Jacobs, Derek
Current rating: 1550
Record: 22-20
| Grand Prix Madison 2015 (BFZ limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 378 | Teiken, Joseph (1500) | Won 2-1 | +181570 |
| 2sealed | 306 | Stone, Michael (1608) | Lost 1-2 | -181552 |
| 3sealed | 446 | Vietzke, Charles (1501) | Won 2-0 | +171569 |
| 4sealed | 423 | Oh, Joo Hyun (1551) | Won 2-0 | +181587 |
| 5sealed | 130 | Caligiuri, Scott (1579) | Lost 0-2 | -181569 |
| 6sealed | 414 | Williams, Gabriel (1497) | Lost 0-2 | -191550 |
| top | average opponent: 1539record: 3-3 | new rating: 1550 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1613 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1111 | DeMond, James (1522) | Lost 0-2 | -191594 |
| 2modern | 1543 | Latham, Kenny (1534) | Lost 1-2 | -191575 |
| 3modern | 1646 | Draper, Barton (1338) | Lost 1-2 | -231552 |
| top | average opponent: 1465record: 0-3 | new rating: 1552 | ||
| Grand Prix Atlanta 2012 (legacy) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 52 | Cox, Preston (1518) | Won 2-0 | +191514 |
| 3legacy | 140 | Wright, Matthew (1557) | Won 2-0 | +181532 |
| 4legacy | 56 | Harris, Rocky (1425) | Won 2-1 | +161548 |
| 5legacy | 56 | Inman, Jesse (1473) | Won 2-1 | +171565 |
| 6legacy | 16 | Bessette, Jake D (1664) | Won 2-0 | +201585 |
| 7legacy | 11 | Cone, Robert (1515) | Lost 1-2 | -191566 |
| 8legacy | 17 | Mahaffey, Christopher (1635) | Won 2-1 | +191585 |
| 9legacy | 9 | Tom, Kar Yung (1535) | Lost 0-2 | -191566 |
| 10legacy | 52 | Donegan, Dylan (1587) | Lost 0-2 | -181548 |
| 11legacy | 60 | McCready, Robert (1511) | Won 2-0 | +181566 |
| 12legacy | 43 | Akpinar, Tim (1585) | Won 2-1 | +181584 |
| 13legacy | 27 | White, Harold (1662) | Won 2-1 | +191603 |
| 14legacy | 26 | Merriam, Ross (1869) | Lost 1-2 | -131590 |
| 15legacy | 35 | Thompson, Gerry (1891) | Won 2-0 | +231613 |
| top | average opponent: 1602record: 10-4 | new rating: 1613 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 104 | Hawthorne, Mike (1518) | Lost 1-2 | -181471 |
| 3extended | 178 | Mercatoris, Stephan (1509) | Lost 1-2 | -171454 |
| 4extended | 207 | Bryant, Travis (1468) | Won 2-0 | +181472 |
| 5extended | 222 | Cavanagh, Kevin (1540) | Lost 1-2 | -171455 |
| 6extended | 205 | Burgin, Miles (1482) | Won 2-0 | +191474 |
| 7extended | 148 | Lear, Tanner (1502) | Won 2-0 | +181492 |
| 8extended | 105 | Campara, Alex F (1521) | Won 2-0 | +191511 |
| 9extended | 68 | Lorren, Phillip (1640) | Lost 1-2 | -161495 |
| top | average opponent: 1522record: 4-4 | new rating: 1495 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 55 | Gosche, Matt (1637) | Won 2-1 | +201538 |
| 5sealed | 8 | Dudley, Glen (1525) | Lost 1-2 | -181520 |
| 6sealed | 110 | Raney, Tom (1737) | Lost 1-2 | -141506 |
| 7sealed | 114 | Terra, Hugo (1548) | Lost 0-2 | -171489 |
| top | average opponent: 1612record: 1-3 | new rating: 1489 | ||
| Grand Prix Denver 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 46 | Tucker, Kim (1500) | Won 2-0 | +181518 |
| 2block | 19 | Alexandre, Trevor (1518) | Won 2-1 | +181536 |
| 3block | 38 | Marple, Chris (1537) | Lost 1-2 | -181518 |
| 4block | 95 | Munyer, Shane (1535) | Won 2-1 | +181536 |
| 5block | 51 | Poehling, Rick (1519) | Lost 1-2 | -181518 |
| 6block | 85 | Todd, Ben (1518) | Lost 1-2 | -181500 |
| 7block | 102 | Tucker, Tony (1500) | Won 2-0 | +181518 |
| top | average opponent: 1518record: 4-3 | new rating: 1518 | ||