Hayes, Jeffery
Current rating: 1499
Record: 8-8
| Grand Prix Vancouver 2017 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2399 | Whomes, Christopher (1563) | Lost 1-2 | -171464 |
| 2modern | 2556 | Gianatassio, Dominic (1447) | Won 2-0 | +181482 |
| 3modern | 2364 | Sequeira, Sheldon (1447) | Lost 1-2 | -191463 |
| 4modern | 2674 | Carlile, Chris (1485) | Lost 1-2 | -171446 |
| 5modern | 2616 | Fukawa, Duncan (1397) | Won 2-1 | +171463 |
| 6modern | 2504 | Nguyen, Himme (1482) | Won 2-1 | +181481 |
| 7modern | 2349 | Morse, Samuel (1502) | Lost 1-2 | -181463 |
| 8modern | 2415 | Parker, Austin (1467) | Won 2-0 | +191482 |
| 9modern | 2361 | Clark, Ben (1439) | Won 2-1 | +171499 |
| average opponent: 1470record: 5-4 | new rating: 1499 | |||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 168 | Couberly, Brian (1500) | Lost 0-2 | -181482 |
| 2standard | 666 | Smit, Jacquelyn (1482) | Won 2-0 | +181500 |
| 3standard | 445 | Otteson, Ben (1404) | Lost 0-2 | -201480 |
| 4standard | 691 | Ruibal, Sam (1482) | Won 2-0 | +181498 |
| 5standard | 539 | Salazar, Justin (1502) | Lost 0-2 | -181480 |
| 6standard | 618 | Ortiz, David (1560) | Lost 0-2 | -161464 |
| 7standard | 547 | Malcolm, Liam (1399) | Won 2-0 | +171481 |
| average opponent: 1476record: 3-4 | new rating: 1481 | |||