Dadd, Clayton
Current rating: 1434
Record: 14-18-4
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 977 | Muzio, Timothy (1488) | Lost 0-2 | -181447 |
| 2modern | 1001 | Bonanni, Lisa (1457) | Lost 1-2 | -181429 |
| 3modern | 1184 | Milgate, David (1473) | Lost 0-2 | -171412 |
| 4modern | 1234 | Hershey, Jacob (1447) | Lost 0-2 | -171395 |
| 5modern | 1181 | Fox, Duncan (1425) | Won 2-0 | +181413 |
| 6modern | 1104 | Teuber, Nick (1447) | Draw 1-1 | +11414 |
| 7modern | 1018 | Peckham, Faron (1520) | Lost 1-2 | -161398 |
| 8modern | 943 | Giza, David (1400) | Won 2-0 | +181416 |
| 9modern | 891 | Kelly, Shawn (1412) | Won 1-0 | +181434 |
| top | average opponent: 1452record: 3-5-1 | new rating: 1434 | ||
| Grand Prix Quebec City 2013 (GTC standard) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 55 | Maines, Chris (1525) | Lost 1-2 | -181485 |
| 2standard | 269 | Sylvestre, Dominic (1428) | Lost 1-2 | -191466 |
| 3standard | 339 | Peng, Tao (1442) | Draw 1-1 | 01466 |
| 4standard | 369 | Turner, Joel (1446) | Lost 0-2 | -191447 |
| 5standard | 364 | Bishop, Eric (1362) | Won 2-0 | +171464 |
| 6standard | 310 | Lefebvre, Kim (1483) | Won 2-0 | +181482 |
| 7standard | 90 | Dorval, Olivier (1480) | Lost 0-2 | -181464 |
| 8standard | 237 | rathe, vincent (1467) | Lost 0-2 | -181446 |
| 9standard | 216 | Spera, Alec (1462) | Won 2-1 | +191465 |
| top | average opponent: 1455record: 3-5-1 | new rating: 1465 | ||
| Grand Prix Montreal 2011 (M12 limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 441 | Sanderson, Scott (1500) | Lost 0-2 | -181483 |
| 2sealed | 544 | Tsigounis, Thomas (1523) | Lost 0-2 | -181465 |
| 3sealed | 547 | Freel, Dan (1464) | Lost 1-2 | -181447 |
| 4sealed | 587 | Funchion, John (1446) | Won 1-0 | +181465 |
| 5sealed | 558 | Carapella, John (1462) | Won 2-0 | +181483 |
| 6sealed | 519 | Wang, Austin (1482) | Won 1-0 | +181501 |
| 7sealed | 462 | Thicke, Michael (1637) | Draw 1-1 | +31504 |
| 8sealed | 454 | Patel, Hemant (1426) | Lost 1-2 | -201484 |
| 9sealed | 445 | Durette, Jean-Francois (1515) | Won 2-1 | +191503 |
| top | average opponent: 1495record: 4-4-1 | new rating: 1503 | ||
| Grand Prix Montreal 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 200 | Jepson, Danielle (1500) | Draw 1-1 | 01500 |
| 2block | 181 | Tang, Jacky (1552) | Lost 1-2 | -171483 |
| 3block | 273 | Blouin, Philippe (1482) | Won 2-1 | +181501 |
| 4block | 234 | Moilanen, Nick N (1486) | Won 2-1 | +181519 |
| 5block | 161 | Fontaine, Yannick (1517) | Lost 1-2 | -181501 |
| 6block | 199 | B. Mailhot, Zachary (1500) | Won 2-1 | +181519 |
| 7block | 151 | Noworaj, Anna (1523) | Won 2-1 | +181537 |
| 8block | 102 | Oreta, Jeff (1539) | Lost 0-0 | -181519 |
| 9block | 94 | Miller, Bernie (1519) | Lost 0-0 | -181501 |
| top | average opponent: 1513record: 4-4-1 | new rating: 1501 | ||