Barnum, James
Current rating: 1630
Record: 40-33-2
| Grand Prix Los Angeles 2019 (modern) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 101 | Sanchez, Jack (1534) | Won 2-1 | +171603 |
| 2modern | 267 | Ochoa, Raul (1548) | Won 2-0 | +171620 |
| 3modern | 2 | Rosellini, Jason (1804) | Won 2-0 | +221642 |
| 4modern | 118 | Martinez, Phillip (1392) | Lost 0-2 | -231619 |
| 5modern | 153 | Brake, Dj (1509) | Won 2-1 | +161635 |
| 6modern | 154 | Nguyen, Philip (1525) | Lost 0-2 | -201615 |
| 7modern | 248 | Hooper, Jared (1522) | Won 2-0 | +161631 |
| 8modern | 173 | Castro, Angel (1477) | Won 2-0 | +161647 |
| 9modern | 120 | Truong, Daniel (1739) | Lost 0-2 | -171630 |
| top | average opponent: 1561record: 6-3 | new rating: 1630 | ||
| Grand Prix Portland 2018 (modern) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 458 | Chapman, Michael (1581) | Won 2-1 | +181587 |
| 2modern | 151 | Lu, Robert (1617) | Lost 0-2 | -171570 |
| 3modern | 474 | Stene, Ryan (1500) | Won 2-0 | +171587 |
| 4modern | 291 | Wisdom, Kenny (1521) | Won 2-1 | +161603 |
| 5modern | 105 | McLaughlin, Patrick (1585) | Won 2-1 | +181621 |
| 6modern | 222 | Morse, Sean (1791) | Lost 0-2 | -151606 |
| 7modern | 226 | Dickler, Kyle (1503) | Lost 1-2 | -201586 |
| top | average opponent: 1585record: 4-3 | new rating: 1586 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1629 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 203 | Seto, George (1500) | Lost 0-2 | -201609 |
| 2standard | 496 | Spencer, Joseph (1484) | Lost 1-2 | -211588 |
| 3standard | 612 | Swartz, Kyle (1511) | Lost 0-2 | -191569 |
| top | average opponent: 1498record: 0-3 | new rating: 1569 | ||
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1601 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 70 | Rittener, Gabriel (1398) | Won 2-0 | +141615 |
| 2legacy | 143 | Nicely, Cody (1452) | Won 2-0 | +151630 |
| 3legacy | 327 | Reed, Michael (1634) | Lost 1-2 | -181612 |
| 4legacy | 491 | Wilcox, Jeff (1522) | Won 2-1 | +161628 |
| 5legacy | 272 | Clark, Jeffrey (1671) | Lost 1-2 | -171611 |
| 6legacy | 310 | Larsen, Erik (1426) | Won 2-0 | +151626 |
| 7legacy | 184 | Wilson, Jacob [USA] (1584) | Won 2-1 | +171643 |
| 8legacy | 176 | Festini, Mark (1861) | Lost 1-2 | -141629 |
| top | average opponent: 1569record: 5-3 | new rating: 1629 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1612 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 358 | Lin, Jianfeng (1616) | Lost 0-2 | -181594 |
| 2standard | 563 | Morrone, David (1420) | Won 2-1 | +151609 |
| 3standard | 459 | Goodhue, Jeff (1496) | Won 2-1 | +161625 |
| 4standard | 324 | Von Difloe, Tanner (1717) | Won 2-1 | +201645 |
| 5standard | 189 | Johnson, Matthew (1435) | Lost 0-2 | -221623 |
| 6standard | 424 | May, Daniel (1506) | Won 2-1 | +161639 |
| 7standard | 286 | Parker, Thomas (1621) | Lost 0-2 | -191620 |
| 8standard | 257 | Scott-Lewis, Benjamin (1524) | Lost 0-2 | -191601 |
| top | average opponent: 1542record: 4-4 | new rating: 1601 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2136 | Davis, Jeffrey (1497) | Won 2-0 | +161602 |
| 2modern | 33 | Teran, Cory (1627) | Won 2-0 | +191621 |
| 3modern | 327 | Whelan, Austin (1539) | Lost 1-2 | -201601 |
| 4modern | 915 | Mondel, Johnathan (1503) | Won 2-1 | +171618 |
| 5modern | 502 | Cranfill, Drew (1631) | Won 2-0 | +181636 |
| 6modern | 184 | Lotz, William (1562) | Draw 1-1 | -21634 |
| 7modern | 282 | Harper, Travis (1631) | Lost 1-2 | -181616 |
| 8modern | 503 | Napolitano, David (1447) | Won 2-0 | +151631 |
| 9modern | 341 | Lynch, Michael (1561) | Lost 1-2 | -191612 |
| top | average opponent: 1556record: 5-3-1 | new rating: 1612 | ||
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 479 | Myers, Dakota (1500) | Won 2-0 | +181505 |
| 2legacy | 7 | Berlinrut, Gregory (1524) | Won 2-0 | +181523 |
| 3legacy | 490 | Mines, David (1922) | Lost 0-2 | -111512 |
| 4legacy | 406 | Frazier, Gene (1530) | Won 2-0 | +191531 |
| 5legacy | 301 | Finken, Kyle (1451) | Won 2-1 | +161547 |
| 6legacy | 319 | Gustafsson, Hugo (1534) | Won 2-1 | +181565 |
| 7legacy | 226 | Xing, Tinac (1696) | Won 2-0 | +201585 |
| 8legacy | 117 | Paolini, Michael (1613) | Won 2-1 | +191604 |
| 9legacy | 61 | Goddard, Maxwell (1758) | Lost 0-2 | -151589 |
| 10legacy | 110 | Luks, Luis (1702) | Won 2-1 | +201609 |
| 11legacy | 71 | Pikula, Chris (2002) | Lost 1-2 | -111598 |
| 12legacy | 164 | Chung, Jason (1966) | Lost 1-2 | -121586 |
| top | average opponent: 1683record: 8-4 | new rating: 1586 | ||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 26 | Stednitz, David (1440) | Lost 0-2 | -191454 |
| 4standard | 468 | Quaas-Annsa, Heather (1487) | Won 2-0 | +191473 |
| 5standard | 239 | Meade, Larry (1419) | Won 2-1 | +171490 |
| 6standard | 177 | O'Leary, PJ (1500) | Won 2-1 | +181508 |
| 7standard | 101 | Ward, Daniel (1898) | Lost 1-2 | -111497 |
| 8standard | 160 | Goldstein, Danny (1789) | Lost 1-2 | -131484 |
| 9standard | 274 | Newhouse, Jackson (1594) | Won 0-0 | +201504 |
| 10standard | 212 | Tkatchenko, Yaroslav (1544) | Lost 1-2 | -171487 |
| top | average opponent: 1584record: 4-4 | new rating: 1487 | ||
| Grand Prix Oakland 2016 (BFZ standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 241 | Montoya, Thomas (1521) | Draw 1-1 | 01505 |
| 3standard | 405 | Mason, Greg (1585) | Won 2-1 | +201525 |
| 4standard | 217 | Gardiner, Grant (1523) | Lost 1-2 | -181507 |
| 5standard | 407 | Ma, Jesse (1593) | Lost 0-2 | -171490 |
| 6standard | 539 | Miles, Willis (1535) | Lost 1-2 | -171473 |
| top | average opponent: 1551record: 1-3-1 | new rating: 1473 | ||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 346 | Conrad, Lance (1556) | Lost 0-2 | -171483 |
| 3legacy | 707 | Gillett, William (1489) | Lost 1-2 | -181465 |
| 4legacy | 812 | Burdick, Sam (1484) | Won 2-1 | +181483 |
| 5legacy | 519 | Nguyen, Kenny (1575) | Won 2-0 | +201503 |
| 6legacy | 551 | Shukla, Neeraj (1520) | Won 2-0 | +181521 |
| 7legacy | 303 | Nir, JD (1604) | Lost 0-2 | -161505 |
| top | average opponent: 1538record: 3-3 | new rating: 1505 | ||