Anderson, Joshua 268
Current rating: 1446
Record: 4-7-1
| Grand Prix Oklahoma City 2019 (ELD standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 55 | Till, Cory (1746) | Lost 1-2 | -131468 |
| 2standard | 126 | Bretthorst, Robert (1331) | Won 2-0 | +161484 |
| 3standard | 94 | WYLIE, TREY (1504) | Lost 0-2 | -181466 |
| 4standard | 120 | Carlson, Eric (1363) | Lost 1-2 | -201446 |
| top | average opponent: 1486record: 1-3 | new rating: 1446 | ||
| Grand Prix Madison 2019 (WAR limited) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 177 | Zhou, Deyu (1500) | Draw 1-1 | +11479 |
| 2sealed | 220 | Rockweit, Anthony (1620) | Won 2-1 | +201499 |
| 3sealed | 225 | Perkins, Raymond (1502) | Lost 1-2 | -181481 |
| top | average opponent: 1541record: 1-1-1 | new rating: 1481 | ||
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 6 | Rodriguez, Jesus (1376) | Won 2-0 | +161516 |
| 2modern | 61 | Navarro, Michael (1492) | Won 2-0 | +171533 |
| 3modern | 82 | Anderson, Jonathon (1519) | Lost 1-2 | -181515 |
| 4modern | 666 | Wilson, Nick (1481) | Lost 0-2 | -191496 |
| 5modern | 675 | Walker, Luke (1496) | Lost 1-2 | -181478 |
| top | average opponent: 1473record: 2-3 | new rating: 1478 | ||