Halford, Justin
Current rating: 1639
Record: 19-11-1
| Regional Championships Atlanta 2022 (pioneer) | starting rating: 1701 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 1437 | Eiland, Tanner (1500) | Lost 0-2 | -211680 |
| 2pioneer | 1274 | Johnson, Alex (1744) | Lost 0-2 | -171663 |
| 4pioneer | 1272 | Cantergiani, Kade (1671) | Lost 0-2 | -181645 |
| 5pioneer | 1361 | Maroldi, Anthony (1473) | Won 2-0 | +151660 |
| 6pioneer | 1309 | clark, coleman (1485) | Lost 0-2 | -211639 |
| top | average opponent: 1575record: 1-4 | new rating: 1639 | ||
| Grand Prix Atlanta 2019 (legacy) | starting rating: 1666 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 35 | Jackson, Marcus (1482) | Lost 1-2 | -221644 |
| 2legacy | 281 | Benetti, Dominic (1418) | Won 2-0 | +141658 |
| 3legacy | 400 | Napoles, Dorian (1505) | Won 2-0 | +161674 |
| 4legacy | 168 | Suzuike, Fumiyasu (1674) | Lost 1-2 | -181656 |
| 5legacy | 256 | Mcdonald, William (1501) | Won 2-0 | +151671 |
| 6legacy | 294 | Beard, Shane (1477) | Won 2-0 | +141685 |
| 7legacy | 109 | Young, Jacob (1569) | Won 2-0 | +161701 |
| 8legacy | 96 | Cesari, Paolo (1895) | Won 2-0 | +221723 |
| 9legacy | 49 | Simon, Eric (1559) | Lost 0-2 | -211702 |
| 10legacy | 84 | King, Kevin (1651) | Won 2-0 | +171719 |
| 11legacy | 78 | Chang, Brandon (1742) | Lost 0-2 | -181701 |
| top | average opponent: 1588record: 7-4 | new rating: 1701 | ||
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 342 | Heath, Eric (1500) | Won 2-0 | +181518 |
| 2modern | 253 | Webb, Zachary (1657) | Won 2-0 | +211539 |
| 3modern | 167 | Hernandez, Juan (1510) | Won 2-1 | +171556 |
| 4modern | 9 | Young, Michael (1611) | Won 2-1 | +191575 |
| 5modern | 7 | Amaro, Luis (1648) | Won 2-1 | +191594 |
| 6modern | 30 | Coffey, Roger (1605) | Lost 0-2 | -171577 |
| 7modern | 68 | Fox, David (1511) | Won 2-1 | +161593 |
| 8modern | 29 | Lowry, William (1714) | Won 2-0 | +211614 |
| 9modern | 8 | Nicholas, Gabriel (1750) | Won 2-0 | +201634 |
| 10modern | 14 | Humphries, Mickey (1859) | Lost 0-2 | -141620 |
| 11modern | 36 | Till, Cory (1693) | Lost 0-2 | -171603 |
| 12modern | 46 | Minard, Darin (1882) | Draw 1-1 | +51608 |
| 13modern | 46 | Finn, Maverick (1590) | Won 2-1 | +181626 |
| 14modern | 31 | Barrera, Alexander (1776) | Won 2-0 | +211647 |
| 15modern | 21 | Mosteller, Bennett (1699) | Won 2-1 | +191666 |
| top | average opponent: 1667record: 11-3-1 | new rating: 1666 | ||