Witting, Joshua
Current rating: 1457
Record: 3-6
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 159 | Kastel, Chad (1871) | Won 2-0 | +251471 |
| 2modern | 3 | Ortiz, Michael 9945 (1463) | Lost 1-2 | -181453 |
| 3modern | 206 | Karpovck, Andrew (1462) | Won 2-1 | +181471 |
| 4modern | 202 | Mumby, Alexander (1526) | Lost 0-2 | -171454 |
| 5modern | 266 | Solorzano, Michaelle (1618) | Won 2-0 | +211475 |
| 6modern | 156 | Sloan, Connor (1462) | Lost 0-2 | -181457 |
| average opponent: 1567record: 3-3 | new rating: 1457 | |||
| Grand Prix Orlando 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 4 | Daley, Joshua (1560) | Lost 1-2 | -171483 |
| 2standard | 73 | Turner, David (1429) | Lost 1-2 | -191464 |
| 3standard | 445 | Rhoades, Jessee (1462) | Lost 1-2 | -181446 |
| average opponent: 1484record: 0-3 | new rating: 1446 | |||