Campbell, Derek
Current rating: 1654
Record: 34-27
| Grand Prix Detroit 2016 (modern) | starting rating: 1707 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 240 | Echerivel, Chachi (1410) | Lost 1-2 | -231684 |
| 2modern | 974 | Vanderpool, Chad (1439) | Won 2-0 | +131697 |
| 3modern | 534 | Robinson, Stephen (1501) | Lost 1-2 | -211676 |
| 4modern | 1090 | Rice, Donald (1409) | Lost 0-2 | -231653 |
| 5modern | 1095 | Kacani, Ardit (1463) | Won 2-0 | +151668 |
| 6modern | 890 | Stachyra, Krzysztof (1459) | Lost 0-2 | -221646 |
| 7modern | 854 | Lopez, Anthony (1461) | Won 2-0 | +151661 |
| 8modern | 668 | Collins, Randall (1494) | Lost 1-2 | -211640 |
| 9modern | 625 | Judis, Jack (1465) | Won 2-1 | +141654 |
| top | average opponent: 1456record: 4-5 | new rating: 1654 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 872 | Yan, Kenneth (1500) | Won 2-1 | +181513 |
| 2modern | 254 | Miller, Brad (1511) | Won 2-1 | +181531 |
| 3modern | 384 | Elsik, Zac (2016) | Won 2-0 | +271558 |
| 4modern | 21 | Lozinski, Daniel (1711) | Won 2-1 | +201578 |
| 5modern | 52 | Wilson, Jacob (1940) | Won 2-1 | +251603 |
| 6modern | 19 | Nelson, Dan (1828) | Won 2-1 | +221625 |
| 7modern | 2 | Jensen, William (1811) | Won 2-1 | +211646 |
| 8modern | 625 | Loring, Russell (1547) | Won 2-1 | +161662 |
| 9modern | 7 | Norman, Allen (1707) | Won 2-0 | +191681 |
| 10modern | 4 | Wienburg, Ben (1999) | Won 2-0 | +241705 |
| 11modern | 1 | Huynh, Anthony (1854) | Lost 0-2 | -161689 |
| 12modern | 10 | Simon, Michael (1739) | Won 2-1 | +191708 |
| 13modern | 7 | Liu, Brian (1906) | Won 2-1 | +221730 |
| 14modern | 3 | Burkhart, Corey (2164) | Lost 1-2 | -111719 |
| 15modern | 7 | Sigrist, Mike (2045) | Lost 0-2 | -121707 |
| top | average opponent: 1819record: 12-3 | new rating: 1707 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 515 | Aprim, Chris (1518) | Won 2-1 | +181522 |
| 2modern | 259 | Moore, Walter (1522) | Won 2-1 | +181540 |
| 3modern | 262 | Miller, Josef (1544) | Lost 0-2 | -181522 |
| 4modern | 334 | Snyder, Jeramy (1520) | Lost 1-2 | -181504 |
| 5modern | 502 | Stemkowski, Matthew (1487) | Won 2-1 | +181522 |
| 6modern | 331 | McMillan, Tj (1584) | Lost 0-2 | -171505 |
| 7modern | 449 | Delano, Jonathan (1768) | Lost 0-2 | -141491 |
| 8modern | 396 | MacEachern, James (1572) | Won 2-0 | +201511 |
| 9modern | 349 | Simmonds, Alex (1644) | Lost 1-2 | -161495 |
| top | average opponent: 1573record: 4-5 | new rating: 1495 | ||
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 323 | Waugh, James (1654) | Lost 0-2 | -151506 |
| 2sealed | 402 | Wanich, Mark (1527) | Won 2-0 | +181524 |
| 3sealed | 402 | Shore, Ian (1553) | Won 2-1 | +181542 |
| 4sealed | 365 | Johnson, James A (1516) | Lost 0-2 | -181524 |
| 5sealed | 376 | Blanchet, Eric (1553) | Won 2-0 | +191543 |
| 6sealed | 221 | Boyer, John (1371) | Lost 1-2 | -221521 |
| 7sealed | 259 | Liang, Yong Li (1534) | Lost 1-2 | -171504 |
| top | average opponent: 1530record: 3-4 | new rating: 1504 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 210 | Hiffa, Nicholas (1500) | Won 2-0 | +181559 |
| 2sealed | 178 | Cullum, Mark (1608) | Lost 0-2 | -171542 |
| 3sealed | 433 | Lee, Christopher (1373) | Won 2-0 | +151557 |
| 4sealed | 403 | Looman, Dane (1507) | Lost 1-2 | -191538 |
| 5sealed | 362 | Aravidis, Milton (1618) | Lost 0-2 | -171521 |
| top | average opponent: 1521record: 2-3 | new rating: 1521 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 193 | Cox, Richard (1500) | Won 2-0 | +191499 |
| 2modern | 119 | Allen, Evan (1556) | Won 2-1 | +191518 |
| 3modern | 66 | Foshe, Chris (1527) | Won 2-1 | +181536 |
| 4modern | 61 | Riaz, Mansoor (1523) | Won 2-0 | +181554 |
| 5modern | 16 | Zhang, Peter (1644) | Lost 1-2 | -171537 |
| 6modern | 176 | Bourne, Jeff (1524) | Won 2-0 | +181555 |
| 7modern | 39 | Macedo, Ryan (1569) | Lost 0-2 | -181537 |
| 8modern | 118 | Shay, Rich (1743) | Won 2-1 | +221559 |
| 9modern | 119 | Dupal, Stephen (1582) | Lost 0-2 | -181541 |
| top | average opponent: 1574record: 6-3 | new rating: 1541 | ||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 57 | Chang, Charlie (1500) | Won 2-0 | +181518 |
| 2legacy | 139 | Ando, Dave (1289) | Lost 0-2 | -221496 |
| 3legacy | 557 | Costantini, Mark (1482) | Lost 1-2 | -181478 |
| 4legacy | 692 | Eickhoff, Jon (1445) | Lost 1-2 | -191459 |
| 5legacy | 735 | Conrow, Bernie (1518) | Won 2-1 | +191478 |
| 6legacy | 563 | Boyer, Charles (1520) | Won 2-0 | +191497 |
| 7legacy | 491 | Serignese, Paul (1579) | Lost 1-2 | -171480 |
| top | average opponent: 1476record: 3-4 | new rating: 1480 | ||