May, John
Current rating: 1685
Record: 29-15-1 (GP) / 2-4 (professional)
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1709 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 332 | William, Kenneth (1500) | Won 2-1 | +141723 |
| 2sealed | 183 | Blahut, Regis (1500) | Won 2-0 | +141737 |
| 3sealed | 229 | Loysen, Lucas (1499) | Lost 0-2 | -221715 |
| 4sealed | 322 | Coffman, Robert (1452) | Lost 0-2 | -231692 |
| 5sealed | 319 | Halverson, Erik (1515) | Won 2-0 | +151707 |
| 6sealed | 202 | Zhang, Yinan (1476) | Lost 1-2 | -221685 |
| top | average opponent: 1490record: 3-3 | new rating: 1685 | ||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1740 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 277 | Casale, John (1500) | Won 2-1 | +131753 |
| 4standard | 206 | Pannone, Adam (1656) | Lost 1-2 | -191734 |
| 5standard | 321 | Tautic, Raymond (1806) | Lost 1-2 | -171717 |
| 6standard | 387 | Rittiner, Joe (1481) | Won 2-0 | +141731 |
| 7standard | 189 | Pascal, Brandon (1502) | Lost 1-2 | -221709 |
| top | average opponent: 1589record: 2-3 | new rating: 1709 | ||
| Pro Tour San Diego 2010 (WWK standard) | starting rating: 1787 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 28 | Niemeyer, Johnny (1605) | Won 2-1 | +141801 |
| 2standard | 88 | Burton, Hunter (2007) | Won 2-0 | +221823 |
| 3standard | 36 | Kanis, Jeroen (1693) | Lost 1-2 | -201803 |
| 4standard | 35 | Stoffa, Gabriel (1636) | Lost 0-2 | -211782 |
| 5standard | 98 | Brendemuhl, Bernd (1720) | Lost 1-2 | -191763 |
| 6draft | 133 | McKnight, Joshua (1482) | Lost 0-2 | -231740 |
| top | average opponent: 1690record: 2-4 | new rating: 1740 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1630 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 94 | Cortez, Paulo Ricardo (1720) | Lost 0-2 | -161614 |
| 5sealed | 120 | Langewisch, Topher (1535) | Won 2-0 | +161630 |
| 6sealed | 32 | Berrios, Ricardo (1620) | Won 2-0 | +181648 |
| 7sealed | 68 | Manfield, Seth (1893) | Won 2-1 | +221670 |
| 8sealed | 34 | Fox, Christopher R (1589) | Won 2-1 | +171687 |
| 9sealed | 25 | Blankenship, George (1628) | Won 2-0 | +171704 |
| 10draft | 60 | De Biasi, Julio (1639) | Won 2-0 | +171721 |
| 11draft | 39 | Stark, Ben S (1890) | Won 2-1 | +211742 |
| 12draft | 17 | Waxer, Nathan (1667) | Won 2-0 | +161758 |
| 13draft | 5 | Massicard, Yann (2004) | Won 2-0 | +231781 |
| 14draft | 47 | Vidugiris, Gaudenis (1963) | ID | 01781 |
| 15draft | 51 | Majlaton, Alex (1886) | ID | 01781 |
| Qdraft | Ross, Tom (1934) | Won 2-1 | +211802 | |
| Sdraft | Woods, Conley (1978) | Lost 0-2 | -151787 | |
| top | average opponent: 1782record: 10-2-2 | new rating: 1787 | ||
| Grand Prix Philadelphia 2005 (legacy) | starting rating: 1621 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 63 | Richardson, Jason (1539) | Won 2-0 | +171638 |
| 2legacy | 44 | Monahan, Sean (1500) | Lost 0-2 | -211617 |
| 3legacy | 131 | Sanchez, Juan C (1500) | Won 2-0 | +161633 |
| 4legacy | 130 | Mijanovich, Burns (1519) | Won 2-1 | +161649 |
| 5legacy | 55 | Davis, Jim (1581) | Lost 0-2 | -191630 |
| top | average opponent: 1528record: 3-2 | new rating: 1630 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1647 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 79 | Magner, Christopher (1518) | Won 2-1 | +151662 |
| 3extended | 11 | Morawski, Jonathan (1675) | Draw 1-1 | +11663 |
| 4extended | 87 | White, Ron (1501) | Lost 0-2 | -211642 |
| 5extended | 147 | Baboussis, George (1519) | Lost 0-2 | -211621 |
| top | average opponent: 1553record: 1-2-1 | new rating: 1621 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 87 | Garcia, Onyx (1518) | Lost 1-2 | -181482 |
| 3block | 236 | Fishman, Alex (1499) | Won 2-0 | +191501 |
| 4block | 221 | Meckes, Josh (1501) | Won 2-1 | +181519 |
| 5block | 134 | Quirk, Kevin (1705) | Won 2-0 | +211540 |
| 6block | 39 | Gladden, Jim (1553) | Won 2-1 | +181558 |
| 7block | 63 | Davis, Jim (1522) | Won 2-1 | +181576 |
| 8block | 16 | Schunk, Jason (1595) | Won 2-1 | +181594 |
| 9block | 21 | Minicucci, Domenic (1605) | Won 2-0 | +181612 |
| 10block | 9 | Shiels, David (1635) | Won 2-1 | +191631 |
| 11block | 8 | Horvath, Adam (1929) | Lost 1-2 | -131618 |
| 12block | 18 | Budde, Kai (2048) | Won 2-1 | +251643 |
| 13block | 9 | Weitz, David (1849) | Lost 1-2 | -141629 |
| 14block | 14 | Shek, Vincent (1615) | Won 2-1 | +181647 |
| 15block | 14 | Lynch, Brian (1697) | ID | 01647 |
| top | average opponent: 1662record: 10-3-1 | new rating: 1647 | ||