Williamson, David [AUS]
Current rating: 1727 (#4961)
Record: 67-51 (GP) / 21-19 (professional)
- 2007
- 2009
- 2010
- 2011
- 2012
- 2014
- 2015
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1700 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 260 | Hiett, Ryan (1484) | Won 2-0 | +141714 |
| 2sealed | 171 | Pepper, Patrick (1601) | Won 2-0 | +161730 |
| 3sealed | 35 | Avis, Benjamin (1467) | Won 2-0 | +131743 |
| 4sealed | 85 | Seaton, Traci (1507) | Won 2-0 | +141757 |
| 5sealed | 34 | Bretherton, Dan (1636) | Lost 0-2 | -211736 |
| 6sealed | 64 | Fong, Patrick (1560) | Won 2-0 | +151751 |
| 7sealed | 23 | Benz, Alex (1580) | Lost 1-2 | -211730 |
| 8sealed | 112 | Williams, Luke (1750) | Won 2-1 | +191749 |
| 9sealed | 75 | Dannoun, Blake (1525) | Lost 0-2 | -221727 |
| top | average opponent: 1568record: 6-3 | new rating: 1727 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1714 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 130 | Sharma, Aditya (1518) | Won 2-0 | +151729 |
| 3sealed | 113 | Sangston, Brendan (1537) | Lost 1-2 | -221707 |
| 4sealed | 173 | Hamilton, Nicholas (1522) | Won 2-0 | +151722 |
| 5sealed | 118 | van Ravenzwaaij, Don (1814) | Lost 1-2 | -161706 |
| 6sealed | 114 | Hur, Min (1554) | Won 2-0 | +151721 |
| 7sealed | 131 | Matthews, Tony (1532) | Lost 1-2 | -211700 |
| top | average opponent: 1579record: 3-3 | new rating: 1700 | ||
| Pro Tour Dark Ascension (DKA standard) | starting rating: 1787 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 165 | Postlethwait, William (1825) | Lost 1-2 | -171770 |
| 2standard | 118 | Wang, Xuan-ji (1693) | Won 2-1 | +161786 |
| 3standard | 167 | Biscardi, Francesco (1499) | Won 2-1 | +131799 |
| 4standard | 90 | Ishimaru, Ken (1759) | Lost 1-2 | -191780 |
| 5standard | 152 | Londos, Ludvig (1722) | Lost 0-2 | -191761 |
| 6draft | 35 | Miller, Chris (1441) | Lost 0-2 | -231738 |
| 8draft | 137 | Dona, Pietro (1440) | Lost 0-2 | -241714 |
| top | average opponent: 1626record: 2-5 | new rating: 1714 | ||
| 2011 World Championship (mixed) | starting rating: 1818 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 80 | Bednarik, Pavel (1604) | Lost 0-1 | -211797 |
| 2standard | 124 | Finkel, Jon (1984) | Won 2-1 | +211818 |
| 3standard | 97 | Stolzmann, John (1750) | Lost 1-2 | -191799 |
| 4standard | 98 | Pinder, Tim (1534) | Won 2-1 | +131812 |
| 5standard | 105 | Jacob, Michael (1852) | Lost 1-2 | -171795 |
| 6standard | 117 | Musial, Lukasz (1787) | Won 2-0 | +181813 |
| 7draft | 45 | Varady, Balazs (1604) | Won 2-1 | +141827 |
| 8draft | 19 | Skrypov, Igor (1536) | Lost 0-2 | -231804 |
| 9draft | 80 | Solano, Jesus (1623) | Won 2-1 | +141818 |
| 10draft | 116 | van Medevoort, Robert (1708) | Lost 0-2 | -201798 |
| 11draft | 37 | West, Alexander (1854) | Won 2-0 | +191817 |
| 12draft | 65 | Rusconi, Matteo (1612) | Lost 0-2 | -211796 |
| 13modern | 97 | Kim, Kyoungsoo (1404) | Lost 1-2 | -251771 |
| 14modern | 100 | Rietzl, Paul (1965) | Won 2-1 | +211792 |
| 15modern | 102 | Blohon, Lukas (1813) | Lost 0-2 | -171775 |
| 16modern | 97 | Kowal, Brian (1668) | Lost 1-2 | -201755 |
| 17modern | 120 | Petersen, Aik (1586) | Won 2-0 | +151770 |
| 18modern | 99 | Kocsis, Gabor (1717) | Won 2-1 | +171787 |
| top | average opponent: 1700record: 9-9 | new rating: 1787 | ||
| Grand Prix Brisbane 2011 (ISD standard) | starting rating: 1783 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 44 | Chin, Jiann Hua (1536) | Lost 0-0 | -221761 |
| 5standard | 76 | Lynch, James (1483) | Won 2-1 | +131774 |
| 6standard | 22 | Phillips, Russell [AUS] (1558) | Won 2-0 | +141788 |
| 7standard | 9 | Chen, Cameron (1587) | Won 2-0 | +141802 |
| 8standard | 8 | Sim, Chapman (1684) | Won 2-1 | +161818 |
| 9standard | 7 | Egan, Isaac (1824) | Won 2-1 | +181836 |
| 10standard | 4 | Zhang, Jacky (1863) | Won 2-0 | +191855 |
| 11standard | 1 | Fondum, Tim (1600) | Won 2-1 | +131868 |
| 12standard | 1 | Pranoto, Andreas (1612) | Lost 0-2 | -221846 |
| 13standard | 5 | Neeman, Jeremy (2057) | Lost 0-2 | -151831 |
| 14standard | 5 | Yasooka, Shota (2110) | Lost 1-2 | -131818 |
| top | average opponent: 1720record: 7-4 | new rating: 1818 | ||
| Pro Tour Philadelphia 2011 (modern) | starting rating: 1679 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 119 | Bosman, Colin (1500) | Won 2-1 | +151694 |
| 2modern | 69 | Aintrazi, Ali (1749) | Won 2-0 | +191713 |
| 3modern | 40 | Maugard, Antoine (1676) | Lost 0-2 | -191694 |
| 4modern | 66 | Lax, Ari (1990) | Won 2-1 | +241718 |
| 5modern | 58 | Bragg, Daniel (1717) | Lost 1-2 | -181700 |
| 6draft | 20 | Sharfman, David (1992) | Won 2-0 | +231723 |
| 7draft | 138 | Chan, Jeffrey Guo Ming (1746) | Won 2-0 | +181741 |
| 8draft | 16 | Yetka, David (1599) | Won 2-1 | +161757 |
| 9draft | 8 | Bjornerud, Sveinung (1872) | Won 2-1 | +201777 |
| 10draft | 61 | Mueller, Andre (1901) | Won 2-0 | +201797 |
| 11draft | 7 | Nagy, Ferenc (1585) | Lost 0-2 | -221775 |
| 12modern | 24 | Black, Samuel (1825) | Lost 0-2 | -171758 |
| 13modern | 37 | van den Oever, Roy (1807) | Won 2-0 | +191777 |
| 14modern | 12 | Nakamura, Shuhei (2028) | Won 2-1 | +231800 |
| 15modern | 17 | DeMars, Brian (1888) | Lost 1-2 | -171783 |
| 16modern | 17 | Sheppard, Bradley (1666) | ID | 01783 |
| top | average opponent: 1784record: 10-5-1 | new rating: 1783 | ||
| Grand Prix Florence 2010 (SOM limited) | starting rating: 1646 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 35 | Bugliani, Stefano (1560) | Won 2-0 | +171663 |
| 5sealed | 8 | Reelitz, Gregory (1519) | Won 2-1 | +151678 |
| 6sealed | 11 | Corsanini, Michele (1730) | Won 2-1 | +191697 |
| 7sealed | 1 | Hugony, Francesco (1880) | Lost 0-2 | -151682 |
| 8sealed | 23 | Mitamura, Kazuya (1968) | Won 2-0 | +231705 |
| 9sealed | 7 | Lazzini, Luca (1603) | Won 2-1 | +161721 |
| 10draft | 13 | Hugony, Francesco (1891) | Lost 0-2 | -141707 |
| 11draft | 57 | Schermer, Duncan (1639) | Won 2-0 | +161723 |
| 12draft | 21 | Sandroni, Riccardo (1644) | Lost 0-2 | -191704 |
| 13draft | 63 | Amarantidis, Thanos (1654) | Won 2-1 | +171721 |
| 14draft | 64 | Pettenuzzo, Daniele (1634) | Lost 1-2 | -201701 |
| 15draft | 37 | Beligiannis, Taxiarhis (1481) | Lost 0-2 | -221679 |
| top | average opponent: 1684record: 7-5 | new rating: 1679 | ||
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1629 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 24 | Reijke, Sjoerd (1469) | Won 2-1 | +151644 |
| 5sealed | 25 | McNally, Sean (1492) | Lost 1-2 | -201624 |
| 6sealed | 46 | Stihle, Laurent (1665) | Won 2-1 | +181642 |
| 7sealed | 31 | Londos, Ludvig (1814) | Won 2-1 | +221664 |
| 8sealed | 28 | Stone, Dennis (1795) | Lost 0-2 | -161648 |
| 9sealed | 44 | Borcevsky, Pavel (1609) | Won 2-0 | +171665 |
| 10sealed | 21 | Parez, Julien (1689) | Lost 0-2 | -171648 |
| 11draft | 42 | Chronopoulos, Bill (1839) | Lost 0-2 | -151633 |
| 12draft | 93 | Kotas, Frantisek (1641) | Lost 1-2 | -181615 |
| 13draft | 74 | Kalmykov, Kirill (1520) | Won 2-0 | +171632 |
| 14draft | 2 | Primot, Armel (1543) | Won 2-0 | +161648 |
| 15draft | 33 | Garcia Mene, Alex (1672) | Won 2-0 | +181666 |
| 16draft | 57 | De Wael, Tom (1545) | Lost 0-2 | -201646 |
| top | average opponent: 1638record: 7-6 | new rating: 1646 | ||
| Grand Prix Gothenburg 2010 (M11 limited) | starting rating: 1595 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 611 | Hofmann, Mike (1672) | Won 2-0 | +201615 |
| 3sealed | 514 | Lauritsen, Morten (1536) | Won 2-0 | +161631 |
| 4sealed | 531 | Eigner, Nikolaus (1704) | Lost 0-2 | -161615 |
| 5sealed | 564 | Sivertsen, Gunnar Olai (1537) | Won 2-0 | +161631 |
| 6sealed | 521 | Gregoir, Christophe (1817) | Lost 1-2 | -141617 |
| 7sealed | 556 | Thoren, Jonas (1535) | Won 2-0 | +161633 |
| 8sealed | 540 | Knauf, Daniel (1500) | Lost 0-2 | -201613 |
| 9sealed | 560 | Guild, Jacob (1537) | Won 2-0 | +161629 |
| top | average opponent: 1605record: 5-3 | new rating: 1629 | ||
| Grand Prix Lyon 2010 (ROE limited) | starting rating: 1582 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 2 | Pecoul, Samuel (1518) | Won 2-0 | +171599 |
| 3sealed | 104 | Bottecchia, Gabriele (1708) | Lost 1-2 | -161583 |
| 4sealed | 199 | Londos, Ludvig (1735) | Won 2-1 | +211604 |
| 5sealed | 124 | Marche, Patrick (1444) | Won 2-0 | +151619 |
| 6sealed | 65 | Avrillon, Christopher (1532) | Lost 1-2 | -201599 |
| 7sealed | 77 | Graham, Arron (1457) | Won 2-0 | +161615 |
| 8sealed | 76 | Pichon, Elie (1695) | Won 2-0 | +191634 |
| 9sealed | 28 | Brendemuhl, Bernd (1815) | Won 2-0 | +211655 |
| 10sealed | 42 | Palominos, Pablo (1544) | Lost 1-2 | -201635 |
| 11draft | 24 | Hampl, Benjamin (1527) | Lost 1-2 | -201615 |
| 12draft | 54 | Garbay, Maxime (1560) | Won 2-1 | +171632 |
| 13draft | 69 | Schwabacher, Isaac (1642) | Lost 0-2 | -181614 |
| 14draft | 54 | Migne, Vincent (1548) | Lost 1-2 | -191595 |
| 15draft | 28 | Garbay, Maxime (1543) | Won 2-1 | +171612 |
| 16draft | 31 | Lachevre, Jerome (1670) | Lost 1-2 | -171595 |
| top | average opponent: 1596record: 8-7 | new rating: 1595 | ||
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1620 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 85 | Kiefer, Lorenz (1587) | Won 2-1 | +181638 |
| 3standard | 27 | Grumelli, Riccardo (1518) | Lost 1-2 | -201618 |
| 4standard | 227 | Giusti, Emanuele (1721) | Lost 1-2 | -171601 |
| 5standard | 291 | Youssef, Younes (1526) | Lost 1-2 | -191582 |
| top | average opponent: 1588record: 1-3 | new rating: 1582 | ||
| Grand Prix Paris 2009 (ZEN limited) | starting rating: 1627 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 640 | Bailly-Maitre, Gael (1612) | Lost 1-2 | -181609 |
| 3sealed | 769 | Julien, Nicolas (1469) | Lost 0-2 | -201589 |
| 4sealed | 969 | Galy, Julien (1462) | Won 2-1 | +151604 |
| 5sealed | 877 | Horre, Bart (1448) | Won 2-0 | +161620 |
| 6sealed | 820 | Duguet, Nicolas (1533) | Won 2-1 | +161636 |
| 7sealed | 775 | Reinderman, Dimitri (1767) | Lost 0-2 | -161620 |
| top | average opponent: 1548record: 3-3 | new rating: 1620 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1652 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 34 | Brozek, Jan (1562) | Lost 1-2 | -201632 |
| 4sealed | 157 | Charvat, Jiri (1392) | Won 2-1 | +141646 |
| 5sealed | 126 | Quaeschning, Max (1538) | Won 2-0 | +161662 |
| 6sealed | 48 | Franz, Jan (1557) | Lost 0-2 | -201642 |
| 7sealed | 98 | Vidugiris, Gaudenis (1821) | Lost 1-2 | -151627 |
| top | average opponent: 1574record: 2-3 | new rating: 1627 | ||
| Grand Prix Brighton 2009 (M10 limited) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 1 | Barbier, Guillaume (1643) | Won 2-0 | +201583 |
| 3sealed | 14 | Pashuysen, Tom (1568) | Won 2-0 | +171600 |
| 4sealed | 67 | Lissens, Gil J (1508) | Won 2-0 | +171617 |
| 5sealed | 35 | Sibast, Rasmus (1810) | Won 2-1 | +211638 |
| 6sealed | 9 | Calafell, Joel (1945) | Won 2-1 | +241662 |
| 7sealed | 14 | Grove, Kevin (1771) | Lost 1-2 | -161646 |
| 8sealed | 40 | Barkarson, Unnsteinn (1577) | Lost 1-2 | -201626 |
| 9sealed | 31 | Thomsen, Sascha (1758) | Won 2-1 | +211647 |
| 10draft | 7 | Papakonstantinou, Thomas (1571) | Won 2-0 | +161663 |
| 11draft | 25 | Strom, Tobias (1763) | Won 2-1 | +201683 |
| 12draft | 14 | Neirynck, Branco (1636) | Lost 0-2 | -191664 |
| 13draft | 18 | Wright, Stuart (1862) | Won 2-0 | +221686 |
| 14draft | 22 | Kanis, Jeroen (1548) | Lost 1-2 | -211665 |
| 15draft | 22 | Calafell, Joel (1924) | Lost 1-2 | -131652 |
| top | average opponent: 1706record: 9-5 | new rating: 1652 | ||
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 514 | Kittl, Jens (1623) | Won 2-1 | +201538 |
| 3sealed | 440 | Vaucher, Joris (1488) | Lost 1-2 | -191519 |
| 4sealed | 549 | Van Den Brande, Wim (1517) | Won 2-1 | +181537 |
| 5sealed | 451 | Brandt, Kenneth (1729) | Won 2-0 | +211558 |
| 6sealed | 445 | Born, Rutger (1602) | Won 2-1 | +191577 |
| 7sealed | 449 | Helmich, Arnout (1571) | Lost 1-2 | -181559 |
| 8sealed | 462 | van Houts, Kevin (1588) | Won 2-1 | +191578 |
| 9sealed | 449 | Berthoux, Jeremy (1779) | Lost 1-2 | -151563 |
| top | average opponent: 1612record: 5-3 | new rating: 1563 | ||
| Grand Prix Brisbane 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Hare, Matthew (1480) | Won 2-0 | +181518 |
| 2sealed | 10 | Brewer, Warren (1466) | Won 2-0 | +171535 |
| 3sealed | 3 | Cuff, Andrew (1541) | Won 2-0 | +181553 |
| 4sealed | 5 | Farrelly, Paul (1528) | Lost 0-2 | -191534 |
| 5sealed | 50 | Hong, Craig (1504) | Won 2-0 | +181552 |
| 6sealed | 24 | Le Montagner, Mathieu (1709) | Lost 0-2 | -151537 |
| 7sealed | 34 | Varga, Andrew (1504) | Lost 0-2 | -191518 |
| top | average opponent: 1533record: 4-3 | new rating: 1518 | ||