Williams, David W [NZL]
Current rating: 1503
Record: 28-30-1 (GP) / 6-10 (professional)
| Grand Prix Sydney 2016 (EMN limited) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 23 | Cantu, Anthony (1411) | Lost 0-2 | -211533 |
| 2sealed | 241 | Rowe, Daniel (1586) | Won 2-0 | +191552 |
| 3sealed | 287 | Giroud, Pierre (1640) | Won 2-0 | +201572 |
| 4sealed | 287 | Ward, Daniel (2025) | Lost 0-2 | -101562 |
| 5sealed | 264 | Smith, Anthony [AUS] (1443) | Won 2-1 | +151577 |
| 6sealed | 249 | Houllis, Kurt (1505) | Lost 1-2 | -191558 |
| 7sealed | 263 | Oliver-Conroy, Christopher (1534) | Lost 1-2 | -181540 |
| 8sealed | 302 | Del Rosario, Janu (1481) | Lost 0-2 | -191521 |
| 9sealed | 272 | Zhang, George (1530) | Lost 0-2 | -181503 |
| top | average opponent: 1573record: 3-6 | new rating: 1503 | ||
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 4 | Harnden, Simon (1712) | Won 2-1 | +211553 |
| 3sealed | 104 | Barrett, Harpo (1537) | Won 2-1 | +181571 |
| 4sealed | 37 | Rowe, Daniel (1566) | Lost 1-2 | -181553 |
| 5sealed | 81 | Sanchez, Joshua (1505) | Won 2-1 | +171570 |
| 6sealed | 74 | Lewis-Jonns, Ryan (1539) | Won 2-0 | +171587 |
| 7sealed | 14 | Edwards, Robin (1748) | Lost 0-2 | -151572 |
| 8sealed | 82 | Feng, Feng (1549) | Lost 1-2 | -181554 |
| top | average opponent: 1594record: 4-3 | new rating: 1554 | ||
| Pro Tour Magic Origins (ORI standard) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 119 | Tchernomazov, Ilja (1626) | Won 2-0 | +201574 |
| 2draft | 155 | Mihara, Makihito (2029) | Lost 1-2 | -101564 |
| 3draft | 147 | Al Takrouri, Karim (1502) | Won 2-0 | +161580 |
| 4standard | 72 | Nassif, Gabriel (1780) | Lost 0-2 | -141566 |
| 5standard | 124 | Kumagai, Riku (1688) | Lost 0-2 | -161550 |
| 6standard | 137 | Karsten, Frank (1894) | Won 2-1 | +241574 |
| 7standard | 107 | Lewandowski, Bartlomiej (1916) | Won 2-0 | +241598 |
| 8standard | 78 | Williams, David A (1856) | Won 2-1 | +231621 |
| 9draft | 92 | Singh, Devsharan (1828) | Lost 1-2 | -141607 |
| 10draft | 120 | Damo da Rosa, Paulo Vitor (2042) | Lost 1-2 | -111596 |
| 11draft | 101 | Grimmer, Jasper (1782) | Won 2-1 | +211617 |
| 12standard | 90 | Maas, Kyle (1615) | Lost 1-2 | -181599 |
| 13standard | 80 | Usui, Syou (1644) | Lost 0-2 | -171582 |
| 14standard | 96 | Blanchet, Eric (1662) | Lost 0-2 | -161566 |
| 15standard | 93 | Thompson, Sean (1542) | Lost 0-2 | -191547 |
| 16standard | 86 | Cordell, Kenneth (1701) | Lost 1-2 | -151532 |
| top | average opponent: 1757record: 6-10 | new rating: 1532 | ||
| Grand Prix Auckland 2015 (FRF limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 25 | Xie, Sephirtoh (1500) | Lost 1-2 | -191523 |
| 2sealed | 101 | strachan, Dylan (1482) | Won 2-0 | +171540 |
| 3sealed | 89 | D'Ambrosio, Loren (1663) | Won 2-0 | +211561 |
| 4sealed | 68 | Ngata, Anaru (1517) | Lost 0-2 | -191542 |
| 5sealed | 94 | O'Keefe, Mitchell (1485) | Won 2-0 | +171559 |
| 6sealed | 100 | Krause-Heuer, Christop (1451) | Lost 1-2 | -201539 |
| 7sealed | 5 | Mallett, Jared (1459) | Won 2-0 | +161555 |
| 8sealed | 77 | Cameron, Iain (1529) | Won 2-1 | +181573 |
| 9sealed | 58 | Sha, Chris (1554) | Lost 1-2 | -191554 |
| top | average opponent: 1516record: 5-4 | new rating: 1554 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 249 | Warren, Ben [AUS] (1382) | Won 2-0 | +171496 |
| 2sealed | 69 | Jones, Simon (1518) | Won 2-0 | +181514 |
| 3sealed | 72 | Nonis, Daryl Michael (1491) | Won 2-0 | +181532 |
| 4sealed | 27 | Sparks, Chris (1484) | Lost 1-2 | -191513 |
| 5sealed | 139 | Rokman, Marcus (1640) | Won 2-1 | +201533 |
| 6sealed | 75 | Harris, Aaron (1480) | Won 2-0 | +171550 |
| 7sealed | 16 | Sim, Chapman (1896) | Won 2-1 | +241574 |
| 8sealed | 14 | Botkov, Max (1761) | Lost 1-2 | -141560 |
| 9sealed | 52 | Schneider, Tim (1571) | Lost 0-2 | -181542 |
| top | average opponent: 1580record: 6-3 | new rating: 1542 | ||
| Grand Prix Auckland 2012 (RTR standard) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 25 | Swannack, Cole (1568) | Won 2-1 | +201462 |
| 5standard | 5 | Gray, Scott (1761) | Draw 1-1 | +61468 |
| 6standard | 9 | Mines, David (1571) | Lost 0-2 | -161452 |
| 7standard | 25 | Pinkham, Steven (1539) | Won 2-1 | +191471 |
| 8standard | 14 | Andjelkovic, Mase (1529) | Lost 0-2 | -171454 |
| 9standard | 29 | Shen, Xin (1512) | Won 2-1 | +191473 |
| 10standard | 17 | Hu, Peter (1575) | Lost 1-2 | -161457 |
| 11standard | 27 | Jordan, Robert (1543) | Won 2-0 | +201477 |
| 12standard | 20 | Mihic, Sava (1584) | Won 2-1 | +201497 |
| 13standard | 14 | Poor, William (1545) | Lost 1-2 | -181479 |
| top | average opponent: 1573record: 5-4-1 | new rating: 1479 | ||
| Grand Prix Auckland 2008 (ALA limited) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 9 | Love, Simon (1518) | Won 2-1 | +201453 |
| 3sealed | 7 | Anderson, Raymond (1538) | Lost 0-2 | -171436 |
| 4sealed | 60 | Poor, William (1518) | Won 2-1 | +201456 |
| 5sealed | 34 | Thompson, Gerry (1964) | Lost 0-2 | -101446 |
| 6sealed | 48 | Dale, Hayden (1520) | Won 2-0 | +201466 |
| 7sealed | 50 | Davey, Bruce (1489) | Won 2-0 | +181484 |
| 8draft | 25 | Anderson, Grant (1552) | Lost 0-2 | -171467 |
| 9draft | 28 | Guo, Yida (1539) | Lost 1-2 | -161451 |
| 10draft | 20 | Richards, Scott (1637) | Lost 0-2 | -151436 |
| 11draft | 13 | Sacher, AJ (1746) | Won 2-1 | +241460 |
| 12draft | 18 | Lawson, Dmitry (1493) | Lost 1-2 | -181442 |
| top | average opponent: 1592record: 5-6 | new rating: 1442 | ||
| Grand Prix Sydney 2006 (TSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 10 | Bennett, Andrew (1552) | Lost 0-2 | -171483 |
| 5sealed | 24 | Nakajima, Chikara (1651) | Lost 0-2 | -151468 |
| 6sealed | 42 | Brown, Clarrie (1566) | Lost 0-2 | -161452 |
| 7sealed | 55 | Copus, Lee (1423) | Lost 0-2 | -191433 |
| top | average opponent: 1548record: 0-4 | new rating: 1433 | ||