Weltback, Jonathan
Current rating: 1503
Record: 4-4
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 645 | Luigi, Gisam (1539) | Won 2-0 | +191519 |
| 2sealed | 793 | Johnson, Jeff (1507) | Lost 1-2 | -191500 |
| 3sealed | 920 | Ernstam, Jason (1499) | Won 2-0 | +181518 |
| 4sealed | 800 | DeCoeur, David (1519) | Lost 1-2 | -181500 |
| 5sealed | 1000 | Williams, Bryan (1443) | Won 2-1 | +171517 |
| 6sealed | 764 | Snyder, Joshua (1534) | Won 2-0 | +191536 |
| 7sealed | 737 | Kostner, Kelly (1567) | Lost 0-2 | -181518 |
| 8sealed | 858 | Hicks, Steven (1683) | Lost 0-2 | -151503 |
| average opponent: 1536record: 4-4 | new rating: 1503 | |||