Hadayia, John
Current rating: 1568
| Grand Prix Hartford 2018 (modern) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 20 | Koziol, Joshua (1445) | Draw 1-1 | -21556 |
| 2modern | 420 | Frank, Michael (1445) | Won 2-1 | +161572 |
| 3modern | 392 | Scannell, Kevin (1454) | Won 2-0 | +161588 |
| 4modern | 202 | Fields, Harrison (1468) | Lost 1-2 | -211567 |
| 5modern | 398 | Menz, Andrew (1518) | Lost 0-2 | -181549 |
| 6modern | 537 | Dion, Marc-Antoine (1693) | Lost 1-2 | -161533 |
| 7modern | 519 | Moore, Logan (1517) | Won 2-0 | +181551 |
| 8modern | 394 | Brousseau, John (1503) | Won 2-1 | +171568 |
| top | average opponent: 1505record: 4-3-1 | new rating: 1568 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 28 | Karkman, Ray (1500) | Won 2-0 | +181521 |
| 2modern | 261 | Dolata, Krzysztof (1524) | Lost 1-2 | -181503 |
| 3modern | 349 | Hevenor, Brock (1501) | Won 2-0 | +181521 |
| 4modern | 344 | Finch, Hunter (1523) | Won 2-0 | +181539 |
| 5modern | 135 | Pelletier, Chris (1619) | Won 2-1 | +191558 |
| 6modern | 55 | Cortez, Paulo Ricardo (1721) | Lost 0-2 | -151543 |
| 7modern | 109 | Kirsch, Geoffrey (1536) | Won 2-0 | +181561 |
| 8modern | 109 | Lussier, Griffin (1489) | Lost 1-2 | -191542 |
| 9modern | 144 | Tario, Nick (1431) | Won 2-0 | +161558 |
| top | average opponent: 1538record: 6-3 | new rating: 1558 | ||
| Grand Prix Providence 2011 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 553 | Eells, Eve Marie (1500) | Draw 1-1 | 01500 |
| 2legacy | 536 | Croan, Thomas C (1501) | Lost 0-1 | -181482 |
| 3legacy | 605 | Olson, Kenneth (1481) | Won 2-0 | +181500 |
| 4legacy | 586 | Joslin, Scott P (1499) | Lost 1-2 | -181482 |
| 5legacy | 621 | Souto, Mike (1484) | Won 2-0 | +181500 |
| 6legacy | 577 | Camidge, Bryan L (1504) | Won 2-0 | +181518 |
| 7legacy | 538 | Doolittle, Lawrence (1669) | Lost 1-2 | -151503 |
| top | average opponent: 1520record: 3-3-1 | new rating: 1503 | ||