Ziskis, Mark
Current rating: 1584
Record: 36-33-2
| Grand Prix Charlotte 2016 (modern) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 220 | Shifflett, Aaron (1596) | Won 2-1 | +191526 |
| 3modern | 417 | Day, Taylor (1547) | Won 2-0 | +191545 |
| 4modern | 569 | Cesari, Paolo (1896) | Won 2-0 | +241569 |
| 5modern | 25 | Mann, Stephen (1805) | Won 2-0 | +221591 |
| 6modern | 45 | Hubbard, Richard (1487) | Won 2-0 | +161607 |
| 7modern | 28 | Seipp, Brian (1681) | Lost 1-2 | -161591 |
| 8modern | 53 | Jeffries, Adrew (1618) | Won 2-1 | +181609 |
| 9modern | 68 | Roy, Marc (1555) | Won 2-0 | +171626 |
| 10modern | 34 | Smith, Evan (1785) | Won 2-1 | +211647 |
| 11modern | 4 | Freemon, Wallace (1760) | Lost 1-2 | -161631 |
| 12modern | 55 | Shea, Michael (1754) | Lost 1-2 | -161615 |
| 13modern | 97 | Huang, Bob (1888) | Lost 0-2 | -131602 |
| 14modern | 109 | Glover, Logan (1599) | Lost 0-2 | -181584 |
| top | average opponent: 1690record: 8-5 | new rating: 1584 | ||
| Grand Prix New York 2016 (SOI standard) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 165 | Boyd, Mike (1540) | Lost 0-2 | -181507 |
| top | record: 0-1 | new rating: 1507 | ||
| Grand Prix Providence 2015 (DTK standard) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 81 | Heveran, Charlie (1471) | Lost 1-2 | -191503 |
| 3standard | 249 | Duty, Ruben (1499) | Won 2-0 | +181521 |
| 4standard | 152 | Stair, Seth (1509) | Won 1-0 | +181539 |
| 5standard | 188 | Kulik, Lirek (1528) | Lost 1-2 | -181521 |
| 6standard | 165 | Yue, Jen (1472) | Won 2-1 | +171538 |
| 7standard | 186 | Feingersh, Rachel (1810) | Lost 1-2 | -131525 |
| top | average opponent: 1548record: 3-3 | new rating: 1525 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 839 | Everitt, Steven (1520) | Lost 0-2 | -181493 |
| 3legacy | 1207 | Lennon, Ross (1478) | Won 2-1 | +181511 |
| 4legacy | 1023 | Jette, Jonathan (1840) | Won 2-1 | +241535 |
| 5legacy | 744 | Morgan, Sean (1704) | Lost 0-2 | -151520 |
| 6legacy | 875 | Aguilera, Ryder (1671) | Won 2-0 | +211541 |
| 7legacy | 793 | Sipics, Mark (1506) | Lost 1-2 | -191522 |
| top | average opponent: 1620record: 3-3 | new rating: 1522 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 168 | Summers, Jake (1552) | Lost 0-2 | -171506 |
| 3modern | 410 | AuCoin, Ryan (1547) | Won 2-1 | +191525 |
| 4modern | 325 | Pimm, Douglas (1624) | Won 2-1 | +191544 |
| 5modern | 143 | Snow, David (1713) | Lost 0-2 | -151529 |
| 6modern | 231 | Clement, Shane (1517) | Lost 1-2 | -181511 |
| top | average opponent: 1591record: 2-3 | new rating: 1511 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 340 | Perrien, Don (1447) | Won 2-0 | +171529 |
| 2sealed | 259 | Kirklow, Joe (1519) | Lost 1-2 | -191510 |
| 3sealed | 424 | Allen, Dustin (1553) | Lost 1-2 | -171493 |
| 4sealed | 529 | Merrick, Liam (1517) | Won 2-1 | +191512 |
| 5sealed | 344 | Wakelee, Mike (1499) | Lost 1-2 | -191493 |
| 6sealed | 449 | Krulewitz, Emily (1471) | Won 2-0 | +181511 |
| 7sealed | 331 | Cevasco, Brendan (1500) | Lost 0-2 | -181493 |
| 8sealed | 275 | Schwab, Jason (1182) | Won 2-0 | +121505 |
| 9sealed | 209 | Junyszek, James (1501) | Won 2-0 | +181523 |
| top | average opponent: 1465record: 5-4 | new rating: 1523 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1589 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 302 | Speicher, Brian (1569) | Lost 1-2 | -191570 |
| 3sealed | 653 | Leu, Khoa (1483) | Lost 1-2 | -191551 |
| 4sealed | 745 | PRUTZMAN, STEPHEN (1469) | Lost 1-2 | -201531 |
| 5sealed | 697 | Hicks, Dale (1462) | Lost 0-2 | -191512 |
| top | average opponent: 1496record: 0-4 | new rating: 1512 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1427 | Oakleaf, George (1500) | Lost 1-2 | -181503 |
| 2modern | 1517 | Teague, Bradley (1482) | Won 2-0 | +171520 |
| 3modern | 1301 | Popal, Wahid (1433) | Lost 1-2 | -191501 |
| 4modern | 1586 | Trevillian, Matthew (1482) | Won 2-0 | +171518 |
| 5modern | 1387 | Reed, Jack (1534) | Won 2-1 | +191537 |
| 6modern | 1268 | Lorenzen, Brian (1505) | Won 2-1 | +171554 |
| 7modern | 1267 | Dubac, Casey (1535) | Won 2-1 | +181572 |
| 8modern | 1084 | Cantwell, Terry (1545) | Won 2-1 | +171589 |
| 9modern | 1117 | Ball, Andrew (1522) | Won 2-1 | +171606 |
| 10modern | 155 | Akpinar, Tim (1611) | Lost 0-2 | -181588 |
| 11modern | 163 | Pynn, Nick (1567) | Draw 1-1 | 01588 |
| 12modern | 180 | Liu, Helio (1552) | Won 2-1 | +171605 |
| 13modern | 135 | Walker, Matthew [USA] (1619) | Won 2-0 | +181623 |
| 14modern | 89 | Castro Mahoney, Roberto (1678) | Lost 0-2 | -171606 |
| 15modern | 122 | Taylor, Dennis (1612) | Lost 1-2 | -171589 |
| top | average opponent: 1545record: 9-5-1 | new rating: 1589 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 94 | Wolloch, Sam (1528) | Lost 1-2 | -171499 |
| 5standard | 230 | Rogover, Jordan (1536) | Won 2-0 | +181517 |
| 6standard | 95 | Terhune, Brandon (1503) | Won 2-1 | +181535 |
| 7standard | 54 | Cormier, Michael (1593) | Lost 1-2 | -171518 |
| 8standard | 90 | Thoms, James (1522) | Lost 1-2 | -181500 |
| 9standard | 156 | Jones, Oscar (1671) | Won 2-0 | +211521 |
| top | average opponent: 1559record: 3-3 | new rating: 1521 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 594 | Gong, Eric (1500) | Won 0-0 | +181518 |
| 2sealed | 655 | Wadding, Edward (1517) | Draw 1-1 | 01518 |
| 3sealed | 665 | Sager, Ben (1523) | Won 2-1 | +181536 |
| 4sealed | 628 | Briscoe, Kenneth (1539) | Won 2-1 | +181554 |
| 5sealed | 564 | Taylor, Joshua (1511) | Lost 1-2 | -191535 |
| 6sealed | 642 | Lin, Win (1481) | Lost 0-2 | -191516 |
| top | average opponent: 1512record: 3-2-1 | new rating: 1516 | ||