Johnston, Brett
Current rating: 1676
Record: 74-51-2
Grand Prix Chicago 2012Grand Prix Denver 2013Grand Prix Charlotte 2013Grand Prix Kansas City 2013Grand Prix Minneapolis 2014Grand Prix Denver 2015Grand Prix Omaha 2015Grand Prix Las Vegas 2015 (2)Grand Prix Dallas-Fort Worth 2016Grand Prix Denver 2016Grand Prix Omaha 2017Grand Prix Portland 2018Grand Prix Kansas City 2019
| Grand Prix Kansas City 2019 (WAR standard) | starting rating: 1673 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 109 | Lee, Nathan (1535) | Won 2-0 | +161689 |
| 2standard | 198 | Smith, Barry (1670) | Lost 0-2 | -191670 |
| 3standard | 237 | Coop, Kyle (1499) | Won 2-1 | +151685 |
| 4standard | 206 | Trapani, Peter (1486) | Draw 0-0 | -31682 |
| 5standard | 71 | Turner, Brandon7669 (1606) | Won 2-0 | +161698 |
| 6standard | 116 | Gregory, Ryan L (1486) | Lost 1-2 | -221676 |
| top | average opponent: 1547record: 3-2-1 | new rating: 1676 | ||
| Grand Prix Portland 2018 (modern) | starting rating: 1783 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 505 | Kawamoto, Jeffree (1563) | Lost 0-2 | -221761 |
| 2modern | 605 | McFayden-Faint, Kaiden (1444) | Lost 0-2 | -231738 |
| 3modern | 747 | Edelglass, Brandon (1572) | Lost 0-2 | -211717 |
| 4modern | 825 | Brockamp, Erik (1445) | Won 2-1 | +131730 |
| 5modern | 720 | Statham, Richard (1460) | Lost 1-2 | -231707 |
| 6modern | 631 | Brooks, JoVanni (1313) | Won 2-0 | +111718 |
| 7modern | 485 | Maclachlan, Kyle (1464) | Lost 1-2 | -221696 |
| 8modern | 421 | Sorenson, Curtis (1444) | Lost 1-2 | -231673 |
| top | average opponent: 1463record: 2-6 | new rating: 1673 | ||
| Grand Prix Omaha 2017 (AKH standard) | starting rating: 1841 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 54 | Kraft, Alex (1500) | Won 2-0 | +121853 |
| 2standard | 16 | Britten, Matt (1609) | Lost 0-2 | -231830 |
| 3standard | 204 | Thoene, Matthew (1500) | Lost 0-2 | -241806 |
| 4standard | 351 | Sarchiapone, Joseph (1465) | Won 2-1 | +121818 |
| 5standard | 191 | Atkison, Jamie (1499) | Won 2-0 | +131831 |
| 6standard | 183 | Price, John (1473) | Lost 0-2 | -241807 |
| 7standard | 245 | Carlson, Blake (1502) | Lost 0-2 | -241783 |
| top | average opponent: 1507record: 3-4 | new rating: 1783 | ||
| Grand Prix Denver 2016 (KLD standard) | starting rating: 1818 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 320 | Brenner, Stefan (1450) | Won 2-0 | +111829 |
| 2standard | 78 | Li, Chen (1699) | Won 2-1 | +161845 |
| 3standard | 218 | Steuer, Nathan (1912) | Lost 1-2 | -171828 |
| 4standard | 425 | Leikam, Kenneth (1500) | Won 2-1 | +121840 |
| 5standard | 142 | Ellinger, Cody (1478) | Won 0-0 | +121852 |
| 6standard | 96 | Jen, Arthur (1477) | Draw 1-1 | -71845 |
| 7standard | 125 | Nass, Matthew (2044) | Lost 1-2 | -141831 |
| 8standard | 223 | Schoonover, Owen (1603) | Won 2-1 | +141845 |
| 9standard | 157 | Knorr, Jackson (1670) | Won 2-0 | +151860 |
| 10standard | 99 | Bond, Matthew (1742) | Lost 0-2 | -201840 |
| 11standard | 161 | Kitay, Kenneth (1552) | Won 2-1 | +121852 |
| 12standard | 113 | Chernyavsky, Dmitriy (1539) | Lost 1-2 | -231829 |
| 13standard | 142 | Agnew, Mike (1552) | Won 2-1 | +131842 |
| 14standard | 106 | Nelson, Evan (1914) | Won 2-1 | +191861 |
| 15standard | 78 | Juan, William (1714) | Lost 1-2 | -201841 |
| top | average opponent: 1656record: 9-5-1 | new rating: 1841 | ||
| Grand Prix Dallas-Fort Worth 2016 (modern) | starting rating: 1774 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 81 | DiFronzo, Rocco (1500) | Won 2-0 | +131787 |
| 2modern | 428 | Willis, Nicholas (1517) | Lost 1-2 | -231764 |
| 3modern | 594 | Flores, Ricardo (1430) | Won 2-1 | +121776 |
| 4modern | 510 | Adinolfi, Vincent (1759) | Won 2-0 | +181794 |
| 5modern | 144 | Hoffman, Kris (1757) | Lost 1-2 | -191775 |
| 6modern | 454 | Fortanely, Bobby (1842) | Won 2-1 | +201795 |
| 7modern | 406 | Williams, Kegan (1509) | Lost 0-2 | -231772 |
| 8modern | 471 | Alvarado, Joel (1519) | Won 2-1 | +131785 |
| 9modern | 230 | Engbrecht, Ryan (1607) | Won 2-0 | +151800 |
| 10modern | 281 | Swenson, Mark (1531) | Won 2-0 | +131813 |
| 11modern | 118 | Welder, Bevans (1582) | Lost 0-2 | -221791 |
| 12modern | 192 | Wasson, John (1732) | Lost 1-2 | -191772 |
| 13modern | 214 | Tang, Fredy (1545) | Won 2-0 | +141786 |
| 14modern | 180 | Pate, Jordan (1518) | Won 2-1 | +131799 |
| 15modern | 150 | Cocchiarella, Sam (1829) | Won 2-0 | +191818 |
| top | average opponent: 1612record: 10-5 | new rating: 1818 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1787 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 173 | Mozden, Joshua (1423) | Won 2-0 | +111798 |
| 3sealed | 5 | Isaacs, Jason (1605) | Won 2-0 | +151813 |
| 4sealed | 4 | Dissinger, Cory (1679) | Won 2-0 | +151828 |
| 5sealed | 18 | Mullan, Paul (1536) | Won 2-0 | +131841 |
| 6sealed | 16 | Elias, Dustin (1536) | Lost 0-2 | -231818 |
| 7sealed | 38 | Rockenbach, Nathan (1575) | Lost 1-2 | -221796 |
| 8sealed | 89 | Pittenger, Tom (1595) | Lost 1-2 | -221774 |
| top | average opponent: 1564record: 4-3 | new rating: 1774 | ||
| Grand Prix Omaha 2015 (modern) | starting rating: 1615 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 252 | LaBrie, Nathan (1431) | Won 2-1 | +151630 |
| 2modern | 62 | Manns, Eric (1575) | Won 2-1 | +171647 |
| 3modern | 171 | Jones, Will (1604) | Won 2-0 | +171664 |
| 4modern | 72 | Farnsworth, Erik (1578) | Lost 1-2 | -201644 |
| 5modern | 146 | Nelson, Brandon (1979) | Won 2-0 | +241668 |
| 6modern | 141 | Rasmussen, Matt (1512) | Won 2-0 | +151683 |
| 7modern | 37 | Gonzalez, Sonny (1649) | Won 2-1 | +181701 |
| 8modern | 46 | Phelps, John (1631) | Won 2-1 | +161717 |
| 9modern | 14 | Brown, Andrew (1976) | Won 2-1 | +231740 |
| 10modern | 6 | Elenbogen, Andrew (2065) | Won 2-1 | +241764 |
| 11modern | 5 | Gay, Randall (1823) | Lost 0-2 | -171747 |
| 12modern | 11 | Black, Samuel (2089) | Lost 0-2 | -121735 |
| 13modern | 32 | Kaplan, Louis (1929) | Won 2-1 | +211756 |
| 14modern | 28 | Buss, John (1605) | Won 2-1 | +161772 |
| 15modern | 15 | Greenleaf, Matthew (1607) | Won 2-1 | +151787 |
| top | average opponent: 1737record: 12-3 | new rating: 1787 | ||
| Grand Prix Denver 2015 (KTK standard) | starting rating: 1651 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 475 | Caswell, Ben (1525) | Lost 0-2 | -201631 |
| 2standard | 600 | Wang, Lucas (1482) | Lost 1-2 | -211610 |
| 3standard | 653 | Sanchez, Alexis (1464) | Won 2-0 | +151625 |
| 4standard | 501 | Jones, Derek (1485) | Lost 0-2 | -201605 |
| 5standard | 550 | Luttrell Jr, Stephen (1464) | Won 2-0 | +151620 |
| 6standard | 466 | Entwhistle, Zander (1481) | Lost 0-2 | -201600 |
| 7standard | 380 | Johnson, Jeffery (1452) | Won 2-0 | +151615 |
| top | average opponent: 1479record: 3-4 | new rating: 1615 | ||
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1648 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 380 | Ayers, Brandon (1750) | Lost 1-2 | -161632 |
| 2modern | 587 | Matheson, Jack (1483) | Won 2-0 | +151647 |
| 3modern | 557 | Niemi, Joseph (1501) | Lost 1-2 | -201627 |
| 4modern | 825 | Baca, Robert (1644) | Won 2-0 | +181645 |
| 5modern | 653 | Yost, Brett (1535) | Lost 0-2 | -201625 |
| 6modern | 574 | Hunsicker, Noah (1483) | Won 2-0 | +151640 |
| 7modern | 502 | Helsper, Jade (1450) | Won 2-0 | +151655 |
| 8modern | 345 | Napier, Joe (1498) | Lost 1-2 | -211634 |
| 9modern | 349 | Wagener, Andrew (1565) | Won 2-0 | +171651 |
| top | average opponent: 1545record: 5-4 | new rating: 1651 | ||
| Grand Prix Kansas City 2013 (modern) | starting rating: 1595 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 69 | Amundsen, Rune (1608) | Won 2-1 | +181613 |
| 4modern | 126 | Ohlrogge, Tyler (1496) | Lost 0-2 | -201593 |
| 5modern | 137 | Pozsgay, Michael (1711) | Won 2-0 | +201613 |
| 6modern | 72 | Minard, Darin (1849) | Lost 0-2 | -141599 |
| 7modern | 150 | Edgar, Brian (1619) | Won 2-0 | +191618 |
| 8modern | 58 | Dewailly, Benjamen (1516) | Won 2-1 | +161634 |
| 9modern | 64 | Gonzalez, Sonny (1575) | Won 2-0 | +171651 |
| 10modern | 59 | Derezinski, Brandon S (1601) | Won 2-1 | +171668 |
| 11modern | 13 | Ryder, Sean (1756) | Lost 1-2 | -161652 |
| 12modern | 44 | Yost, Austin (1683) | Lost 0-2 | -181634 |
| 13modern | 46 | Fine, Bobby (1562) | Won 2-0 | +171651 |
| 14modern | 33 | Maine, Andrew (1639) | Won 2-0 | +181669 |
| 15modern | 27 | Johnson, Cody S (1534) | Lost 1-2 | -211648 |
| top | average opponent: 1627record: 8-5 | new rating: 1648 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 60 | Jones, Eric (1654) | Lost 1-2 | -161517 |
| 3sealed | 298 | Guild, Jacob (1715) | Won 2-0 | +221539 |
| 4sealed | 363 | Finstrom, Jim (1631) | Won 2-1 | +201559 |
| 5sealed | 184 | Owens, Reid (1482) | Won 2-1 | +161575 |
| 6sealed | 57 | Heywood, Julius (1464) | Lost 1-2 | -201555 |
| 7sealed | 161 | Huff, Sean (1541) | Won 2-0 | +181573 |
| 8sealed | 131 | Mann, Stephen (1937) | Won 2-0 | +241597 |
| 9sealed | 40 | Bowman, Adam (1489) | Won 2-1 | +161613 |
| 10sealed | 144 | Brooks, Brad (1591) | Lost 1-2 | -181595 |
| top | average opponent: 1612record: 6-3 | new rating: 1595 | ||
| Grand Prix Denver 2013 (legacy) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 110 | Mullen, Zachary (1527) | Lost 0-2 | -181538 |
| 3legacy | 229 | Anderson, James (1448) | Lost 1-2 | -201518 |
| 4legacy | 259 | Maahs, Karl (1480) | Lost 1-2 | -191499 |
| 5legacy | 301 | Marcum, Jeremy (1466) | Won 2-0 | +181517 |
| 6legacy | 247 | DORSEY, NOAH (1480) | Won 2-0 | +171534 |
| 7legacy | 195 | Graves, Robert X (1516) | Lost 1-2 | -181516 |
| 8legacy | 173 | Kattner, Craig (1489) | Won 2-0 | +171533 |
| top | average opponent: 1487record: 3-4 | new rating: 1533 | ||
| Grand Prix Chicago 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 68 | Lopez, Eric (1500) | Won 2-1 | +181518 |
| 2modern | 165 | Kelly, Frank (1449) | Won 2-1 | +171535 |
| 3modern | 159 | Pounds, Robert (1607) | Lost 0-2 | -171518 |
| 4modern | 365 | Robertson, Antwayne (1499) | Won 2-1 | +181536 |
| 5modern | 172 | Blommel, Christopher (1537) | Lost 1-2 | -181518 |
| 6modern | 315 | Hansen, Josh (1447) | Won 2-0 | +161534 |
| 7modern | 191 | Hartman, Reed (1575) | Won 2-0 | +191553 |
| 8modern | 156 | Kowal, Brian (1711) | Lost 0-2 | -151538 |
| 9modern | 144 | McCusker, Jerrod (1547) | Won 2-1 | +181556 |
| top | average opponent: 1541record: 6-3 | new rating: 1556 | ||