Westfall, Matthew
Current rating: 1677
Record: 45-36-1 (GP) / 13-9-1 (professional)
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1671 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 495 | Pozsgay, Michael (1690) | Lost 0-2 | -181653 |
| 4sealed | 555 | Hughes, Cory (1516) | Won 2-0 | +161669 |
| 5sealed | 465 | Metzger, Jonathan (1519) | Won 2-1 | +151684 |
| 6sealed | 479 | Parnell, Justin (1523) | Won 2-0 | +151699 |
| 7sealed | 449 | Bragg, Tillman (1704) | Lost 0-2 | -181681 |
| 8sealed | 462 | Sroges, Walker A (1543) | Won 2-0 | +161697 |
| 9sealed | 453 | Matlock, Justin (1578) | Lost 0-2 | -201677 |
| top | average opponent: 1582record: 4-3 | new rating: 1677 | ||
| Pro Tour Honolulu 2009 (Alara block) | starting rating: 1669 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 66 | Privalov, Alexander (1586) | Lost 1-2 | -201649 |
| 2block | 136 | Lai, Chien-Shie (1590) | Won 2-0 | +171666 |
| 3block | 128 | Strom, Tobias (1648) | Lost 1-2 | -181648 |
| 4block | 128 | Finkel, Jon (1926) | Lost 1-2 | -131635 |
| 5block | 175 | Alepin, Alexandre (1679) | Lost 0-2 | -171618 |
| 6draft | 134 | Ellis, Kenneth (1620) | Won 2-1 | +181636 |
| 7draft | 97 | Constantine, Ranjith (1537) | Won 2-0 | +161652 |
| 8draft | 129 | Caplan, David (1712) | Won 2-0 | +191671 |
| top | average opponent: 1662record: 4-4 | new rating: 1671 | ||
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1687 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 6 | Tran, Viet (1527) | Won 2-1 | +151702 |
| 5standard | 12 | Higashi, Chris (1640) | Draw 1-1 | -11701 |
| 6standard | 37 | Malin, Antti (1966) | Lost 1-2 | -131688 |
| 7standard | 109 | Rossiter, Christopher (1626) | Lost 1-2 | -191669 |
| top | average opponent: 1690record: 1-2-1 | new rating: 1669 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1709 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 159 | Heal, Bryan (1604) | Lost 0-2 | -191690 |
| 3sealed | 228 | Guzzo, Benedict (1500) | Won 2-1 | +141704 |
| 4sealed | 205 | Voduarka, Jesse J (1483) | Won 2-0 | +141718 |
| 5sealed | 207 | Smith, Eric (1500) | Won 2-0 | +141732 |
| 6sealed | 78 | Hoey, Matthew (1555) | Won 2-1 | +151747 |
| 7sealed | 38 | Sale, Daniel (1578) | Lost 0-2 | -211726 |
| 8sealed | 68 | Drake, Thomas C (1578) | Lost 1-2 | -211705 |
| 9sealed | 112 | Lipczynski, Aaron (1706) | Lost 0-2 | -181687 |
| top | average opponent: 1563record: 4-4 | new rating: 1687 | ||
| Grand Prix Toronto 2006 (DIS limited) | starting rating: 1732 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 68 | Schneider, Steve (1564) | Won 2-1 | +151747 |
| 3sealed | 44 | Morris, Arthur (1407) | Won 2-0 | +121759 |
| 4sealed | 53 | Wu, George (1659) | Won 2-1 | +161775 |
| 5sealed | 4 | Day, Kyle C (1572) | Won 2-0 | +141789 |
| 6sealed | 13 | Vizzacco, Mark (1622) | Lost 0-2 | -211768 |
| 7sealed | 16 | Meier, Dave (1571) | Lost 1-2 | -211747 |
| 8sealed | 48 | Popp, Brian (1552) | Won 2-1 | +141761 |
| 9draft | 26 | Jonsson, Anton (1921) | Lost 1-2 | -151746 |
| 10draft | 1 | Bailly, Henri (1490) | Won 2-1 | +141760 |
| 11draft | 26 | Ferneyhough, Michael (1559) | Lost 1-2 | -221738 |
| 12draft | 20 | McCarthy, Stephen (1501) | Lost 1-2 | -221716 |
| 13draft | 28 | Ting-A-Kee, Andrew (1523) | Won 2-1 | +141730 |
| 14draft | 20 | Nagy, Stephen (1578) | Lost 0-2 | -211709 |
| top | average opponent: 1578record: 7-6 | new rating: 1709 | ||
| Pro Tour Prague 2006 (DIS draft) | starting rating: 1635 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 188 | Diez, Mikel (1747) | Won 2-1 | +201655 |
| 2draft | 80 | Chan, Tiago (1965) | Draw 1-1 | +51660 |
| 3draft | 1 | Yokoi, Masaki (1790) | Lost 1-2 | -151645 |
| 4draft | 31 | Perla, Giuseppe (1533) | Won 2-0 | +161661 |
| 5draft | 33 | Feinstein, David (1582) | Won 2-1 | +161677 |
| 6draft | 40 | Kaminek, Petr (1654) | Won 2-1 | +181695 |
| 7draft | 22 | Willems, Sjoerd (1671) | Won 2-1 | +171712 |
| 8draft | 14 | Sander, Andreas (1707) | Won 2-0 | +181730 |
| 9draft | 2 | Crosby, Joseph (1948) | Lost 0-2 | -141716 |
| 10draft | 7 | Nakamura, Shuhei (2002) | Lost 1-2 | -131703 |
| 11draft | 15 | Diezel, Michael (1866) | Won 2-1 | +211724 |
| 12draft | 22 | Oberbek, Przemyslaw (1656) | Won 2-1 | +171741 |
| 13draft | 5 | Kapalas, Georgios (1938) | Lost 1-2 | -141727 |
| 14draft | 26 | Peset, Alexandre (1894) | Lost 1-2 | -151712 |
| 15draft | 33 | Tautic, Raymond (1831) | Won 2-0 | +201732 |
| top | average opponent: 1786record: 9-5-1 | new rating: 1732 | ||
| Grand Prix Richmond 2006 (GPT limited) | starting rating: 1606 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 48 | Jordan, Chris (1500) | Won 2-0 | +171623 |
| 2sealed | 98 | Vizzacco, Mark (1606) | Lost 0-2 | -191604 |
| 3sealed | 95 | Bahnaman, Stephen (1533) | Won 2-0 | +171621 |
| 4sealed | 131 | Jackness, Justin (1613) | Won 2-1 | +181639 |
| 5sealed | 92 | Polanik, Kimball (1627) | Won 2-0 | +181657 |
| 6sealed | 21 | Garnelis, Kyle (1587) | Won 2-1 | +161673 |
| 7sealed | 33 | Nagy, Stephen (1591) | Lost 0-2 | -191654 |
| 8sealed | 41 | Guskin, David (1603) | Lost 0-2 | -191635 |
| top | average opponent: 1583record: 5-3 | new rating: 1635 | ||
| Grand Prix Charlotte 2005 (extended) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 107 | Aintrazi, Amer (1500) | Won 2-0 | +171552 |
| 2extended | 61 | Frankosky, Davin (1518) | Won 2-1 | +171569 |
| 3extended | 3 | Mollenkopf, Tyler (1536) | Won 2-0 | +181587 |
| 4extended | 8 | McLaughlin, Keith (1784) | Won 2-0 | +211608 |
| 5extended | 11 | Brady, Michael (1560) | Lost 0-2 | -191589 |
| 6extended | 50 | Strunk, Michael (1512) | Lost 0-2 | -191570 |
| 7extended | 49 | Beeton, James (1691) | Won 2-1 | +201590 |
| 8extended | 30 | Sharfman, David (1499) | Won 2-1 | +161606 |
| top | average opponent: 1575record: 6-2 | new rating: 1606 | ||
| Grand Prix Philadelphia 2005 (legacy) | starting rating: 1591 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 30 | Patch, Jonathan (1500) | Lost 0-2 | -201571 |
| 2legacy | 165 | Davis, John (1621) | Lost 0-2 | -171554 |
| 3legacy | 200 | Gottehrer, Jonathan (1463) | Lost 0-2 | -191535 |
| top | average opponent: 1528record: 0-3 | new rating: 1535 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 221 | Strauch, Brian (1500) | Won 2-0 | +171560 |
| 2block | 31 | Suarez-Papp, Alex (1518) | Won 2-1 | +171577 |
| 3block | 9 | Gravlin, Andrew (1693) | Won 2-0 | +201597 |
| 4block | 46 | Clavette, Raymond (1617) | Won 2-1 | +181615 |
| 5block | 19 | Schunk, Jason (1574) | Lost 1-2 | -181597 |
| 6block | 68 | Murphy, John (1594) | Won 2-1 | +181615 |
| 7block | 290 | Mancuso, Damien (1538) | Won 2-1 | +161631 |
| 8block | 45 | Kessel, Jens (1538) | Lost 0-2 | -191612 |
| 9block | 66 | Roy, Christopher (1566) | Won 2-1 | +171629 |
| 10block | 47 | Allen, Keith (1589) | Lost 0-2 | -191610 |
| 11block | 59 | Napoli, Phillip (1602) | Won 2-0 | +181628 |
| 12block | 40 | Powelson, Jeff (1601) | Lost 1-2 | -191609 |
| 13block | 41 | Racloz, John (1573) | Lost 0-2 | -181591 |
| 14block | 51 | Bowser, Chuck (1558) | Won 2-1 | +171608 |
| 15block | 43 | Dyke, Jim (1654) | Lost 1-2 | -171591 |
| top | average opponent: 1581record: 9-6 | new rating: 1591 | ||
| Grand Prix Columbus 2004 (DST limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 29 | Thieleman, Eric (1500) | Lost 0-2 | -171464 |
| 2sealed | 340 | Bohn, Phillip (1482) | Won 2-0 | +181482 |
| 3sealed | 296 | Phillips, Derek (1446) | Won 2-1 | +171499 |
| 4sealed | 177 | Grzadko, Kris (1518) | Won 2-0 | +191518 |
| 5sealed | 154 | Russell, Paul (1519) | Won 2-0 | +181536 |
| 6sealed | 41 | Phillips, Brian M (1546) | Won 2-0 | +181554 |
| 7sealed | 61 | Lehnert, Ken (1600) | Won 2-1 | +191573 |
| 8sealed | 37 | Harvey, Eugene (1938) | Lost 0-2 | -121561 |
| 9sealed | 66 | Howell, Damon (1525) | Lost 1-2 | -181543 |
| top | average opponent: 1564record: 6-3 | new rating: 1543 | ||
| Grand Prix Detroit 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 150 | Rau, William (1464) | Won 2-0 | +171517 |
| 2block | 31 | Lehnert, Ken (1508) | Lost 0-2 | -181499 |
| 3block | 214 | Teasley, Nathan (1502) | Won 2-1 | +181517 |
| 4block | 145 | Derro, Joseph (1525) | Lost 0-2 | -181499 |
| 5block | 151 | Dolezal, Tom (1501) | Lost 0-2 | -181481 |
| 6block | 175 | Higgins, Aaron (1482) | Won 2-0 | +181499 |
| 7block | 131 | Fox, Matt (1501) | Lost 0-2 | -181481 |
| top | average opponent: 1498record: 3-4 | new rating: 1481 | ||