Houghton, Derek
Current rating: 1493
Record: 18-20
| Grand Prix Toronto 2018 (modern) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 357 | Hauck, Kyle (1414) | Lost 0-2 | -191466 |
| 2modern | 406 | Darmouni, Olivier (1648) | Won 2-0 | +211487 |
| 3modern | 558 | Young, Bryant (1483) | Won 2-1 | +181505 |
| 4modern | 337 | Luo, Yichao (1587) | Lost 1-2 | -171488 |
| 5modern | 509 | Cook, Tyler (1404) | Won 2-1 | +171505 |
| 6modern | 474 | DAuteuil, Miguel (1598) | Won 2-1 | +191524 |
| 7modern | 291 | Burr, Joshua (1542) | Lost 1-2 | -171507 |
| 8modern | 325 | Boutin, Nathaniel (1714) | Lost 0-2 | -141493 |
| top | average opponent: 1549record: 4-4 | new rating: 1493 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 511 | Vary, Kyle (1529) | Won 2-1 | +191514 |
| 2modern | 40 | Bodoh, Connar (1537) | Won 2-0 | +181532 |
| 3modern | 438 | Feusse, Matthew (1542) | Lost 1-2 | -181514 |
| 4modern | 662 | Plewa, Sarah (1517) | Won 2-0 | +181532 |
| 5modern | 497 | Droggitis, Dustin (1728) | Lost 1-2 | -141518 |
| 6modern | 544 | Gray, Jake (1489) | Lost 0-2 | -191499 |
| 7modern | 622 | Mendoza, Matt (1705) | Lost 0-2 | -141485 |
| top | average opponent: 1578record: 3-4 | new rating: 1485 | ||
| Grand Prix Toronto 2012 (modern) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 151 | Crawford, Jonathan (1500) | Lost 1-2 | -181450 |
| 2modern | 353 | Dunseith, Jon A (1482) | Won 1-0 | +191469 |
| 3modern | 219 | MacVoy, Ryan (1500) | Won 2-1 | +181487 |
| 4modern | 178 | Chandler, David (1519) | Won 2-1 | +191506 |
| 5modern | 4 | MacCallum, Scott (1504) | Won 2-1 | +181524 |
| 6modern | 50 | Ogreenc, Greg (1622) | Won 2-0 | +201544 |
| 7modern | 54 | Brierley, Michael (1636) | Lost 1-2 | -171527 |
| 8modern | 78 | Vance, James (1616) | Lost 1-2 | -161511 |
| 9modern | 162 | McLaughlin, Morgan (1612) | Lost 0-2 | -161495 |
| top | average opponent: 1554record: 5-4 | new rating: 1495 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 505 | Morges, Ryan (1464) | Won 0-0 | +181482 |
| 2sealed | 632 | Stein, Abraham (1451) | Won 2-0 | +171499 |
| 3sealed | 519 | Polvino, Matthew (1536) | Lost 1-2 | -171482 |
| 4sealed | 639 | Patel, Hemant (1556) | Lost 0-2 | -171465 |
| 5sealed | 842 | Schick, Mike (1498) | Won 2-1 | +191484 |
| 6sealed | 667 | Reiners, Mitchell (1592) | Lost 0-2 | -161468 |
| top | average opponent: 1516record: 3-3 | new rating: 1468 | ||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 36 | Dugan, Shane M (1500) | Won 2-1 | +181498 |
| 3standard | 47 | Katz, Ben (1572) | Lost 0-2 | -161482 |
| 4standard | 316 | Kurth, Lloyd (1484) | Lost 0-2 | -181464 |
| top | average opponent: 1519record: 1-2 | new rating: 1464 | ||
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 421 | Stevens, Nick (1447) | Won 2-0 | +171517 |
| 2standard | 307 | Walz, Bruce (1472) | Lost 0-2 | -191498 |
| 3standard | 403 | Wilson, Billie (1482) | Lost 1-2 | -181480 |
| 4standard | 609 | Springer, Michael (1484) | Won 2-0 | +181498 |
| 5standard | 481 | Rehner, Bhardor (1497) | Lost 1-2 | -181480 |
| top | average opponent: 1476record: 2-3 | new rating: 1480 | ||