Weaver, Zachary
Current rating: 1518
Record: 8-7
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 55 | Arlinghaus, Konnor (1500) | Won 2-1 | +181517 |
| 2sealed | 443 | Tarnowski, Benjamin (1536) | Lost 1-2 | -171500 |
| 3sealed | 587 | Shrake, David (1575) | Won 2-1 | +191519 |
| 4sealed | 603 | Bell, Preston (1526) | Lost 1-2 | -181501 |
| 5sealed | 516 | Sheffield, Davey (1466) | Won 2-0 | +181519 |
| 6sealed | 346 | Cohen, Scott (1575) | Won 2-0 | +191538 |
| 7sealed | 233 | Labny, Ross (1545) | Won 2-1 | +181556 |
| 8sealed | 112 | Rodriguez, George (1458) | Lost 1-2 | -201536 |
| 9sealed | 241 | Raval, Mahendra (1538) | Lost 0-2 | -181518 |
| average opponent: 1524record: 5-4 | new rating: 1518 | |||
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 362 | Lies, William (1555) | Won 2-0 | +191519 |
| 2modern | 1027 | Pound, David (1491) | Lost 1-2 | -191500 |
| 3modern | 408 | McInerney, Timothy (1428) | Lost 0-0 | -191481 |
| 4modern | 496 | Ravajy, Alexander (1481) | Won 2-1 | +181499 |
| 5modern | 450 | McClintock, Alexander (1503) | Won 2-0 | +181517 |
| 6modern | 314 | Van, David (1528) | Lost 0-2 | -181499 |
| average opponent: 1498record: 3-3 | new rating: 1499 | |||