Lum, Jonathan
Current rating: 1520
Record: 24-25 (GP) / 4-4 (professional)
| Regional Championships Atlanta 2023 (pioneer) | starting rating: 1548 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 108 | Barber, Ian (1929) | Lost 0-2 | -121536 |
| 2pioneer | 108 | Jurenko, Harrison (1487) | Lost 1-2 | -181518 |
| 3pioneer | 108 | Wright, Matthew C (1693) | Lost 0-2 | -151503 |
| 4pioneer | 108 | Baracchi, Mauricio (1499) | Lost 0-2 | -181485 |
| 5pioneer | 108 | Walker, Taylor (1356) | Won 2-0 | +151500 |
| 6pioneer | 108 | Larson, Greg (1602) | Won 2-0 | +201520 |
| top | average opponent: 1594record: 2-4 | new rating: 1520 | ||
| Regional Championships Atlanta 2022 (pioneer) | starting rating: 1584 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 1096 | Nelson, Jeremiah (1667) | Won 2-0 | +191603 |
| 2pioneer | 1096 | Flotten, Connor (1511) | Lost 1-2 | -201583 |
| 3pioneer | 1096 | Seder, Robert (1867) | Lost 0-2 | -121571 |
| 4pioneer | 1096 | Mullally, Colin (1475) | Lost 0-2 | -201551 |
| 5pioneer | 1096 | Galluzzi, Richard (1478) | Lost 0-2 | -201531 |
| 6pioneer | 1096 | Smith, Adrienne (1444) | Won 2-0 | +171548 |
| top | average opponent: 1574record: 2-4 | new rating: 1548 | ||
| Players Tour Phoenix 2020 (pioneer) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 117 | Baugh, Jacob (1778) | Won 2-0 | +221572 |
| 2draft | 44 | Monk, Rob (1491) | Won 2-1 | +161588 |
| 3draft | 82 | Walker, Noah (2008) | Won 2-0 | +261614 |
| 4pioneer | 1 | Coval, Brian (1826) | Lost 0-2 | -151599 |
| 5pioneer | 30 | Bursavich, Austin (2266) | Lost 0-2 | -71592 |
| 6pioneer | 58 | Maynard, Pascal (1823) | Won 2-0 | +221614 |
| 7pioneer | 31 | Paustian, Maxx (1647) | Lost 0-2 | -171597 |
| 8pioneer | 57 | Donegan, Dylan (1875) | Lost 1-2 | -131584 |
| top | average opponent: 1839record: 4-4 | new rating: 1584 | ||
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1585 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 220 | Silva, Danilo (1613) | Lost 0-2 | -171568 |
| 2modern | 309 | Hardie, Brian (1573) | Lost 0-2 | -181550 |
| top | average opponent: 1593record: 0-2 | new rating: 1550 | ||
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1594 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 281 | Dejong, Douglas (1500) | Lost 1-2 | -191575 |
| 2standard | 377 | Mace, Michael (1419) | Won 2-0 | +151590 |
| 3standard | 434 | Mangan, Kenneth (1564) | Lost 0-2 | -191571 |
| 4standard | 514 | Ide, Daniel (1483) | Won 2-0 | +171588 |
| 5standard | 360 | Marciaga, Luis (1529) | Won 2-0 | +171605 |
| 6standard | 257 | Gottlieb, Justin (1703) | Lost 1-2 | -161589 |
| 7standard | 326 | Poore, Christopher (1536) | Won 2-0 | +171606 |
| 8standard | 233 | Parus, Alexander (1464) | Lost 0-2 | -211585 |
| top | average opponent: 1525record: 4-4 | new rating: 1585 | ||
| Grand Prix Atlanta 2014 (JOU limited) | starting rating: 1584 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 428 | Gordon, Shawn (1432) | Won 2-0 | +151599 |
| 2sealed | 439 | Freeman, Chris (1509) | Won 2-1 | +161615 |
| 3sealed | 417 | Arch, Clayton (1611) | Lost 0-2 | -181597 |
| 4sealed | 494 | Carter, Dalton (1483) | Lost 1-2 | -201577 |
| 5sealed | 527 | Page, Jonathan (1487) | Won 2-1 | +171594 |
| 6sealed | 473 | Kingsley, James W (1634) | Won 2-1 | +181612 |
| 7sealed | 419 | Murray, Scott (1626) | Lost 0-2 | -181594 |
| top | average opponent: 1540record: 4-3 | new rating: 1594 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 450 | Brown, Robbie (1523) | Won 2-1 | +181579 |
| 3extended | 442 | Grady, Chris (1524) | Won 2-1 | +171596 |
| 4extended | 429 | Stark, Ben S (1971) | Lost 0-2 | -121584 |
| 5extended | 454 | Baboussis, George (1534) | Won 2-1 | +171601 |
| 6extended | 454 | Clark, David J (1527) | Won 2-0 | +171618 |
| 7extended | 451 | Keith, Jody (1715) | Lost 1-2 | -161602 |
| 8extended | 467 | Page, Joey (1596) | Lost 0-2 | -181584 |
| top | average opponent: 1627record: 4-3 | new rating: 1584 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 166 | Matecki, Justin (1523) | Lost 0-2 | -181482 |
| 3sealed | 214 | Trutt, Terry (1500) | Won 2-1 | +191501 |
| 4sealed | 139 | Baker, Chris 2 (1513) | Won 2-0 | +181519 |
| 5sealed | 140 | Mills, Bruce A (1524) | Won 2-1 | +181537 |
| 6sealed | 76 | Duke, Joshua (1538) | Won 2-1 | +181555 |
| 7sealed | 60 | Mason, Chris (1627) | Lost 0-2 | -171538 |
| 8sealed | 127 | Grenier, Daniel (1556) | Won 2-0 | +191557 |
| 9sealed | 84 | Klein, Steven (1600) | Won 2-0 | +181575 |
| 10draft | 39 | Piazza, Brett (1684) | Lost 0-2 | -161559 |
| 11draft | 18 | Sprowls, Brandon (1634) | Lost 0-2 | -161543 |
| 13draft | 18 | Duguid, James (1554) | Lost 0-2 | -181525 |
| 14draft | 36 | Barsness, Jake (1543) | Won 2-0 | +181543 |
| 15draft | 11 | steinwachs, alex (1550) | Won 2-0 | +181561 |
| top | average opponent: 1565record: 8-5 | new rating: 1561 | ||