Zelder, Aaron
Current rating: 1575
Record: 10-6
| Grand Prix Portland 2018 (modern) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 207 | Paez, Jonathan (1514) | Won 2-1 | +171557 |
| 2modern | 63 | Turner, Bobby (1481) | Won 2-1 | +171574 |
| 3modern | 330 | Paulino, Davi (1556) | Won 2-0 | +171591 |
| 4modern | 139 | Sanford, Ryan (1508) | Won 2-0 | +171608 |
| 5modern | 24 | Straub, Devon (1616) | Lost 1-2 | -181590 |
| 6modern | 91 | Barnes, Michael (1694) | Lost 1-2 | -161574 |
| 7modern | 223 | Cahalan, Liam (1638) | Lost 0-2 | -171557 |
| 8modern | 269 | Rosario, Edgar (1566) | Won 2-0 | +181575 |
| average opponent: 1572record: 5-3 | new rating: 1575 | |||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 181 | Cloer, Daniel (1500) | Won 2-0 | +181518 |
| 2modern | 188 | Vogelgesang, Clayton (1517) | Lost 1-2 | -181500 |
| 3modern | 357 | Chatham, Benjamin (1571) | Won 2-0 | +191519 |
| 4modern | 264 | Pickens, Adam (1436) | Won 2-0 | +171536 |
| 5modern | 331 | Padilla, Pedro (1479) | Lost 1-2 | -191517 |
| 6modern | 259 | Beasley, Shanice (1563) | Won 2-1 | +191536 |
| 7modern | 193 | Comer, Ethan (1547) | Won 2-0 | +181554 |
| 8modern | 190 | Smith, Jimmie (1768) | Lost 1-2 | -141540 |
| average opponent: 1548record: 5-3 | new rating: 1540 | |||