Pentney, Zachary
Current rating: 1464
| Grand Prix Brisbane 2017 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 267 | Turner, Christopher (1556) | Lost 1-2 | -171465 |
| 2modern | 267 | Wiltshire, Scott Bradley (1414) | Won 2-0 | +171482 |
| 3modern | 223 | Simpson, Ben (1500) | Won 2-1 | +191501 |
| 4modern | 229 | Richards, Darian (1489) | Lost 1-2 | -191482 |
| 5modern | 1022 | Edmond, Stephen (1497) | Lost 1-2 | -171465 |
| 6modern | 374 | Ashford, Murray (1481) | Won 2-0 | +181483 |
| 7modern | 256 | Klose, Michael (1428) | Lost 0-2 | -191464 |
| top | average opponent: 1481record: 3-4 | new rating: 1464 | ||
| Grand Prix Sydney 2016 (EMN limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 73 | Megarrity, Angus (1444) | Lost 0-1 | -201501 |
| 2sealed | 263 | Chen, Jun (1483) | Won 2-1 | +181519 |
| 3sealed | 292 | Verrocchi, Anthony (1500) | Won 2-1 | +171536 |
| 4sealed | 318 | Mayone, Domenico (1518) | Lost 0-2 | -181518 |
| 5sealed | 310 | Spear, Troy (1464) | Lost 1-2 | -191499 |
| 6sealed | 379 | Naughton, Paul (1537) | Lost 0-2 | -171482 |
| top | average opponent: 1491record: 2-4 | new rating: 1482 | ||
| Grand Prix Melbourne 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 92 | Wisely, Lane (1500) | Won 2-1 | +181518 |
| 2modern | 39 | Holland, Brian (1534) | Won 2-1 | +181536 |
| 3modern | 61 | Lau, Dan (1555) | Lost 1-2 | -171519 |
| 4modern | 249 | Haslett, Jonathan (1517) | Won 2-1 | +181537 |
| 5modern | 104 | Miller, Mason (1540) | Lost 1-2 | -181519 |
| 6modern | 198 | Mosele, Daniel (1519) | Won 2-1 | +181537 |
| 7modern | 135 | Ryan, Ben (1516) | Won 2-0 | +171554 |
| 8modern | 80 | Wu, Kuang (1487) | Lost 1-2 | -191535 |
| 9modern | 184 | Indrakesuma, Taufik (1729) | Lost 0-2 | -141521 |
| top | average opponent: 1544record: 5-4 | new rating: 1521 | ||