Southers, Derrick
Current rating: 1549
Record: 13-10-1
| Grand Prix Columbus 2016 (legacy) | starting rating: 1596 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 179 | Summers, Hunter (1500) | Draw 1-1 | -21594 |
| 2legacy | 423 | Kubovcik, Kyle (1500) | Won 2-0 | +161610 |
| 3legacy | 407 | Johnson, Vincent (1662) | Lost 1-2 | -171593 |
| 4legacy | 584 | Turner, Bobby (1498) | Won 2-1 | +171610 |
| 5legacy | 398 | Blackburn, Jacob (1503) | Won 2-0 | +161626 |
| 6legacy | 781 | Budgell, Lane (1521) | Lost 0-2 | -201606 |
| 7legacy | 397 | Woods, Jacob (1520) | Lost 0-2 | -201586 |
| 8legacy | 491 | Chan, Eric (1687) | Lost 0-2 | -161570 |
| 9legacy | 450 | Reuschel, Carl (1407) | Lost 0-2 | -211549 |
| average opponent: 1533record: 3-5-1 | new rating: 1549 | |||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 765 | DiNino, Justin (1500) | Won 2-1 | +181518 |
| 2legacy | 841 | Kilts, Mason (1480) | Won 2-0 | +171535 |
| 3legacy | 930 | Wray, James (1388) | Won 2-0 | +161551 |
| 4legacy | 742 | Skorik, Andrew (1583) | Won 2-0 | +181569 |
| 5legacy | 595 | Mitchell, Wayne (1585) | Won 2-1 | +191588 |
| 6legacy | 578 | Heykamp, Andrew (1613) | Lost 1-2 | -181570 |
| 7legacy | 624 | Belanger, Maxim (1640) | Won 2-1 | +191589 |
| 8legacy | 608 | Pryor, Christopher (1589) | Lost 0-2 | -181571 |
| 9legacy | 641 | Hildreth, Nicholas (1645) | Won 2-1 | +201591 |
| 10legacy | 105 | Sagnay, Philip (1637) | Won 2-1 | +181609 |
| 11legacy | 64 | Williams, James (1746) | Won 2-0 | +211630 |
| 12legacy | 45 | Nunez, David (1652) | Lost 0-2 | -181612 |
| 13legacy | 100 | Clair, William (1612) | Lost 1-2 | -181594 |
| 14legacy | 132 | Hatch, Benjamin (1681) | Lost 0-2 | -161578 |
| 15legacy | 148 | Marklyn, Tyler (1576) | Won 2-1 | +181596 |
| average opponent: 1595record: 10-5 | new rating: 1596 | |||