Parshall, William
Current rating: 1581
Record: 40-34-1
Grand Prix Richmond 2006Grand Prix Philadelphia 2012Grand Prix Richmond 2014Grand Prix Philadelphia 2014Grand Prix Baltimore 2014Grand Prix Cleveland 2015Grand Prix Pittsburgh 2015Grand Prix Columbus 2016Grand Prix Louisville 2017Grand Prix Pittsburgh 2017Grand Prix Richmond 2017Grand Prix Richmond 2018 (leg)
| Grand Prix Richmond 2018 (leg) (legacy) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 197 | Mihu, Jonathon (1622) | Won 2-1 | +181617 |
| 2legacy | 12 | Mata, Andrew (1743) | Lost 0-2 | -161601 |
| 3legacy | 324 | Burchett, Ben (1679) | Lost 0-2 | -161585 |
| 4legacy | 371 | Yatsenko, Alex (1465) | Won 2-0 | +161601 |
| 5legacy | 316 | Landry, Kurt (1503) | Lost 1-2 | -201581 |
| top | average opponent: 1602record: 2-3 | new rating: 1581 | ||
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1620 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 55 | Byrd, Jonathen (1406) | Lost 0-2 | -211599 |
| top | record: 0-1 | new rating: 1599 | ||
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1621 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 248 | Magararu, Juris (1376) | Won 2-1 | +141635 |
| 2standard | 50 | Santohir, Daniel (1557) | Lost 0-2 | -201615 |
| 3standard | 555 | Welch, Steven (1456) | Lost 1-2 | -211594 |
| 4standard | 489 | Alabiso, Aaron (1466) | Won 2-0 | +161610 |
| 5standard | 349 | Johnson, Eric5209 (1410) | Won 2-0 | +141624 |
| 6standard | 232 | Breitman, Alan (1620) | Lost 0-2 | -181606 |
| 7standard | 424 | Krick, Ben (1503) | Won 2-0 | +161622 |
| 8standard | 348 | Deshaies, Jacob (1506) | Won 2-1 | +161638 |
| 9standard | 202 | White, Drew (1642) | Lost 0-2 | -181620 |
| top | average opponent: 1504record: 5-4 | new rating: 1620 | ||
| Grand Prix Louisville 2017 (legacy) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 661 | Jackson, Brian (1534) | Won 2-1 | +191501 |
| 2legacy | 604 | Riddle, Curtis (1445) | Won 2-1 | +171518 |
| 3legacy | 344 | King, Kevin (1607) | Won 2-0 | +201538 |
| 4legacy | 471 | Das, Anuraag (1700) | Lost 0-2 | -151523 |
| 5legacy | 503 | Yarrow, Ivy (1688) | Lost 1-2 | -151508 |
| 6legacy | 654 | Branham, Andrew (1537) | Won 2-1 | +181526 |
| 7legacy | 459 | Guy, Curtis A (1582) | Won 2-1 | +191545 |
| 8legacy | 499 | Collier, Joshua (1467) | Won 2-1 | +171562 |
| 9legacy | 382 | Parker, Travis (1549) | Won 2-1 | +181580 |
| 10legacy | 1051 | Miller, Brian D (1608) | Won 2-0 | +181598 |
| 11legacy | 1015 | Goode, Josh (1616) | Lost 0-2 | -171581 |
| 12legacy | 1070 | Guess, Brian (1503) | Won 2-0 | +161597 |
| 13legacy | 1073 | Hord, Chad (1694) | Won 2-0 | +201617 |
| 14legacy | 1018 | Orange, Gregory (1872) | Lost 0-2 | -141603 |
| 15legacy | 1063 | Kaida-Yip, Ned (1576) | Won 2-0 | +181621 |
| top | average opponent: 1598record: 11-4 | new rating: 1621 | ||
| Grand Prix Columbus 2016 (legacy) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 123 | Foerst, Kerry (1600) | Lost 0-2 | -171503 |
| 2legacy | 620 | Comminos, Steven (1356) | Lost 1-2 | -211482 |
| top | average opponent: 1478record: 0-2 | new rating: 1482 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 706 | Rickert, David (1500) | Won 2-0 | +171556 |
| 2modern | 578 | Mitchell, Billy (1510) | Lost 1-2 | -191537 |
| 3modern | 739 | Tussing, Austin (1467) | Won 2-0 | +171554 |
| 4modern | 633 | Abrahams, Rafi (1693) | Lost 0-2 | -151539 |
| 5modern | 986 | Abdallah, Joseph (1480) | Lost 1-2 | -191520 |
| top | average opponent: 1530record: 2-3 | new rating: 1520 | ||
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1579 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 365 | Rumski, Zac (1612) | Won 2-1 | +181597 |
| 2sealed | 83 | Seed, Huckleberry (1517) | Lost 0-2 | -191578 |
| 3sealed | 569 | Lowry, Ian (1500) | Lost 1-2 | -201558 |
| 4sealed | 625 | Griffin, Ellis (1486) | Lost 0-2 | -191539 |
| top | average opponent: 1529record: 1-3 | new rating: 1539 | ||
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1603 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 228 | Cornelius, Justin (1500) | Won 2-1 | +161619 |
| 2sealed | 208 | Healy, John (1511) | Lost 1-2 | -201599 |
| 3sealed | 484 | Higgins, Patrick (1518) | Won 2-0 | +171616 |
| 4sealed | 229 | Snow, David (1641) | Lost 1-2 | -181598 |
| 5sealed | 436 | Gardner, Jonathan (1503) | Lost 1-2 | -191579 |
| top | average opponent: 1535record: 2-3 | new rating: 1579 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 429 | Buell, Alexander (1500) | Lost 1-2 | -191553 |
| 2sealed | 519 | Malossini, Mario (1482) | Won 2-1 | +171570 |
| 3sealed | 494 | Gunter, Cody (1503) | Won 2-0 | +171587 |
| 4sealed | 400 | Jarrett, Adam (1521) | Won 2-0 | +161603 |
| 5sealed | 251 | Efelis, George P (1635) | Won 2-1 | +191622 |
| 6sealed | 239 | Pimm, Douglas (1671) | Won 2-1 | +191641 |
| 7sealed | 98 | Griffith, Michael (1606) | Lost 0-2 | -191622 |
| 8sealed | 119 | Mintz, David (1566) | Lost 0-0 | -191603 |
| top | average opponent: 1561record: 5-3 | new rating: 1603 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 37 | Pennett, Steven (1500) | Won 2-0 | +181559 |
| 2modern | 221 | Embury, Maxwell (1518) | Lost 0-2 | -191540 |
| 3modern | 454 | Moon, Kevin (1381) | Won 2-1 | +151555 |
| 4modern | 386 | Smith, Jason (1631) | Won 2-0 | +191574 |
| 5modern | 113 | Pringle, Steve (1520) | Won 2-0 | +171591 |
| 6modern | 68 | Liberati, Bernard (1536) | Won 2-1 | +171608 |
| 7modern | 107 | Tubergen, Pieter (1655) | Lost 0-2 | -171591 |
| 8modern | 199 | Ababneh, Thabit (1543) | Lost 1-2 | -191572 |
| top | average opponent: 1535record: 5-3 | new rating: 1572 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 230 | Prater, James (1410) | Won 2-0 | +161518 |
| 2sealed | 151 | Ridgway, Richard (1518) | Draw 1-1 | 01518 |
| 3sealed | 162 | Tamatsukuri, KC (1502) | Won 2-1 | +181536 |
| 4sealed | 125 | Hutchison, Daniel (1678) | Won 2-1 | +211557 |
| 5sealed | 66 | Pal, Carlos (1727) | Won 2-1 | +211578 |
| 6sealed | 31 | Iramain, Jorge (1576) | Lost 0-2 | -181560 |
| 7sealed | 83 | Johnston, Shaun J (1552) | Lost 1-2 | -191541 |
| top | average opponent: 1566record: 4-2-1 | new rating: 1541 | ||
| Grand Prix Richmond 2006 (GPT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 113 | Long, James (1500) | Won 2-0 | +181518 |
| 2sealed | 37 | Sheets, Derrick (1577) | Won 2-1 | +191537 |
| 3sealed | 76 | Felske, David (1565) | Lost 1-2 | -171520 |
| 4sealed | 95 | Raval, Chirag (1534) | Lost 1-2 | -181502 |
| 5sealed | 158 | Cooper, Peter (1500) | Won 2-0 | +181520 |
| 6sealed | 101 | Franklin, Eric (1526) | Lost 1-2 | -181502 |
| top | average opponent: 1534record: 3-3 | new rating: 1502 | ||