Zaczek, Jonathon
Current rating: 1821 (#1747)

Grand Prix Minneapolis 2019 (modern) starting rating: 1838
round table opponent (rating) result Δrating
2 123 Bechtold, Sam (1518) Won 2-1 +121850
3 110 Pelowski, Nickolas (1442) Won 2-0 +111861
4 70 Hawron, Richard (1531) Lost 0-2 -241837
5 56 Plocher, Justin (1601) Lost 1-2 -221815
6 133 Larson, Koltton (1516) Won 2-0 +131828
7 101 Kuntz, Emily (1488) Won 2-1 +121840
8 138 Burton, Brandon (1805) Lost 0-2 -191821
top average opponent: 1557record: 4-3 new rating: 1821

Grand Prix Portland 2018 (modern) starting rating: 1773
round table opponent (rating) result Δrating
2 277 Storr, Nicholas (1471) Won 2-0 +121785
3 326 Phung, Thien (1529) Lost 0-2 -221763
4 215 Klinkenberg, Chester (1521) Won 2-1 +131776
5 285 Fallin, Kevin (1552) Won 2-1 +141790
6 105 Kiefer, Quinn (1804) Lost 0-2 -171773
7 211 Bernacel, Toshonni (1513) Won 2-0 +131786
8 177 Pace, Stanley (1579) Won 2-1 +141800
9 91 Skelton, Kyle (1861) Lost 1-2 -171783
10 146 Herod, Jim (1544) Won 2-0 +141797
11 105 Lam, Gautier (1729) Won 2-0 +171814
12 62 Caswell, Ben (1596) Won 2-1 +141828
13 45 LeBlanc, Joseph (1636) Lost 0-2 -211807
14 56 Zamora, Eddie (1772) Won 2-0 +171824
15 61 Roether, Oscar (1592) Won 2-0 +141838
top average opponent: 1621record: 10-4 new rating: 1838

Grand Prix Las Vegas 2018 (modern) (modern) starting rating: 1743
round table opponent (rating) result Δrating
3 392 Lao, Benjamin (1584) Won 2-1 +151758
4 80 Sherman, Anthony (1341) Won 2-0 +111769
5 75 Antivilo, David (1581) Won 2-0 +141783
6 9 Wray, James (1917) Won 2-1 +211804
7 26 Thompson, Gerry (2034) Lost 0-2 -141790
8 107 Kegley, Benjamin (1723) Lost 0-2 -191771
9 5179 Boykowich, Dylan (1681) Lost 1-2 -201751
10 5185 Guggemos, Jim (1463) Won 2-0 +131764
11 5137 Straub, Devon (1588) Lost 1-2 -211743
12 1559 Kitay, Kenneth (1598) Won 2-0 +151758
13 5110 Millner, Tyler (1580) Won 2-1 +151773
14 5076 Clingan, Casey (1657) Won 2-1 +161789
15 5061 Collins, Kenyon (1891) Lost 1-2 -161773
top average opponent: 1665record: 8-5 new rating: 1773

Grand Prix Toronto 2018 (modern) starting rating: 1764
round table opponent (rating) result Δrating
3 256 Siecker, Rob (1585) Lost 1-2 -211743
4 319 Dore, Felix (1554) Won 2-1 +151758
5 114 Brunnen, Kevin (1506) Won 2-1 +131771
6 179 Hutchinson-Chee, Aidan (1554) Lost 1-2 -221749
7 224 Moody, Gavin (1532) Won 2-0 +141763
8 220 Lewis, Matthew (1632) Lost 1-2 -201743
top average opponent: 1560record: 3-3 new rating: 1743

Grand Prix Minneapolis 2017 (HOU standard) starting rating: 1788
round table opponent (rating) result Δrating
3 62 White, Eli (1526) Won 2-1 +141802
4 99 Hall, Daniel (1877) Lost 0-2 -171785
5 215 Dubay, David (1481) Lost 1-2 -231762
6 256 Graham, Alek (1465) Won 2-1 +121774
7 137 Germar, Richard (1754) Won 2-1 +181792
8 77 Haversat, Jacob (1955) Won 2-1 +211813
9 100 Wcislo, Daniel (1617) Won 2-1 +141827
10 494 Cheng, Jonathan (1673) Lost 0-2 -201807
11 540 D'Souza, Kenith (1730) Lost 1-2 -201787
12 588 Choma, Matthew (1508) Lost 0-2 -231764
top average opponent: 1659record: 5-5 new rating: 1764

Pro Tour Hour of Devastation (HOU standard) starting rating: 1875
round table opponent (rating) result Δrating
1 205 Mengucci, Andrea (1849) Lost 0-2 -191856
2 218 Romao, Carlos (1833) Lost 0-2 -181838
3 180 Pope, Matthew (1797) Lost 1-2 -191819
4 226 Marshall, Bob (1492) Won 2-1 +131832
5 184 Brodzak, Michal (1740) Won 2-0 +161848
6 139 Stroh, Kim (1960) Lost 0-2 -161832
7 157 Wibmer, Sebastian (1752) Lost 0-2 -201812
8 193 Maruyama, Muneyuki (1455) Lost 1-2 -241788
top average opponent: 1735record: 2-6 new rating: 1788

Grand Prix Las Vegas 2017 (modern) (modern) starting rating: 1941
round table opponent (rating) result Δrating
3 251 Solis Mancilla, Oscar (1458) Won 2-1 +91950
4 117 Bell, Matthew (1534) Lost 0-2 -251925
5 499 Lachance, Sebastien (1467) Lost 1-2 -261899
6 753 Candib, Aaron (1600) Lost 1-2 -231876
7 759 Kean, Matthew (1517) Lost 0-2 -241852
8 871 Hawkins, Donald (1506) Won 2-0 +121864
9 644 O'Neill, Chris (1469) Won 2-0 +111875
top average opponent: 1507record: 3-4 new rating: 1875

Grand Prix Las Vegas 2017 (legacy) (legacy) starting rating: 1978
round table opponent (rating) result Δrating
3 374 O'Brien, Cody (1544) Won 2-1 +101988
4 135 Harriss-Bauer, Miles (1726) Lost 1-2 -221966
5 358 Verbiest, Bart (1756) Won 2-0 +141980
6 229 Smith, Sean (1771) Won 2-0 +141994
7 220 Henderson, Craig (1522) Lost 0-2 -261968
8 375 Cano Garcia, Jaime (1617) Won 2-0 +121980
9 198 Prinsloo, Theuns (1699) Won 2-1 +131993
10 144 Hummel, Gary (1604) Lost 1-2 -251968
11 160 Kosmel, Kyle (1594) Won 2-1 +121980
12 150 Ku, David (1683) Draw 1-1 -61974
13 127 Liewendahl, Christopher (1762) Lost 0-2 -211953
14 166 Wallace, Adam (1690) Won 2-1 +131966
15 125 Woods, Jeff (1538) Lost 0-2 -251941
top average opponent: 1654record: 7-5-1 new rating: 1941

Grand Prix Vancouver 2017 (modern) starting rating: 1818
round table opponent (rating) result Δrating
2 2187 Robertson, Matt [CAN] (1501) Won 2-1 +121830
3 2046 Xu, David (1475) Won 2-0 +121842
4 2074 Goss, Riley (1532) Lost 0-2 -231819
5 2201 Van Der Merwe, Atom (1506) Won 2-1 +121831
6 2138 Jacobson, Mark (1976) Won 2-1 +211852
7 2079 McClenaghan, David (1661) Won 2-1 +141866
8 2062 Mei, Mike Songhao (1854) Won 2-1 +181884
9 2032 Tierney, Patrick (1918) Won 2-0 +191903
10 2020 Hare, Ryan (1891) Lost 1-2 -181885
11 2037 Cooper, Travis (1640) Won 2-0 +131898
12 2026 Muise, Evan (1642) Won 2-1 +141912
13 2011 Christensen, Drew (1852) Won 2-0 +161928
14 2009 Henderson, Steven (1595) Won 2-0 +131941
15 2004 Fortanely, Bobby (1966) Won 2-1 +181959
Q Stern, Jon (1915) Won 2-1 +171976
S Black, Samuel (2021) Won 2-0 +191995
F Utter-Leyton, Josh (2031) Lost 1-2 -171978
top average opponent: 1763record: 14-3 new rating: 1978

Grand Prix Indianapolis 2016 (modern) starting rating: 1787
round table opponent (rating) result Δrating
3 25 Yim, Chi Hoi (1720) Lost 1-2 -191768
4 555 Conlin, Paul (1452) Won 2-0 +121780
5 146 Johnson, Brandon (1493) Won 2-1 +131793
6 85 Darnall, Matthew (1585) Won 2-0 +141807
7 63 George, Timothy (1655) Won 2-1 +151822
8 79 DeMars, Brian (1869) Lost 1-2 -171805
9 126 White, Tyler (1576) Won 2-1 +141819
10 885 Kuhlow, Chris (1642) Won 2-0 +151834
11 877 Mengucci, Andrea (1968) Won 2-1 +201854
12 862 Mickler, Matthew (1675) Won 2-0 +151869
13 843 Dean, Paul (2010) Lost 0-2 -151854
14 877 Hill, Tyler (2127) Lost 1-2 -131841
15 880 Faulkner, Andrew (1583) Lost 0-2 -231818
top average opponent: 1719record: 8-5 new rating: 1818

Grand Prix Oklahoma City 2015 (modern) starting rating: 1795
round table opponent (rating) result Δrating
3 35 Frady, Keane (1678) Won 0-0 +161811
4 37 McDaniel, Charles (1559) Lost 0-2 -231788
5 112 Whitson, Tyler (1565) Lost 0-2 -221766
6 175 Hampton, Casey (1486) Won 2-0 +131779
7 196 King, Anthony (1674) Lost 1-2 -191760
8 206 Black, James (1459) Won 2-0 +121772
9 159 Warren, Edward (1581) Won 2-1 +151787
top average opponent: 1572record: 4-3 new rating: 1787

Grand Prix Copenhagen 2015 (modern) starting rating: 1681
round table opponent (rating) result Δrating
2 285 Hoi Rasmussen, Mikkel (1615) Won 2-1 +171698
3 224 Rossi, Kevin (1641) Won 2-0 +171715
4 127 Persson, Martin (1525) Lost 1-2 -221693
5 169 Telarov, Aleksa (1764) Lost 1-2 -161677
6 345 Christiansen, Niclas (1529) Won 2-1 +151692
7 246 Nava, Elio (1544) Won 2-0 +151707
8 81 Payen, Jeremy (1570) Won 2-0 +161723
9 100 Myrvig, Peter (1831) Won 2-1 +201743
10 51 van der Vaart, Jasper (1607) Draw 1-1 -31740
11 51 Cammilluzzi, Marco (1983) Lost 1-2 -131727
12 65 Le Briand, Loic (1818) Won 2-0 +191746
13 49 Tenthof Van Noorden, Joko (1631) Won 2-0 +161762
14 32 Goddik, Hans Jacob (1698) Won 2-0 +171779
15 23 Michelsen, Mark (1677) Won 2-1 +161795
top average opponent: 1674record: 10-3-1 new rating: 1795

Grand Prix Charlotte 2015 (modern) starting rating: 1678
round table opponent (rating) result Δrating
2 919 van Sickle, Joseph (1516) Lost 0-2 -211657
3 1033 Toye, James (1459) Won 2-0 +151672
4 903 Wetmore, Mike (1580) Won 2-0 +161688
5 789 Sadowsky, Joel (1656) Lost 0-2 -181670
6 872 Olesberg, Michael (1569) Won 2-1 +161686
7 696 Williams, Adam K (1537) Won 2-1 +151701
8 616 Rogers, Dakota (1581) Lost 1-2 -201681
top average opponent: 1557record: 4-3 new rating: 1681

Grand Prix Vancouver 2015 (modern) starting rating: 1639
round table opponent (rating) result Δrating
3 23 Liu, Freeman (1539) Won 2-0 +161655
4 63 Denno, Sebastian (1686) Lost 0-2 -171638
5 190 Larsson, Chris (1557) Won 2-1 +161654
6 108 Steier, Terry (1649) Lost 0-2 -181636
7 175 Feldman, Benjamin (1523) Won 2-0 +161652
8 84 Haggstrom, Alex (1537) Won 2-0 +161668
9 31 Fletcher, Joshua (1544) Won 2-0 +161684
10 43 Grandjambe, Travis (1720) Won 2-0 +191703
11 27 Falk, Coleman (1548) Lost 0-2 -211682
12 34 Muller, Timothy (1686) Lost 1-2 -181664
13 46 Okada, Yoshikazu (1665) Won 2-1 +181682
14 34 Vance, Michael (1726) Lost 1-2 -171665
15 40 Martin, Russ (1425) Won 2-0 +131678
top average opponent: 1600record: 8-5 new rating: 1678

Grand Prix Omaha 2015 (modern) starting rating: 1470
round table opponent (rating) result Δrating
2 146 Edwards, Terry (1557) Won 2-1 +191489
3 122 Wise, Steve (1829) Lost 0-2 -121477
4 220 Jones, Aj (1518) Lost 1-2 -171460
5 265 Penton, Dan (1504) Won 2-1 +191479
6 191 Gerfen, Jacob (1516) Won 2-0 +191498
7 160 Kennedy, Nicholas (1572) Won 2-1 +191517
8 89 Hickman, Wesley (1626) Won 2-0 +201537
9 49 Schreiner, Kyle (1589) Won 2-1 +191556
10 40 Overturf, Ryan (1755) Won 2-1 +211577
11 16 Leehey, Cameron (1609) Won 2-0 +191596
12 22 Speck, Stephen (1625) Lost 1-2 -181578
13 35 Hepola, Brandon (1600) Won 2-0 +191597
14 22 Schmidt, Travis (1590) Won 2-1 +181615
15 18 Sullivan, Adrian (1985) Won 2-0 +241639
top average opponent: 1634record: 11-3 new rating: 1639

Grand Prix Vienna 2013 (THS standard) starting rating: 1500
round table opponent (rating) result Δrating
2 227 Prosek, Daniel (1697) Lost 1-2 -141486
3 549 Lanna, Giuseppe (1500) Won 2-1 +181504
4 286 Witez, Lars (1517) Won 2-0 +181522
5 263 Hesse, Rudiger (1521) Lost 0-2 -181504
6 433 Solomon, Sorin (1495) Lost 0-2 -181486
7 366 Cekaj, Kristian (1551) Won 2-0 +191505
8 361 Koliopoulos, Christos (1520) Lost 1-2 -181487
9 323 Slavkovky, Rastislav (1507) Lost 1-2 -171470
top average opponent: 1539record: 3-5 new rating: 1470