Roberts, Jacob
Current rating: 1619
Record: 31-23-1
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1633 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 40 | Peterson, Jackson (1527) | Won 2-1 | +161649 |
| 4legacy | 18 | Ulanov, Denis (1745) | Lost 0-2 | -171632 |
| 5legacy | 246 | McKeown, Ian (1499) | Lost 0-2 | -201612 |
| 6legacy | 364 | Klopchic, Luke (1711) | Won 2-1 | +201632 |
| 7legacy | 246 | Prost, Andrejs (1951) | Lost 0-2 | -131619 |
| top | average opponent: 1687record: 2-3 | new rating: 1619 | ||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1674 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 190 | Wright, Christopher (1559) | Lost 0-2 | -201654 |
| 2standard | 614 | Turner, Jeremy (1415) | Won 2-0 | +131667 |
| 3standard | 410 | Tabor, Chris (1462) | Lost 1-2 | -211646 |
| 4standard | 661 | Ferguson, Ian (1443) | Won 2-1 | +141660 |
| 5standard | 586 | Plant, John (1501) | Won 2-0 | +151675 |
| 6standard | 366 | Brent, Ryan (1457) | Lost 1-2 | -221653 |
| 7standard | 411 | Dossen, George (1500) | Lost 1-2 | -201633 |
| top | average opponent: 1477record: 3-4 | new rating: 1633 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1699 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 220 | Finnsson, Erik (1401) | Won 2-0 | +131712 |
| 2sealed | 341 | Wong, Kenton (1461) | Won 2-0 | +141726 |
| 3sealed | 129 | Eckart, Quinn (1507) | Lost 0-0 | -221704 |
| 4sealed | 221 | Mummery, Ryan (1512) | Lost 1-2 | -221682 |
| 5sealed | 519 | McDermott, John (1598) | Won 2-0 | +171699 |
| 6sealed | 451 | Baker, Chris (1650) | Lost 1-2 | -191680 |
| 7sealed | 428 | Clarke, Jamie (1495) | Won 2-0 | +141694 |
| 8sealed | 284 | Hartwell, David (1547) | Lost 1-2 | -201674 |
| top | average opponent: 1521record: 4-4 | new rating: 1674 | ||
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1607 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 247 | Wong, Jeffrey (1446) | Lost 1-2 | -211586 |
| 2sealed | 499 | Brown, Robert (1453) | Won 2-0 | +161602 |
| 3sealed | 600 | Fontaine, Jacob (1464) | Won 2-1 | +151617 |
| 4sealed | 396 | Snow, Daniel (1605) | Won 2-1 | +181635 |
| 5sealed | 304 | Pardonner, Matthew (1538) | Won 2-1 | +161651 |
| 6sealed | 96 | Egli, Walter (1608) | Lost 0-2 | -191632 |
| 7sealed | 265 | Auyeung, Julian (1530) | Won 2-1 | +161648 |
| 8sealed | 194 | Peterson, Brandon (1561) | Won 2-0 | +171665 |
| 9sealed | 130 | Davis, Joshua (1568) | Won 2-1 | +161681 |
| 10draft | 10 | Vitullo, Joshua (1684) | Won 2-1 | +181699 |
| 11draft | 72 | Rubin, Jonathan (1799) | Draw 1-1 | +21701 |
| 12draft | 26 | Karakarlis, Andrew (1532) | Lost 1-2 | -211680 |
| 13draft | 14 | Demers, Francois (1708) | Won 2-0 | +181698 |
| 14draft | 67 | Van Cleave, Trey (1878) | Lost 1-2 | -141684 |
| 15draft | 39 | Karakarlis, Andrew (1558) | Won 2-0 | +151699 |
| top | average opponent: 1595record: 10-4-1 | new rating: 1699 | ||
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 379 | Ketelsen, Anthony (1500) | Won 2-1 | +181483 |
| 2sealed | 213 | Huang, Nicholas (1518) | Won 2-0 | +191502 |
| 3sealed | 159 | Ingram, Peter (1866) | Won 2-1 | +241526 |
| 4sealed | 78 | Pargh, William (1729) | Won 2-0 | +221548 |
| 5sealed | 56 | Rubin, Jonathan (1699) | Lost 0-2 | -151533 |
| 6sealed | 131 | Fitzgerald, Charles (1532) | Won 2-0 | +181551 |
| 7sealed | 98 | Green, Benjamin (1804) | Lost 0-2 | -141537 |
| 8sealed | 135 | McAllister, Bob (1675) | Won 2-1 | +211558 |
| 9sealed | 70 | Stanley, Robert (1558) | Won 2-0 | +181576 |
| 11draft | 45 | Fay, Timothy (1668) | Won 2-0 | +201596 |
| 12draft | 16 | Lee, Eric 2 (1629) | Won 2-1 | +181614 |
| 13draft | 23 | LePine, Mark (1902) | Won 2-0 | +231637 |
| 14draft | 62 | Fabiano, Gerard (1951) | Lost 0-2 | -121625 |
| 15draft | 60 | Word, James (1628) | Lost 0-2 | -181607 |
| top | average opponent: 1690record: 10-4 | new rating: 1607 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 9 | Woyiwada, Tyler (1538) | Won 2-0 | +191519 |
| 2sealed | 412 | Meaker, Danny S (1467) | Lost 1-2 | -191500 |
| 3sealed | 640 | Corley, Michael (1623) | Lost 0-2 | -161484 |
| 4sealed | 647 | Bravstein, Randy (1473) | Lost 1-2 | -181466 |
| 5sealed | 693 | Cordes, William (1449) | Won 2-0 | +171483 |
| 6sealed | 576 | deBorja, Peter (1449) | Lost 0-2 | -181465 |
| top | average opponent: 1500record: 2-4 | new rating: 1465 | ||