Heath, Joshua
Current rating: 1432
| Grand Prix Atlanta 2018 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 151 | Caseman, Robert (1520) | Lost 0-2 | -181466 |
| 2modern | 371 | Goldstein, Max (1599) | Lost 1-2 | -151451 |
| 3modern | 710 | Campbell, Joshua (1478) | Lost 0-2 | -181433 |
| 4modern | 709 | Wallace, Brandon (1334) | Won 2-0 | +171450 |
| 5modern | 659 | Thompson, Nathan (1500) | Lost 1-2 | -181432 |
| top | average opponent: 1486record: 1-4 | new rating: 1432 | ||
| Grand Prix Memphis 2015 (FRF standard) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 4 | Brockman, Jacob (1500) | Won 2-1 | +181502 |
| 2standard | 140 | Goode, Troy (1478) | Lost 0-2 | -181484 |
| top | average opponent: 1489record: 1-1 | new rating: 1484 | ||
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 74 | Grotheer, Chris (1500) | Lost 0-2 | -181482 |
| 2standard | 329 | Holcomb, Josh (1482) | Won 2-1 | +181500 |
| 3standard | 342 | Weingard, Daniel (1609) | Lost 0-2 | -161484 |
| 4standard | 341 | Troutt, Calvin (1483) | Won 2-0 | +181502 |
| 5standard | 322 | Trombetti, Eric (1499) | Lost 0-2 | -181484 |
| top | average opponent: 1515record: 2-3 | new rating: 1484 | ||