Tabak, Zach
Current rating: 1591
Record: 18-15
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1575 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 28 | Signorino, Elijah (1500) | Won 2-0 | +171592 |
| 2sealed | 419 | McMullan, Kegan (1562) | Won 2-1 | +181610 |
| 3sealed | 489 | Schibanoff, Justin (1662) | Won 2-1 | +181628 |
| 4sealed | 136 | Valencia, Alexander (1552) | Won 2-1 | +171645 |
| 5sealed | 41 | Velasquez Fuentes, Ranfil (1434) | Won 2-1 | +141659 |
| 6sealed | 50 | Baker, Chris (1729) | Lost 0-2 | -161643 |
| 7sealed | 2108 | Williams, David A (1959) | Lost 0-2 | -131630 |
| 8sealed | 294 | Pendleton, Jake (1554) | Lost 1-2 | -191611 |
| 9sealed | 367 | Lopez, Brian (1519) | Lost 0-2 | -201591 |
| top | average opponent: 1608record: 5-4 | new rating: 1591 | ||
| Grand Prix Milwaukee 2016 (KLD limited) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 151 | Wilkison, Jonathan (1500) | Won 2-1 | +181531 |
| 2sealed | 172 | Yang, Fanchen (1487) | Won 2-0 | +171548 |
| 3sealed | 159 | Xiong, Kobari (1541) | Lost 0-2 | -181530 |
| 4sealed | 182 | Jansen, Adam (1831) | Won 2-0 | +231553 |
| 5sealed | 155 | Beltz, James (1936) | Won 2-0 | +251578 |
| 6sealed | 114 | Churchill, Ken (1473) | Won 2-1 | +161594 |
| 7sealed | 91 | Ragsdale, Adam (1955) | Won 2-0 | +241618 |
| 8sealed | 30 | Beydler, Ben (1674) | Lost 1-2 | -171601 |
| 9sealed | 63 | Chmielewski, Joseph (1454) | Won 2-0 | +151616 |
| 10draft | 17 | Prost, Andrejs (1931) | Lost 0-2 | -121604 |
| 11draft | 17 | Shepard, Benjamin (1605) | Lost 1-2 | -181586 |
| 12draft | 17 | Markeson, Scott (2021) | Lost 1-2 | -111575 |
| top | average opponent: 1701record: 7-5 | new rating: 1575 | ||
| Grand Prix Madison 2015 (BFZ limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 206 | Lavrenz, James (1500) | Lost 1-2 | -181488 |
| 2sealed | 604 | Rodriguez, George (1420) | Won 2-0 | +171505 |
| 3sealed | 461 | Becker, Clint (1508) | Won 2-0 | +181523 |
| 4sealed | 338 | Dedrick, John (1521) | Lost 1-2 | -181505 |
| 5sealed | 485 | Haas, Zachary (1496) | Won 2-0 | +181523 |
| 6sealed | 386 | Boggemes, Kyle (2004) | Lost 0-2 | -101513 |
| top | average opponent: 1575record: 3-3 | new rating: 1513 | ||
| Grand Prix Oakland 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 196 | Ripman, Benjamin (1483) | Won 2-1 | +181518 |
| 4sealed | 208 | Brown, Nate (1509) | Lost 0-2 | -181500 |
| 5sealed | 208 | Floyd, Jacksun (1536) | Won 2-1 | +181518 |
| 6sealed | 208 | Hudson, Andrew (1612) | Won 2-0 | +201538 |
| 7sealed | 208 | Boland, Michael (1589) | Lost 1-2 | -171521 |
| 8sealed | 93 | Jacobson, Mary (1703) | Lost 1-2 | -151506 |
| top | average opponent: 1572record: 3-3 | new rating: 1506 | ||