | +181630 |
| 15draft | 16 | Emami, Kevan (1685) | Won 2-0 | +191649 |
| top | average opponent: 1586record: 11-3-1 | new rating: 1649 | ||