Mangels, James
Current rating: 1523
Record: 27-24-5
| Grand Prix Louisville 2017 (legacy) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 392 | Oden, Jon (1500) | Won 2-1 | +171589 |
| 2legacy | 494 | Knierim, Grant (1410) | Lost 1-2 | -221567 |
| 3legacy | 684 | Olds, Adam (1498) | Won 2-0 | +171584 |
| 4legacy | 676 | McConnell, Lance (1415) | Draw 1-1 | -31581 |
| 5legacy | 655 | Seelye, Lisa (1614) | Won 2-1 | +191600 |
| 6legacy | 518 | Dreher, Gregory (1523) | Lost 1-2 | -201580 |
| 7legacy | 654 | Foerst, James (1516) | Lost 0-2 | -191561 |
| 8legacy | 719 | Anes, David (1507) | Lost 0-2 | -191542 |
| 9legacy | 718 | Castleberry, Greg (1480) | Lost 0-2 | -191523 |
| top | average opponent: 1496record: 3-5-1 | new rating: 1523 | ||
| Grand Prix Columbus 2016 (legacy) | starting rating: 1632 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 187 | Sprague, Matt (1588) | Lost 0-2 | -191613 |
| 2legacy | 568 | Piazza, John (1706) | Lost 0-2 | -161597 |
| 3legacy | 882 | Critch, Jason (1484) | Lost 0-2 | -201577 |
| 4legacy | 861 | Baka, Nathaniel (1448) | Won 2-0 | +151592 |
| 5legacy | 766 | Facsina, Stephen (1464) | Lost 1-2 | -201572 |
| top | average opponent: 1538record: 1-4 | new rating: 1572 | ||
| Grand Prix San Diego 2013 (modern) | starting rating: 1624 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 199 | Escalante, Arthur (1500) | Won 2-0 | +151639 |
| 2modern | 8 | Barrera, Alexander (1574) | Won 2-0 | +171656 |
| 3modern | 46 | McAtee, Brian (1520) | Lost 1-2 | -201636 |
| 4modern | 243 | Arriola, James (1525) | Draw 1-1 | -21634 |
| 5modern | 189 | Yi, Michael (1519) | Draw 1-1 | -21632 |
| top | average opponent: 1528record: 2-1-2 | new rating: 1632 | ||
| Grand Prix Denver 2013 (legacy) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 115 | Weeden, Eric (1664) | Lost 0-2 | -161562 |
| 2legacy | 206 | Austin, Brian (1475) | Won 2-1 | +161578 |
| 3legacy | 156 | Crump, Justin (1551) | Won 2-0 | +181596 |
| 4legacy | 177 | Householder, Robert (1518) | Draw 1-1 | -21594 |
| 5legacy | 174 | Salinas, Alex (1500) | Won 2-1 | +171611 |
| 6legacy | 118 | Mullins, Terry (1497) | Won 2-0 | +161627 |
| 7legacy | 69 | Steele, Thea (1565) | Won 2-1 | +161643 |
| 8legacy | 42 | Tang, Jeffery (1549) | Lost 1-2 | -191624 |
| top | average opponent: 1540record: 5-2-1 | new rating: 1624 | ||
| Grand Prix Indianapolis 2012 (legacy) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 170 | Alderson, Andrew R (1500) | Won 2-1 | +181541 |
| 2legacy | 215 | Dean, Paul (1639) | Lost 1-2 | -161525 |
| 3legacy | 369 | Guibault, Josh A (1568) | Won 2-1 | +181543 |
| 4legacy | 214 | Wilt, Carl (1499) | Won 2-1 | +181561 |
| 5legacy | 168 | Brown, Dylan [USA] (1551) | Lost 1-2 | -191542 |
| 6legacy | 350 | Ganz, Andreas (1701) | Lost 0-2 | -151527 |
| 7legacy | 299 | Rivas, Adrian (1499) | Won 2-1 | +181545 |
| 8legacy | 240 | Kline, Charles (1441) | Won 2-1 | +161561 |
| 9legacy | 187 | Knox, Dustin (1527) | Won 2-1 | +171578 |
| top | average opponent: 1547record: 6-3 | new rating: 1578 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 81 | Coleman, Allison (1500) | Won 2-1 | +171545 |
| 2legacy | 151 | Bettens, Eric T (1485) | Lost 1-2 | -191526 |
| 3legacy | 214 | Bergstein, Julian (1503) | Won 2-1 | +181544 |
| 4legacy | 119 | Van Haecke, Jason (1518) | Won 2-1 | +171561 |
| 5legacy | 66 | Reaves, Marshall Louis (1535) | Draw 1-1 | 01561 |
| 6legacy | 88 | Little, Patrick B (1483) | Lost 1-2 | -201541 |
| 7legacy | 133 | Kalbus, Wes (1534) | Lost 0-2 | -181523 |
| top | average opponent: 1508record: 3-3-1 | new rating: 1523 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 5 | Schieble, Adam (1466) | Lost 0-2 | -181447 |
| 2sealed | 449 | Carney, Shawn (1482) | Won 2-0 | +191466 |
| 3sealed | 219 | Carroll, Tom (1500) | Won 2-0 | +181484 |
| 4sealed | 167 | Spear, Azrael (1632) | Won 2-1 | +211505 |
| 5sealed | 118 | Sosko, Darin J (1538) | Won 2-0 | +191524 |
| 6sealed | 110 | Juni, Jonathan (1556) | Lost 0-2 | -181506 |
| 7sealed | 176 | Hansard, Brendon (1571) | Won 2-0 | +191525 |
| 8sealed | 143 | Flippin, Derek (1554) | Won 2-1 | +191544 |
| 9sealed | 99 | Bielick, Scott (1645) | Lost 0-2 | -161528 |
| top | average opponent: 1549record: 6-3 | new rating: 1528 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 125 | Hann, David S (1561) | Won 2-0 | +191519 |
| 2legacy | 260 | Bryant, Jamison (1518) | Lost 0-2 | -181501 |
| 3legacy | 259 | Thurston, Jason (1502) | Lost 0-2 | -181483 |
| 4legacy | 515 | Hanning, Jordan (1481) | Lost 0-2 | -181465 |
| top | average opponent: 1516record: 1-3 | new rating: 1465 | ||