Herrera, Zachary
Current rating: 1789 (#2494)
Record: 58-37-1
| Grand Prix Minneapolis 2019 (modern) | starting rating: 1740 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 184 | Tan, Edgar (1751) | Won 2-0 | +181758 |
| 2modern | 177 | Draper, Braden (1567) | Won 2-0 | +151773 |
| 3modern | 51 | Woldeyesus, Michael (1512) | Won 2-0 | +131786 |
| 4modern | 95 | Wilson, Tim S (1816) | Lost 1-2 | -181768 |
| 5modern | 160 | Kumar-Montei, Matthew (1535) | Won 2-1 | +141782 |
| 6modern | 97 | Magnuson, Max (1849) | Lost 1-2 | -161766 |
| 7modern | 137 | Alley, Dean (1608) | Won 2-1 | +151781 |
| 8modern | 71 | Ebeling, Evan (1554) | Won 2-0 | +141795 |
| 9modern | 59 | Krussow, Brandon (1681) | Lost 1-2 | -201775 |
| 10modern | 66 | Engen, Caleb (1562) | Won 2-0 | +141789 |
| 11modern | 38 | Lentsch, Zachary (1619) | Lost 1-2 | -211768 |
| 12modern | 70 | Bechtold, Sam (1565) | Won 2-0 | +141782 |
| 13modern | 42 | Purdum, Scott (1553) | Won 2-0 | +141796 |
| 14modern | 49 | Gasior, Isaac (1630) | Won 2-0 | +151811 |
| 15modern | 32 | Van Zee, Govert (1613) | Lost 1-2 | -221789 |
| top | average opponent: 1628record: 10-5 | new rating: 1789 | ||
| Grand Prix Milwaukee 2018 (GRN standard) | starting rating: 1733 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 78 | Levy, Alec (1518) | Won 2-0 | +141747 |
| 3standard | 71 | Russell, Tania (1690) | Won 2-0 | +171764 |
| 4standard | 57 | Weitz, Benjamin (1956) | Lost 1-2 | -151749 |
| 5standard | 253 | Overton, Pierce (1496) | Won 2-1 | +141763 |
| 6standard | 167 | Novak, Tyler (1662) | Lost 1-2 | -201743 |
| 7standard | 188 | Bhanot, Meru (1719) | Won 2-1 | +171760 |
| 8standard | 152 | Bohnhoff, Benjamin (1624) | Lost 1-2 | -201740 |
| top | average opponent: 1666record: 4-3 | new rating: 1740 | ||
| Grand Prix Minneapolis 2018 (M19 limited) | starting rating: 1747 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 64 | Hardekopf, Caleb (1698) | Won 2-0 | +171764 |
| 3sealed | 297 | Drollinger, Christian (1541) | Lost 0-2 | -221742 |
| 4sealed | 293 | Jones, Ben (1699) | Won 2-1 | +171759 |
| 5sealed | 249 | Haas, Zachary (1515) | Lost 1-2 | -221737 |
| 6sealed | 274 | Linabury, Simon (1593) | Won 2-1 | +151752 |
| 7sealed | 269 | Glass, Campbell (1645) | Lost 1-2 | -191733 |
| top | average opponent: 1615record: 3-3 | new rating: 1733 | ||
| Grand Prix Minneapolis 2017 (HOU standard) | starting rating: 1676 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 28 | Hernandez, David (1501) | Won 2-0 | +141690 |
| 2standard | 101 | Smith, Justin (1489) | Won 2-0 | +151705 |
| 3standard | 26 | Troiano, Francesco (1684) | Won 2-1 | +171722 |
| 4standard | 5 | Dobbin, Jack (1979) | Won 2-0 | +231745 |
| 5standard | 9 | Blanchet, Eric (1649) | Won 2-1 | +161761 |
| 6standard | 13 | Sikkink Johnson, Matt (1822) | Lost 1-2 | -171744 |
| 7standard | 19 | Strand, Clinton (1541) | Lost 1-2 | -211723 |
| 8standard | 110 | Rekow, Michael (1722) | Lost 1-2 | -181705 |
| 9standard | 131 | O'Malley, Ryan (1518) | Won 2-1 | +141719 |
| 10standard | 561 | Berrios, Stephen (1845) | Won 2-0 | +211740 |
| 11standard | 564 | Elenbogen, Andrew (1825) | Lost 1-2 | -171723 |
| 12standard | 537 | Finton, Trevor (1505) | Won 2-0 | +141737 |
| 13standard | 551 | Rivera, Emanuel (1574) | Won 2-0 | +151752 |
| 14standard | 524 | Mickle, Sam (1602) | Won 2-1 | +161768 |
| 15standard | 498 | Kotecki, Quinn (1635) | Lost 1-2 | -211747 |
| top | average opponent: 1659record: 10-5 | new rating: 1747 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1589 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 379 | Hoobler, Kevin (1429) | Won 2-0 | +151604 |
| 2sealed | 464 | Caron, Marc-Olivier (1476) | Lost 0-2 | -201584 |
| 3sealed | 884 | Solano, Jesus (1738) | Lost 1-2 | -151569 |
| 4sealed | 903 | Felger, Scott (1479) | Won 2-0 | +161585 |
| 5sealed | 771 | Swanson, Erik (1745) | Won 2-0 | +211606 |
| 6sealed | 481 | Heath, Joel (1477) | Won 2-0 | +161622 |
| 7sealed | 484 | Orozco, Troy (1576) | Won 2-1 | +171639 |
| 8sealed | 282 | Yeem, Soohwang (2031) | Won 2-0 | +251664 |
| 9sealed | 153 | Lassen, Nicholas (1676) | Won 2-0 | +181682 |
| 10draft | 36 | Smolen, Matthew (1568) | Won 2-1 | +161698 |
| 11draft | 153 | Kovacs, Gabor 6212 (1685) | Lost 1-2 | -181680 |
| 12draft | 184 | Rigatti, Jonathan (1548) | Won 2-1 | +151695 |
| 13draft | 184 | MacLeod, Joshua (1612) | Lost 0-2 | -191676 |
| 14draft | 71 | Dompierre, Luc (1692) | Lost 1-2 | -181658 |
| 15draft | 137 | O'Donnell, Drew (1627) | Won 2-1 | +181676 |
| top | average opponent: 1624record: 10-5 | new rating: 1676 | ||
| Grand Prix Milwaukee 2016 (KLD limited) | starting rating: 1574 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 216 | Carpenter, Tim (1507) | Won 2-1 | +171591 |
| 2sealed | 22 | Brakefield, Konstantin (1711) | Won 2-1 | +201611 |
| 3sealed | 150 | Shukla, Neeraj (1614) | Won 2-1 | +181629 |
| 4sealed | 133 | Feng, Michael (1636) | Won 2-0 | +181647 |
| 5sealed | 45 | Hinchley, Joshua (1556) | Lost 1-2 | -191628 |
| 6sealed | 116 | Wells, John W (1696) | Lost 0-2 | -171611 |
| 7sealed | 203 | Williams, Justin (1542) | Won 2-0 | +171628 |
| 8sealed | 141 | Ballard, Jason (1553) | Lost 1-2 | -201608 |
| 9sealed | 231 | McLeskey, Kevin (1562) | Lost 1-2 | -191589 |
| top | average opponent: 1597record: 5-4 | new rating: 1589 | ||
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1566 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 98 | Glendernig, Dylan (1500) | Won 2-1 | +171583 |
| 2modern | 325 | Lin, David (1781) | Lost 0-2 | -151568 |
| 3modern | 626 | Green, Adam (1472) | Won 2-0 | +161584 |
| 4modern | 358 | Fulks, Franklin (1549) | Lost 1-2 | -181566 |
| 5modern | 505 | Cochran, Rufus (1341) | Won 2-0 | +141580 |
| 6modern | 511 | Varner, Adam (1505) | Lost 0-2 | -201560 |
| 7modern | 644 | Stewart, Benjamin (1468) | Lost 1-2 | -191541 |
| 8modern | 601 | Salgado, Brandon (1405) | Won 2-0 | +151556 |
| 9modern | 472 | Melanson, Chris (1543) | Won 2-0 | +181574 |
| top | average opponent: 1507record: 5-4 | new rating: 1574 | ||
| Grand Prix Minneapolis 2016 (SOI standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 94 | Hobbs, Sean (1587) | Draw 1-1 | +21487 |
| 2standard | 356 | Chartrand, Tyler (1466) | Lost 0-2 | -191468 |
| 3standard | 603 | Lind, Ben (1482) | Won 2-0 | +191487 |
| 4standard | 483 | Pospichal, Zachary (1499) | Won 2-0 | +181505 |
| 5standard | 322 | Loya, Jesus (1518) | Won 2-0 | +181523 |
| 6standard | 200 | Uphoff, Thomas (1579) | Lost 1-2 | -171506 |
| 7standard | 312 | Dazey, Will (1524) | Won 2-0 | +181524 |
| 8standard | 212 | Boettcher, Bradley (1537) | Won 2-0 | +191543 |
| 9standard | 151 | Lamp, Alexander (1491) | Won 2-1 | +171560 |
| 10standard | 94 | Burgener, Tim (1596) | Won 2-0 | +181578 |
| 11standard | 61 | Brumby, Gene (1850) | Lost 1-2 | -131565 |
| 12standard | 105 | Gillette, Daniel (1578) | Won 2-1 | +191584 |
| 13standard | 73 | Wolff, Meghan (1603) | Lost 0-2 | -181566 |
| top | average opponent: 1562record: 8-4-1 | new rating: 1566 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 441 | Cartier, Matthew (1555) | Won 2-1 | +191519 |
| 2modern | 542 | Loetzner, Merlin (1519) | Lost 0-2 | -181501 |
| 3modern | 776 | Kuczynski, Larry (1536) | Lost 0-2 | -171484 |
| 4modern | 1078 | Abston, Will (1493) | Won 2-0 | +181502 |
| 5modern | 636 | Rada, George (1502) | Won 2-0 | +181520 |
| 6modern | 558 | Scherer, Caleb (1640) | Lost 0-2 | -161504 |
| 7modern | 822 | Gallagher, Peter (1448) | Lost 1-2 | -191485 |
| top | average opponent: 1527record: 3-4 | new rating: 1485 | ||