Shiro, Zack
Current rating: 1572
Record: 20-17
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 63 | Ford, Alexander (1520) | Won 2-1 | +171595 |
| 3sealed | 201 | Crow, Rosie (1536) | Lost 0-2 | -191576 |
| 4sealed | 215 | Duffy-Ledbetter, Lee (1517) | Lost 0-2 | -191557 |
| 5sealed | 313 | Alvarenga, Gustavo (1498) | Won 2-1 | +171574 |
| 6sealed | 290 | Cracraft, Justen (1517) | Won 2-1 | +171591 |
| 7sealed | 198 | Samdahl, Talon (1534) | Lost 1-2 | -191572 |
| top | average opponent: 1520record: 3-3 | new rating: 1572 | ||
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 416 | Sedlak, Jon (1542) | Won 2-0 | +181560 |
| 3sealed | 118 | Dymerski, Matt (1535) | Won 2-0 | +171577 |
| 4sealed | 141 | Thornton, Christopher (1589) | Lost 1-2 | -171560 |
| 5sealed | 196 | Davis, Randy (1810) | Lost 0-2 | -141546 |
| 6sealed | 435 | Saunders, Andrew (1506) | Lost 1-2 | -191527 |
| 7sealed | 426 | Filimonow, Jamie (1422) | Won 2-0 | +161543 |
| 8sealed | 307 | George, Sebastian (1535) | Won 2-1 | +181561 |
| 9sealed | 200 | Li, Chen 2674 (1499) | Won 2-0 | +171578 |
| top | average opponent: 1555record: 5-3 | new rating: 1578 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 74 | English, Eric (1729) | Lost 0-2 | -151557 |
| 4sealed | 302 | Carlin, Matthew (1372) | Won 2-1 | +151572 |
| 5sealed | 193 | Fennell, Christopher (2035) | Lost 0-2 | -111561 |
| 6sealed | 280 | Saez, Juan (1621) | Won 2-0 | +191580 |
| 7sealed | 240 | Zyla, Sarah (1479) | Lost 1-2 | -191561 |
| 8sealed | 223 | Speer, Jamie (1513) | Lost 0-2 | -191542 |
| top | average opponent: 1625record: 2-4 | new rating: 1542 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 692 | Deputy, C.J. (1475) | Won 2-0 | +181518 |
| 2sealed | 963 | Mcnamee, Jason (1518) | Won 2-1 | +181536 |
| 3sealed | 763 | Bene, Stephen (1564) | Won 2-1 | +181554 |
| 4sealed | 776 | Kelley, Shane (1570) | Lost 1-2 | -181536 |
| 5sealed | 802 | Baldwin, Wally (1514) | Won 2-1 | +181554 |
| 6sealed | 766 | Fulks, Tom (1540) | Won 2-1 | +181572 |
| 7sealed | 763 | Burklow, Taylor (1521) | Won 2-0 | +171589 |
| 8sealed | 327 | Herron, Christopher (1589) | Won 2-1 | +181607 |
| 9sealed | 309 | Michael, Kevin (1868) | Lost 1-2 | -141593 |
| 10sealed | 120 | Flora, Dustin (1671) | Won 2-1 | +201613 |
| 11sealed | 72 | Oppenheimer, Jason (1567) | Lost 1-2 | -191594 |
| 12draft | 29 | Adams, Ken (1790) | Lost 1-2 | -141580 |
| 13draft | 52 | Hazzard, Wes B (1577) | Won 2-0 | +171597 |
| 14draft | 39 | Tseng, Yen-Shyang (1548) | Won 2-1 | +181615 |
| 15draft | 53 | Cordell, Robbie (1908) | Lost 0-2 | -131602 |
| 16draft | 14 | Beasley, Orrin (1775) | Lost 1-2 | -151587 |
| 17draft | 15 | Braun-Duin, Brian (1758) | Lost 0-2 | -151572 |
| top | average opponent: 1632record: 10-7 | new rating: 1572 | ||