Clark, Zac
Current rating: 1509
Record: 47-57
Grand Prix Philadelphia 2000Grand Prix Philadelphia 2012Grand Prix Lisbon 2012Grand Prix Atlantic City 2013Grand Prix Las Vegas 2013Grand Prix Washington DC 2013Grand Prix Richmond 2014Grand Prix Philadelphia 2014Grand Prix Orlando 2014Grand Prix New Jersey 2014Grand Prix Atlantic City 2015Grand Prix New York 2016Grand Prix Chiba 2016Grand Prix New Jersey 2019
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1459 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 213 | Mohan, Prannoy (1500) | Won 2-0 | +181477 |
| 2sealed | 251 | Rodgers, Ronald (1469) | Won 2-1 | +181495 |
| 3sealed | 135 | Cerbone, Alex (1521) | Won 2-1 | +191514 |
| 4sealed | 163 | Van Vaals, Michael (1895) | Lost 0-2 | -121502 |
| 5sealed | 116 | Caudle, Clinton (1710) | Lost 0-2 | -141488 |
| 6sealed | 421 | Cutaiar, Adam (1511) | Won 2-0 | +181506 |
| 7sealed | 239 | Larratta, Leonard (1561) | Won 2-0 | +191525 |
| 8sealed | 104 | Finnerty, Sean (1658) | Won 2-1 | +211546 |
| 9sealed | 132 | MacDonald, Dan (1777) | Lost 0-2 | -141532 |
| 10draft | 90 | Fulgium, James (1767) | Lost 0-2 | -141518 |
| 11draft | 107 | Evaldi, Mark (1757) | Won 2-1 | +221540 |
| 12draft | 58 | Dai, Simon (1648) | Lost 0-2 | -161524 |
| 13draft | 128 | Honkonen, Charles (1645) | Lost 1-2 | -151509 |
| top | average opponent: 1648record: 7-6 | new rating: 1509 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 64 | Matoba, Keisuke (1469) | Lost 1-2 | -171397 |
| 2legacy | 610 | Miyazaki, Takahiro (1480) | Won 2-0 | +201417 |
| 3legacy | 633 | Takamatsu, Hiroomi (1439) | Won 2-1 | +181435 |
| 4legacy | 402 | Tanji, Kensuke (1578) | Lost 1-2 | -151420 |
| 5legacy | 773 | Utsumi, Hironobu (1427) | Won 2-1 | +181438 |
| 6legacy | 393 | Morinaga, Yousuke (1727) | Won 2-0 | +231461 |
| 7legacy | 469 | Cheng, Nicholas (1574) | Won 2-0 | +201481 |
| 8legacy | 169 | Yasooka, Shota (2170) | Lost 0-2 | -71474 |
| 9legacy | 308 | Takahashi, Daiki (1623) | Lost 0-2 | -151459 |
| top | average opponent: 1610record: 5-4 | new rating: 1459 | ||
| Grand Prix New York 2016 (SOI standard) | starting rating: 1410 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 242 | Delcourt, Zachary (1428) | Won 2-1 | +181428 |
| 4standard | 12 | Hicks, Steven (1726) | Lost 0-2 | -131415 |
| 5standard | 170 | Ward, Daniel (1851) | Lost 0-2 | -101405 |
| 6standard | 523 | Victory, Robert (1868) | Won 2-1 | +261431 |
| 7standard | 387 | Morris, Shayne (1511) | Won 2-1 | +191450 |
| 8standard | 176 | Pendleton, Derek (1497) | Lost 1-2 | -171433 |
| 9standard | 322 | Baker, Steve (1381) | Lost 1-2 | -191414 |
| top | average opponent: 1609record: 3-4 | new rating: 1414 | ||
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1329 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 66 | Soderquist, Chris (1536) | Won 2-1 | +221351 |
| 4sealed | 128 | Leung, Andy (1555) | Won 2-1 | +211372 |
| 5sealed | 43 | Sardinas, Oscar (1668) | Lost 0-2 | -121360 |
| 6sealed | 188 | Cutrone, Michael (1686) | Won 2-0 | +231383 |
| 7sealed | 79 | Sterner, Edward (1642) | Won 2-1 | +231406 |
| 8sealed | 70 | Vitullo, Joshua (1691) | Won 2-0 | +231429 |
| 9sealed | 17 | Burkhart, Corey (1859) | Lost 0-2 | -111418 |
| 10draft | 74 | Barnett, Tyler (1690) | Lost 0-2 | -131405 |
| 11draft | 6 | Sigrist, Mike (1914) | Lost 0-2 | -91396 |
| 12draft | 38 | Duncan, Zachary (1735) | Lost 0-2 | -121384 |
| 13draft | 23 | Barkon, Daniel (1501) | Lost 0-2 | -161368 |
| 14draft | 92 | Edelman, Douglas (1589) | Won 2-0 | +221390 |
| 15draft | 23 | Garner, Elliot (1503) | Won 2-0 | +201410 |
| top | average opponent: 1659record: 7-6 | new rating: 1410 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1389 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 277 | Gorman, Brian (1562) | Lost 0-2 | -151374 |
| 4legacy | 331 | McCarthy, John (1611) | Lost 1-2 | -131361 |
| 5legacy | 333 | Coleson, Brandon (1466) | Lost 0-2 | -171344 |
| 6legacy | 428 | Wright, William H (1480) | Lost 0-2 | -151329 |
| top | average opponent: 1530record: 0-4 | new rating: 1329 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 966 | Heck, Robby (1500) | Lost 0-2 | -171437 |
| 2sealed | 1239 | Ludlam, Dwayne (1500) | Lost 0-2 | -171420 |
| 3sealed | 195 | Webb, Mark (1618) | Lost 0-2 | -141406 |
| 4sealed | 148 | German, Jason (1480) | Lost 0-0 | -171389 |
| top | average opponent: 1525record: 0-4 | new rating: 1389 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 244 | deBorja, Peter (1482) | Lost 1-2 | -181446 |
| 3sealed | 579 | Lay, Vincent (1576) | Won 2-0 | +211467 |
| 4sealed | 292 | Blake, Bryan (1470) | Lost 1-2 | -181449 |
| 5sealed | 561 | Hartbarger, Lance (1745) | Won 2-0 | +231472 |
| 6sealed | 443 | Li, Chen 8537 (1495) | Lost 0-2 | -181454 |
| top | average opponent: 1554record: 2-3 | new rating: 1454 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 183 | Buckman, Ty (1517) | Lost 0-2 | -171441 |
| 3modern | 242 | Meneses, Justin (1455) | Lost 1-2 | -181423 |
| 4modern | 401 | Helfer, Zachary (1482) | Won 2-0 | +191442 |
| 5modern | 411 | Chaudhry, Shann (1483) | Lost 1-2 | -171425 |
| 6modern | 357 | Blechman, Phil (1470) | Won 2-0 | +191444 |
| 7modern | 245 | Crump, Eric (1500) | Won 2-0 | +191463 |
| 8modern | 203 | Blackmor, Jason (1516) | Lost 1-2 | -171446 |
| 9modern | 179 | Powell, Adam (1455) | Won 2-1 | +181464 |
| top | average opponent: 1485record: 4-4 | new rating: 1464 | ||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 310 | Vicars, Mark A (1475) | Lost 0-2 | -181453 |
| 4legacy | 388 | Mitchell, Greg 4210 (1568) | Won 2-1 | +201473 |
| 5legacy | 557 | Martin, Michael (1443) | Lost 1-2 | -191454 |
| 6legacy | 317 | Henderson, James (1582) | Won 2-1 | +211475 |
| 7legacy | 339 | Ramirez, Gabriel (1582) | Lost 1-2 | -161459 |
| 8legacy | 217 | Krafft, Adam (1484) | Lost 0-2 | -181441 |
| 9legacy | 250 | Drew, Edward (1367) | Won 2-0 | +171458 |
| top | average opponent: 1500record: 3-4 | new rating: 1458 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 609 | Bolen, Eddie (1500) | Lost 1-2 | -181485 |
| 5sealed | 551 | McAtee, Brian (1637) | Lost 1-2 | -151470 |
| 6sealed | 544 | Upshaw, Kayla (1472) | Won 2-0 | +181488 |
| 7sealed | 467 | Gill, Alden (1536) | Lost 0-2 | -171471 |
| top | average opponent: 1536record: 1-3 | new rating: 1471 | ||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 279 | Snyder, Eric (1647) | Lost 0-2 | -161545 |
| 4standard | 379 | Frier, Dov (1507) | Won 2-1 | +171562 |
| 5standard | 200 | Byrne, Tyler (1472) | Lost 1-2 | -201542 |
| 6standard | 327 | Hawron, Richard (1471) | Lost 1-2 | -191523 |
| 7standard | 439 | Houston, James (1500) | Won 2-0 | +181541 |
| 8standard | 313 | Agress, Danielle (1480) | Lost 1-2 | -201521 |
| 9standard | 294 | Raju, Neil (1503) | Lost 0-2 | -181503 |
| top | average opponent: 1511record: 2-5 | new rating: 1503 | ||
| Grand Prix Lisbon 2012 (RTR limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 92 | Bizarro, Pedro (1518) | Lost 0-2 | -191543 |
| 3sealed | 174 | Moraes, Pedro (1503) | Won 2-1 | +181561 |
| 4sealed | 157 | Lemos, Jose (1540) | Lost 1-2 | -191542 |
| 5sealed | 244 | Lange, Holger (1693) | Won 2-0 | +211563 |
| 6sealed | 112 | Flips, Lionel (1465) | Won 2-1 | +161579 |
| 7sealed | 81 | Zemp, Dominic (1604) | Won 2-0 | +191598 |
| 8sealed | 80 | Araujo, Miguel (1593) | Lost 0-2 | -181580 |
| 9sealed | 83 | Martinez Querol, Daniel (1544) | Lost 1-2 | -191561 |
| top | average opponent: 1558record: 4-4 | new rating: 1561 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 620 | Meggs, Andrew (1500) | Won 0-0 | +181518 |
| 2sealed | 553 | Krumb, Michael (1861) | Lost 0-2 | -121506 |
| 3sealed | 833 | Chimel, Will D (1499) | Won 2-1 | +181524 |
| 4sealed | 757 | Bertone, Christopher (1578) | Won 2-0 | +191543 |
| 5sealed | 618 | Stratton, Erik (1536) | Lost 0-2 | -181525 |
| 6sealed | 684 | Toscanini, Eddie (1517) | Won 2-1 | +181543 |
| 7sealed | 643 | Glass, Matt (1541) | Won 2-1 | +181561 |
| 8sealed | 624 | Austin, David (1589) | Lost 0-2 | -181543 |
| 9sealed | 599 | Marchand, Richard (1594) | Won 2-0 | +191562 |
| top | average opponent: 1580record: 6-3 | new rating: 1562 | ||
| Grand Prix Philadelphia 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 59 | Rudermam, Jim (1500) | Won 0-0 | +181518 |
| 2extended | 36 | Wolf, Andrew (1534) | Lost 0-0 | -181500 |
| 3extended | 131 | Greenbaum, Micah (1500) | Won 0-0 | +181518 |
| 4extended | 89 | Tsao, Dennis (1517) | Won 0-0 | +181536 |
| 5extended | 52 | Gemmill, Benjamin (1536) | Lost 0-0 | -181518 |
| 6extended | 97 | Heishman, Curtis (1520) | Lost 0-0 | -181500 |
| top | average opponent: 1518record: 3-3 | new rating: 1500 | ||