O'Shaughnessy, James
Current rating: 1732 (#4703)
Record: 65-47
| Grand Prix New Jersey 2017 (std) (AER standard) | starting rating: 1733 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 101 | Bouchard, Jason (1632) | Won 2-1 | +161749 |
| 4standard | 45 | Friedman, Ben (1999) | Lost 0-2 | -141735 |
| 5standard | 289 | Feingersh, Rachel (1775) | Lost 0-2 | -171718 |
| 6standard | 411 | Coleman, Jared (1483) | Won 2-1 | +141732 |
| 7standard | 250 | Brubaker, Ryan (1445) | Won 2-0 | +131745 |
| 8standard | 220 | Austin, Lance (1799) | Lost 1-2 | -171728 |
| 9standard | 299 | Balbuena, Jairo (1561) | Won 2-0 | +151743 |
| 10standard | 128 | Bugalter, Ben (1610) | Lost 1-2 | -211722 |
| 11standard | 204 | Naidu, Akash (1730) | Lost 0-2 | -181704 |
| 12standard | 200 | Batdorf, Nicholas (1474) | Lost 0-2 | -221682 |
| 13standard | 200 | Cooper, Geddes (1777) | Won 2-0 | +201702 |
| 14standard | 178 | Holewiak, Andrew (1532) | Won 2-1 | +151717 |
| 15standard | 155 | Prato, Blair (1550) | Won 2-0 | +151732 |
| top | average opponent: 1644record: 7-6 | new rating: 1732 | ||
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1801 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 279 | Brown, Eric (1802) | Lost 1-2 | -181783 |
| 4standard | 229 | Pyka, Jeffrey (1786) | Won 2-0 | +181801 |
| 5standard | 161 | Rianhard, Cain (1672) | Won 2-0 | +161817 |
| 6standard | 80 | Thompson, Kale (1845) | Lost 1-2 | -181799 |
| 7standard | 298 | Fulks, Franklin (1532) | Lost 0-2 | -231776 |
| 8standard | 252 | Tan, Tien (1591) | Lost 1-2 | -211755 |
| 9standard | 352 | McCutcheon, Jordan (1517) | Lost 1-2 | -221733 |
| top | average opponent: 1678record: 2-5 | new rating: 1733 | ||
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1862 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 38 | Schafer, Gregory (1568) | Won 2-1 | +131875 |
| 4modern | 97 | Wetzel, Bronson (1621) | Won 2-1 | +131888 |
| 5modern | 84 | Tomajko, Oliver (2011) | Won 2-0 | +211909 |
| 6modern | 46 | Tharmaratnam, Samuel (1940) | Lost 0-2 | -181891 |
| 7modern | 70 | DeLuca, Seth (1727) | Won 2-1 | +151906 |
| 8modern | 68 | Boulazeris, Constantine (1603) | Won 2-0 | +131919 |
| 9modern | 26 | Chaney, Lucas (1605) | Won 2-0 | +121931 |
| 10modern | 837 | Palomino Saravia, Gabriel Alfonso (1597) | Lost 0-2 | -241907 |
| 11modern | 874 | Olson, Alexander (1666) | Lost 0-2 | -221885 |
| 12modern | 956 | Fernandez, Aaron (1604) | Lost 0-2 | -231862 |
| 13modern | 957 | Bogner, Ryan (1768) | Lost 0-2 | -201842 |
| 14modern | 972 | Smith, Alexander (1621) | Lost 1-2 | -221820 |
| 15modern | 989 | Rolfes, Lyle (1729) | Lost 0-2 | -191801 |
| top | average opponent: 1697record: 6-7 | new rating: 1801 | ||
| Grand Prix Pittsburgh 2016 (SOI standard) | starting rating: 1739 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 139 | Love, Jake (1519) | Won 2-0 | +141753 |
| 4standard | 32 | White, Drew (1598) | Won 2-0 | +151768 |
| 5standard | 44 | Newton, Clifford (1493) | Won 2-0 | +131781 |
| 6standard | 22 | Cruse, William (1903) | Won 2-1 | +211802 |
| 7standard | 6 | Martin, Steven (1820) | Won 2-0 | +181820 |
| 8standard | 6 | Waksman, Adam (1813) | Lost 0-2 | -181802 |
| 9standard | 24 | Smith, Evan (1896) | Won 2-0 | +191821 |
| 10standard | 269 | Reilly, Benjamin (1631) | Won 2-0 | +151836 |
| 11standard | 260 | Manfield, Seth (2231) | Lost 1-2 | -111825 |
| 12standard | 270 | Bertelsen, Erik (1722) | Won 2-0 | +161841 |
| 13standard | 267 | Liu, Brian (2076) | Lost 1-2 | -141827 |
| 14standard | 290 | Lax, Ari (1899) | Won 2-1 | +201847 |
| 15standard | 267 | Garlock, James (1714) | Won 2-0 | +151862 |
| top | average opponent: 1793record: 10-3 | new rating: 1862 | ||
| Grand Prix New York 2016 (SOI standard) | starting rating: 1701 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 424 | Espejo, Angel (1378) | Won 2-1 | +131714 |
| 4standard | 45 | Li, Jinlin (1608) | Lost 0-2 | -201694 |
| 5standard | 168 | Dy, Michael (1623) | Lost 1-2 | -191675 |
| 6standard | 422 | Pace, Joe (1497) | Won 2-0 | +141689 |
| 7standard | 280 | Ramos, Michael (1562) | Won 2-1 | +161705 |
| 8standard | 138 | Witten, Zack (1622) | Won 2-0 | +171722 |
| 9standard | 185 | DeJoy, Joseph (1680) | Won 2-0 | +171739 |
| 10standard | 121 | Shak, Marcus (1610) | Won 2-1 | +151754 |
| 11standard | 68 | DiMascio, Jared (1627) | Won 2-1 | +161770 |
| 12standard | 29 | Deltour, Louis (1981) | Lost 1-2 | -141756 |
| 13standard | 39 | Ferguson, Robert (1738) | Lost 1-2 | -181738 |
| 14standard | 133 | Sajgalik, Eduardo (1998) | Lost 0-2 | -141724 |
| 15standard | 120 | Bollard, Liam (1546) | Won 2-0 | +151739 |
| top | average opponent: 1652record: 8-5 | new rating: 1739 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1661 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 34 | Blakeman, Slade (1527) | Won 2-0 | +151676 |
| 3modern | 320 | Oravec, Daniel (1495) | Won 2-1 | +151691 |
| 4modern | 138 | Planck, Chris (1521) | Lost 1-2 | -211670 |
| 5modern | 219 | Hanks, Andrew (1542) | Won 2-1 | +161686 |
| 6modern | 72 | Andrews, Joey (1568) | Won 2-1 | +151701 |
| 7modern | 153 | Brito Da Silva, Joao Paulo (1667) | Lost 0-2 | -181683 |
| 8modern | 348 | Huynh, Andy (1544) | Lost 1-2 | -211662 |
| 9modern | 331 | Richards, Kory (1521) | Won 2-0 | +161678 |
| 10modern | 252 | Hinkle, Charles (1835) | Lost 0-2 | -151663 |
| 11modern | 298 | McCamish, Ryan (1597) | Won 2-0 | +161679 |
| 12modern | 256 | Cramer, Zach (1531) | Won 2-0 | +161695 |
| 13modern | 177 | Pullen, Jamie (1589) | Lost 1-2 | -201675 |
| 14modern | 202 | Pedersen, Chris (1483) | Won 2-0 | +141689 |
| 15modern | 153 | Brooks, Cody (1356) | Won 2-0 | +121701 |
| top | average opponent: 1555record: 9-5 | new rating: 1701 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 474 | Rong, Kei (1705) | Won 2-1 | +211577 |
| 4modern | 271 | Anderson, Richard (1528) | Lost 0-2 | -191558 |
| 5modern | 286 | Valentine, AJ (1532) | Won 2-0 | +171575 |
| 6modern | 148 | Denham, Jaron (1540) | Won 2-0 | +181593 |
| 7modern | 171 | Magalhaes, Edgar (2008) | Lost 0-2 | -111582 |
| 8modern | 362 | D'Addario, Daniel (1628) | Won 2-1 | +191601 |
| 9modern | 188 | Kordis, Matthew (1638) | Won 2-0 | +181619 |
| 10modern | 79 | McCready, Robert (1517) | Lost 1-2 | -201599 |
| 11modern | 101 | Parnes, Stuart (1711) | Won 2-1 | +201619 |
| 12modern | 94 | Pelrine, Josh (1726) | Won 2-1 | +201639 |
| 13modern | 82 | Lax, Ari (1861) | Lost 1-2 | -141625 |
| 14modern | 113 | Madson, Blake (1673) | Won 2-1 | +191644 |
| 15modern | 79 | Schick, Mike (1556) | Won 2-1 | +171661 |
| top | average opponent: 1663record: 9-4 | new rating: 1661 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 697 | Lovell, Mitch (1484) | Lost 1-2 | -201558 |
| 2sealed | 676 | Henderson, Christopher (1652) | Lost 1-2 | -161542 |
| 3sealed | 860 | Nyborg, Brian (1467) | Won 2-1 | +171559 |
| 4sealed | 789 | Bridges, Travis (1484) | Lost 1-2 | -201539 |
| 5sealed | 746 | Shofner, Jacob (1464) | Won 2-1 | +171556 |
| top | average opponent: 1510record: 2-3 | new rating: 1556 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 1237 | Brock, Hutch (1740) | Won 2-0 | +211563 |
| 4modern | 1287 | Lisac, Chris (1552) | Won 2-0 | +181581 |
| 5modern | 1065 | Becker, Eric C (1836) | Won 2-0 | +231604 |
| 6modern | 1074 | Yingling, Ryan (1594) | Won 2-0 | +171621 |
| 7modern | 955 | Bosley, Ian (1687) | Lost 1-2 | -161605 |
| 8modern | 807 | Vaughan, Robert (1857) | Lost 0-2 | -141591 |
| 9modern | 723 | Martell, Tom (1863) | Lost 1-2 | -131578 |
| top | average opponent: 1733record: 4-3 | new rating: 1578 | ||
| Grand Prix Charlotte 2005 (extended) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 83 | Nolan, Jeff (1520) | Won 2-0 | +191523 |
| 2extended | 36 | Anglin, Doug (1518) | Lost 1-2 | -181505 |
| 3extended | 95 | Coley, Todd (1499) | Won 2-0 | +171522 |
| 4extended | 116 | Frank, Harry (1518) | Lost 0-2 | -181504 |
| 5extended | 133 | Nowell, Ken (1444) | Won 2-0 | +171521 |
| 6extended | 76 | Yates, Christopher (1520) | Won 2-0 | +181539 |
| 7extended | 70 | Mollenkopf, Tyler (1541) | Won 2-0 | +181557 |
| 8extended | 31 | Irvine, David (1690) | Lost 1-2 | -151542 |
| top | average opponent: 1531record: 5-3 | new rating: 1542 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 43 | Barselow, Michael (1500) | Won 2-1 | +181518 |
| 5block | 11 | Prest, Dan (1516) | Won 2-0 | +181536 |
| 6block | 28 | Pelcak, John (1601) | Lost 1-2 | -171519 |
| 7block | 33 | Homer, Tony (1556) | Lost 1-2 | -171502 |
| 8block | 52 | Murphy, John (1593) | Lost 1-2 | -171485 |
| 9block | 126 | Doyle, Connor (1535) | Won 2-0 | +191504 |
| top | average opponent: 1550record: 3-3 | new rating: 1504 | ||