Balla, John
Current rating: 1677
Record: 63-44-1 (GP) / 6-6 (professional)
Grand Prix Las Vegas 2001Pro Tour Osaka 2002Grand Prix Anaheim 2003Grand Prix Phoenix 2006Grand Prix San Francisco 2007Grand Prix Los Angeles 2009Grand Prix Oakland 2010Grand Prix Boston-Worcester 2012Grand Prix San Diego 2015Grand Prix Albuquerque 2016Grand Prix Las Vegas 2017 (limited)Grand Prix Las Vegas 2018 (limited)Grand Prix Los Angeles 2019Grand Prix Phoenix 2019Grand Prix Reno 2020
| Grand Prix Reno 2020 (THB limited) | starting rating: 1708 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 216 | Levy, Justin (1530) | Won 2-1 | +141722 |
| 2sealed | 123 | Ruckman, Dalton (1345) | Lost 1-2 | -241698 |
| 3sealed | 206 | Houston, Joey (1502) | Won 2-1 | +141712 |
| 4sealed | 124 | Hayden, Maxwell (1769) | Lost 0-2 | -171695 |
| 5sealed | 179 | Fusco, Roman (1676) | Lost 0-2 | -181677 |
| top | average opponent: 1564record: 2-3 | new rating: 1677 | ||
| Grand Prix Phoenix 2019 (ELD limited) | starting rating: 1703 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 128 | Min, Max (1479) | Won 2-0 | +141717 |
| 2sealed | 65 | Yu, Haiyue (1546) | Draw 1-1 | -31714 |
| 3sealed | 130 | Kober, Craig (1567) | Won 2-1 | +151729 |
| 4sealed | 74 | Cunniff, Raphael (1940) | Won 2-0 | +221751 |
| 5sealed | 35 | Denney, Timothy (1786) | Lost 1-2 | -171734 |
| 6sealed | 85 | Weber, Joe (1659) | Lost 0-2 | -201714 |
| 7sealed | 125 | He, Jennifer (1557) | Won 2-1 | +151729 |
| 8sealed | 82 | Wang, Tony (1523) | Lost 0-2 | -211708 |
| top | average opponent: 1632record: 4-3-1 | new rating: 1708 | ||
| Grand Prix Los Angeles 2019 (modern) | starting rating: 1747 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 212 | Chang, Stephen (1527) | Lost 1-2 | -221725 |
| 2modern | 554 | Moskowitz, Gilad (1490) | Lost 0-2 | -221703 |
| top | average opponent: 1509record: 0-2 | new rating: 1703 | ||
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1677 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 579 | Rizzo, Anthony (1357) | Won 2-0 | +131690 |
| 2sealed | 96 | Adams, Shawn (1536) | Lost 0-2 | -211669 |
| 3sealed | 487 | Lewandowski, Kevin (1356) | Won 2-0 | +121681 |
| 4sealed | 409 | Austria, Alfred (1449) | Won 2-1 | +141695 |
| 5sealed | 171 | Hresc, Tomas (1541) | Won 2-0 | +151710 |
| 6sealed | 71 | Deleon, Nolan (1507) | Won 2-0 | +151725 |
| 7sealed | 59 | Martinez, Jose [GTM] (1574) | Won 2-1 | +151740 |
| 8sealed | 76 | Blanchet, Eric (1847) | Won 2-1 | +201760 |
| 9sealed | 15 | Weiser, Daniel (1992) | Won 2-0 | +221782 |
| 10draft | 5006 | Eager, Nathan (1647) | Lost 1-2 | -201762 |
| 11draft | 5111 | Crosby, Michael (1932) | Lost 0-2 | -151747 |
| 12draft | 5040 | Poh, Solomon (1810) | Won 2-1 | +191766 |
| 13draft | 5052 | Breland, Andy (1524) | Won 2-1 | +141780 |
| 14draft | 5043 | Jacobs, Adam (1572) | Lost 0-2 | -221758 |
| 15draft | 5036 | Duke, Reid (2177) | Lost 1-2 | -111747 |
| top | average opponent: 1655record: 10-5 | new rating: 1747 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1616 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 381 | Edelkamp, Erik (1558) | Won 2-0 | +171633 |
| 2sealed | 173 | Rios, Gabriel (1380) | Won 2-1 | +141647 |
| 3sealed | 345 | Montgomery, Connor (1433) | Won 2-0 | +141661 |
| 4sealed | 80 | Cranmer, Nicholas (1554) | Won 2-1 | +161677 |
| 5sealed | 14 | Mori, Katsuhiro (1999) | Lost 1-2 | -121665 |
| 6sealed | 165 | Dixon, Joseph (1456) | Won 2-1 | +141679 |
| 7sealed | 114 | Bartholow, David (1620) | Won 2-1 | +171696 |
| 8sealed | 65 | Labarbera, Franklin (1624) | Won 2-1 | +171713 |
| 9sealed | 25 | White, Logan (1814) | Lost 1-2 | -171696 |
| 10draft | 22 | Catterson, Matthew (1631) | Lost 1-2 | -191677 |
| top | average opponent: 1607record: 7-3 | new rating: 1677 | ||
| Grand Prix Albuquerque 2016 (SOI limited) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 26 | Haaf, Christopher (1464) | Won 2-0 | +151619 |
| 2sealed | 19 | Sanders-Reed, Kiernan (1502) | Won 2-0 | +161635 |
| 3sealed | 80 | Frank, Matt (1476) | Won 2-1 | +151650 |
| 4sealed | 107 | Thuemler, Joseph (1786) | Lost 0-2 | -151635 |
| 5sealed | 108 | Smith, Eric (1667) | Lost 1-2 | -181617 |
| 6sealed | 298 | Schwartz, Daniel I (1518) | Won 2-1 | +171634 |
| 7sealed | 119 | Diaz, Daniel (1538) | Won 2-0 | +161650 |
| 8sealed | 149 | Wilken, Frank (1513) | Lost 0-2 | -211629 |
| 9sealed | 153 | Maginnis, Peter (1914) | Lost 1-2 | -131616 |
| top | average opponent: 1598record: 5-4 | new rating: 1616 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1650 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 128 | Manifold, Riley (1462) | Won 2-0 | +151665 |
| 2standard | 138 | Tukeman, Sammy (1576) | Lost 1-2 | -201645 |
| 3standard | 488 | Alexander, Kevin (1508) | Lost 1-2 | -201625 |
| 4standard | 568 | Cummings, Brandon (1485) | Lost 1-2 | -211604 |
| top | average opponent: 1508record: 1-3 | new rating: 1604 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1682 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 512 | Fazio, Amanda (1466) | Won 2-0 | +141696 |
| 2sealed | 364 | Holmes, Evan (1422) | Lost 0-2 | -231673 |
| 3sealed | 549 | Shields, Alex (1383) | Lost 0-2 | -231650 |
| top | average opponent: 1424record: 1-2 | new rating: 1650 | ||
| Grand Prix Oakland 2010 (extended) | starting rating: 1697 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 152 | busgano, alfredo j (1500) | Won 2-1 | +141711 |
| 2extended | 45 | Shearer, Alexander (1446) | Lost 0-2 | -221689 |
| 3extended | 192 | Tian, William (1500) | Won 2-1 | +141703 |
| 4extended | 158 | Lin, Le (1521) | Lost 0-2 | -211682 |
| top | average opponent: 1492record: 2-2 | new rating: 1682 | ||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1674 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 178 | Surs, Michael (1500) | Won 2-0 | +151689 |
| 2extended | 31 | Preston, Zach (1614) | Won 2-0 | +171706 |
| 3extended | 136 | Grann, Samuel (1507) | Won 2-1 | +141720 |
| 4extended | 21 | Black, Samuel (1712) | Lost 0-2 | -181702 |
| 5extended | 113 | Kastner, Donald (1816) | Lost 1-2 | -161686 |
| 6extended | 190 | Athanassiadis, Alexander (1518) | Won 2-1 | +151701 |
| 7extended | 134 | Vitullo, Joshua (1532) | Won 2-1 | +151716 |
| 8extended | 57 | Nelson, Tanner (1490) | Won 2-1 | +141730 |
| 9extended | 46 | Castor, Kenny (1673) | Won 2-0 | +171747 |
| 10extended | 30 | Umamoto, Derek (1608) | Lost 0-2 | -201727 |
| 11extended | 55 | Fuentes, Jeremy (1612) | Won 2-1 | +151742 |
| 12extended | 27 | Froehlig, Timothy (1512) | Won 2-0 | +141756 |
| 13extended | 24 | Sperling, Matthew (1686) | Lost 0-2 | -191737 |
| 14extended | 30 | Martinez, Axel (1621) | Lost 0-2 | -201717 |
| 15extended | 41 | Stewart, Josh (1602) | Lost 0-2 | -201697 |
| top | average opponent: 1600record: 9-6 | new rating: 1697 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1677 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 218 | Bowers, Jason (1500) | Lost 0-2 | -211656 |
| 2block | 244 | Sanson, Albert (1467) | Won 2-1 | +141670 |
| 3block | 133 | Sedani, Robert (1500) | Lost 1-2 | -211649 |
| 4block | 228 | warren, evan b (1487) | Won 2-0 | +151664 |
| 5block | 193 | Rogers, Don (1500) | Won 2-1 | +151679 |
| 6block | 136 | Bang, Eugene (1517) | Won 2-0 | +151694 |
| 7block | 79 | Rand, Justin (1581) | Lost 0-2 | -201674 |
| top | average opponent: 1507record: 4-3 | new rating: 1674 | ||
| Grand Prix Phoenix 2006 (CSP limited) | starting rating: 1662 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 112 | Hemler, Matthew (1500) | Won 2-0 | +151677 |
| 2sealed | 10 | Davis, Chris H (1500) | Lost 0-2 | -211656 |
| 3sealed | 59 | Gaieck, Raymond (1500) | Won 2-0 | +151671 |
| 4sealed | 90 | Lassen, Stephanie L (1519) | Won 2-1 | +151686 |
| 5sealed | 40 | Palamarczuk, Andrey (1492) | Won 2-1 | +141700 |
| 6sealed | 54 | Ravitz, Joshua (1690) | Lost 0-2 | -181682 |
| 7sealed | 42 | Blakely, Tim (1538) | Won 2-0 | +161698 |
| 8sealed | 45 | Sandler, Noah (1550) | Lost 0-2 | -211677 |
| top | average opponent: 1536record: 5-3 | new rating: 1677 | ||
| Grand Prix Anaheim 2003 (extended) | starting rating: 1681 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 75 | Rivkin, Marc (1500) | Won 2-1 | +151696 |
| 2extended | 22 | Levin, Eugene (1439) | Lost 0-2 | -231673 |
| 3extended | 72 | Davis, Brent (1497) | Won 2-1 | +151688 |
| 4extended | 60 | Dolbeer, Jed (1497) | Lost 1-2 | -211667 |
| 5extended | 96 | Eslami, Ali (1510) | Won 2-0 | +151682 |
| 6extended | 64 | Pannell, Thomas (1561) | Lost 1-2 | -201662 |
| top | average opponent: 1501record: 3-3 | new rating: 1662 | ||
| Pro Tour Osaka 2002 (Odyssey block) | starting rating: 1657 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 44 | Budde, Kai (2214) | Lost 0-2 | -91648 |
| 2block | 134 | Leiher, Peter (1816) | Won 2-1 | +211669 |
| 3block | 93 | Kibler, Brian (1962) | Won 2-0 | +231692 |
| 4block | 28 | Menzer, Tony (1605) | Lost 0-2 | -191673 |
| 5block | 61 | Hager, Lucas (1644) | Won 2-0 | +171690 |
| 6block | 66 | Braun, Oliver (1679) | Won 2-1 | +181708 |
| 7block | 27 | Turian, Michael (1874) | ID | 01708 |
| 8block | 28 | Gemund, Tobias (1559) | Lost 0-2 | -211687 |
| 9block | 42 | Ito, Akitsugu (1663) | Won 2-1 | +181705 |
| 10block | 26 | Rubin, Benjamin (1918) | Lost 1-2 | -141691 |
| 11block | 40 | Cunningham, Jeff (1908) | Lost 0-2 | -141677 |
| 12block | 43 | Gennari, Raphael (1827) | Won 2-1 | +201697 |
| 13block | 35 | Karlsson, Morgan (1801) | Lost 1-2 | -161681 |
| top | average opponent: 1806record: 6-6-1 | new rating: 1681 | ||
| Grand Prix Las Vegas 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 82 | Macey, Bill (1447) | Lost 0-2 | -191481 |
| 3extended | 104 | Hahn, Andrew (1500) | Won 2-0 | +181499 |
| 4extended | 125 | Strock, Corey (1442) | Won 2-0 | +171516 |
| 5extended | 73 | Toops, David (1499) | Won 2-1 | +181534 |
| 6extended | 63 | Parker, Brock (1908) | Won 2-1 | +251559 |
| 7extended | 15 | Loerke, David (1572) | ID | 01559 |
| 8extended | 22 | Gutierrez, Daniel (1572) | Won 2-1 | +181577 |
| 9extended | 18 | Mindes, Michael (1598) | Won 2-1 | +181595 |
| 10extended | 10 | Hron, Mike (1613) | Won 2-0 | +181613 |
| 11extended | 4 | Pustilnik, Michael (1901) | Won 2-0 | +241637 |
| 12extended | 3 | Taylor, Eric (1713) | Won 2-1 | +191656 |
| 13extended | 1 | Anderson, Kaare (1710) | ID | 01656 |
| Qextended | Gerhardt, Scott (1684) | Won 2-0 | +191675 | |
| Sextended | Lane, Adam E (1692) | Lost 1-2 | -181657 | |
| top | average opponent: 1632record: 10-2-2 | new rating: 1657 | ||