Stamness, Matthew
Current rating: 1722 (#5210)
Record: 71-53-3
Grand Prix Kansas City 2008Grand Prix Minneapolis 2009Grand Prix Kansas City 2011Grand Prix Orlando 2014Grand Prix Las Vegas 2015 (2)Grand Prix Madison 2015Grand Prix Atlanta 2015Grand Prix Atlanta 2016Grand Prix Milwaukee 2016Grand Prix Phoenix 2017Grand Prix Las Vegas 2018 (limited)Grand Prix Minneapolis 2018Grand Prix Madison 2019Grand Prix Seattle 2019MagicCon Las Vegas 2023 Limited Open
| MagicCon Las Vegas 2023 Limited Open (WOE limited) | starting rating: 1759 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3577 | Lightning, Dakota (1500) | Won 2-0 | +141773 |
| 2sealed | 3158 | Fagan, Christian (1636) | Lost 1-2 | -211752 |
| 3sealed | 3257 | Brower, Wesley (1546) | Lost 1-2 | -221730 |
| 4sealed | 3481 | Rodriguez, Lorenzo (1488) | Won 2-1 | +141744 |
| 5sealed | 3273 | Pemberton, Scott (1507) | Lost 1-2 | -221722 |
| top | average opponent: 1536record: 2-3 | new rating: 1722 | ||
| Grand Prix Seattle 2019 (MH1 limited) | starting rating: 1762 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 310 | Sisco, Riley (1500) | Won 2-0 | +141776 |
| A2sealed | 286 | Meinershagen, Riley (1458) | Won 2-1 | +121788 |
| A3sealed | 56 | Rohaninejad, Morteza (1537) | Lost 0-2 | -221766 |
| A4sealed | 199 | Ulanov, Denis (1981) | Won 2-1 | +211787 |
| A5sealed | 97 | Lewis VII, Earl (1509) | Lost 0-2 | -231764 |
| B1sealed | 663 | Wolters, Mark (1500) | Won 2-1 | +141778 |
| B2sealed | 393 | Hammerschmidt, Nick (1455) | Won 2-1 | +121790 |
| B3sealed | 39 | Ocampo, Neil (1622) | Lost 0-2 | -211769 |
| B4sealed | 188 | Brown, Izabel (1579) | Won 2-1 | +151784 |
| B5sealed | 198 | Cao, Timothy (1519) | Lost 1-2 | -231761 |
| B6sealed | 305 | Broman, Tim (1698) | Won 2-1 | +171778 |
| B7sealed | 160 | Swailes, Michael (1745) | Lost 1-2 | -191759 |
| top | average opponent: 1592record: 7-5 | new rating: 1759 | ||
| Grand Prix Madison 2019 (WAR limited) | starting rating: 1782 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 234 | Olejniczak, Nick (1500) | Won 2-1 | +131795 |
| 2sealed | 57 | Fonseka, Aruna (1522) | Won 2-0 | +131808 |
| 3sealed | 206 | Sentel, Kyle (1650) | Draw 1-1 | -31805 |
| 4sealed | 124 | Roy, Anjon (1607) | Lost 0-2 | -211784 |
| 5sealed | 213 | Swanson, Casey (1603) | Lost 0-2 | -221762 |
| top | average opponent: 1576record: 2-2-1 | new rating: 1762 | ||
| Grand Prix Minneapolis 2018 (M19 limited) | starting rating: 1634 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 184 | Sowell, Adam (1601) | Won 2-0 | +181652 |
| 2sealed | 123 | Allhiser, Bradley (1518) | Won 2-0 | +151667 |
| 3sealed | 178 | Barkon, Daniel (1913) | Won 2-1 | +231690 |
| 4sealed | 42 | Levonian, Zachary (1554) | Won 2-0 | +151705 |
| 5sealed | 64 | Richey, Richard (1739) | Won 2-1 | +191724 |
| 6sealed | 6 | Locke, Steve (2037) | Lost 0-2 | -131711 |
| 7sealed | 36 | Jones, Luke (1842) | Won 2-0 | +211732 |
| 8sealed | 27 | Markson, Drew (1720) | Won 2-1 | +171749 |
| 9sealed | 17 | Carvalho, Marcio (2214) | Won 2-1 | +261775 |
| 10draft | 253 | Loeb, Davy (1910) | Won 2-0 | +211796 |
| 11draft | 315 | Ugale, Ashwin (1857) | Lost 1-2 | -171779 |
| 12draft | 315 | Gagliardi, Joe (1739) | Lost 1-2 | -191760 |
| 13draft | 256 | McKee, Thomas (1758) | Lost 0-2 | -181742 |
| 14draft | 256 | Bachaud, Louis (1942) | Won 2-0 | +221764 |
| 15draft | 256 | Gareau, Philippe (1769) | Won 2-1 | +181782 |
| top | average opponent: 1807record: 11-4 | new rating: 1782 | ||
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1645 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1301 | Nishikawa, Shoma (1480) | Won 2-1 | +151660 |
| 2sealed | 1304 | Banuelos, Juan (1497) | Won 2-0 | +151675 |
| 3sealed | 1333 | Shields, True (1613) | Lost 1-2 | -191656 |
| 4sealed | 1356 | Mendez, David (1538) | Won 2-1 | +151671 |
| 5sealed | 1342 | Martinez, Steven (1699) | Lost 0-2 | -171654 |
| 6sealed | 1346 | Heath, Joel (1566) | Lost 0-2 | -201634 |
| top | average opponent: 1566record: 3-3 | new rating: 1634 | ||
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1718 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 82 | Taran, Nicole (1516) | Lost 0-2 | -211697 |
| 2sealed | 357 | Black, Benjamin (1445) | Lost 1-2 | -231674 |
| 3sealed | 513 | Orosz, Thomas (1464) | Won 2-0 | +141688 |
| 4sealed | 451 | Galloway, Joshua (1455) | Lost 1-2 | -221666 |
| 5sealed | 439 | Reagan, Isaac (1465) | Lost 1-2 | -211645 |
| top | average opponent: 1469record: 1-4 | new rating: 1645 | ||
| Grand Prix Milwaukee 2016 (KLD limited) | starting rating: 1783 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 348 | Stickrod, Jeff (1503) | Lost 1-2 | -231760 |
| 2sealed | 334 | Warren, Joseph (1395) | Lost 0-2 | -251735 |
| 3sealed | 552 | Ward, Sean (1463) | Won 2-0 | +131748 |
| 4sealed | 451 | Arnold, Chris (1596) | Lost 1-2 | -201728 |
| 5sealed | 537 | Prueher, Adam (1413) | Won 2-1 | +121740 |
| 6sealed | 427 | Borgerding, Christopher (1527) | Lost 0-2 | -221718 |
| top | average opponent: 1483record: 2-4 | new rating: 1718 | ||
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1682 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 953 | Gore, Julian (1500) | Draw 1-1 | -31679 |
| 2sealed | 905 | Cox, Nelson (1499) | Won 2-0 | +141693 |
| 3sealed | 891 | Murphy, Gareth (1469) | Won 2-0 | +141707 |
| 4sealed | 714 | Douglass, John (1684) | Won 2-1 | +181725 |
| 5sealed | 616 | Cox, Patrick (1915) | Lost 0-2 | -151710 |
| 6sealed | 755 | Russi, Michael (1645) | Won 2-0 | +171727 |
| 7sealed | 661 | Kessler, Alex (1527) | Lost 0-2 | -211706 |
| 8sealed | 773 | Pledger, Dustin (1544) | Won 2-1 | +151721 |
| 9sealed | 687 | Atkins, Benjamin (1555) | Won 2-1 | +151736 |
| 10draft | 1027 | Yu, Jarvis (1924) | Won 2-0 | +211757 |
| 11draft | 1036 | Douglass, John (1726) | Won 2-1 | +171774 |
| 12draft | 885 | Hristis, Michael (1787) | Won 2-0 | +191793 |
| 13draft | 980 | Wang, Yidong (1811) | Lost 0-2 | -181775 |
| 14draft | 965 | Severa, Matt (1938) | Won 2-0 | +211796 |
| 15draft | 880 | Ayers, Brandon (2052) | Lost 0-2 | -131783 |
| top | average opponent: 1705record: 10-4-1 | new rating: 1783 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 581 | Day, Andrew (1500) | Won 2-0 | +171572 |
| 2sealed | 139 | Cammack, Franklin (1553) | Won 2-0 | +181590 |
| 3sealed | 369 | Middleton, Vernon (1500) | Won 2-0 | +161606 |
| 4sealed | 80 | Greeson, Kevin (1553) | Lost 0-2 | -191587 |
| 5sealed | 355 | Jeong, Galen (1536) | Lost 1-2 | -191568 |
| 6sealed | 536 | Hartness, John (1545) | Won 2-0 | +181586 |
| 7sealed | 407 | Angeles, Victor (1507) | Won 2-0 | +171603 |
| 8sealed | 105 | Punch, Taylor (1558) | Won 2-0 | +171620 |
| 9sealed | 145 | Bevis, Colin (1718) | Won 2-0 | +201640 |
| 10draft | 107 | Mack, Shaun (1697) | Won 2-0 | +191659 |
| 11draft | 57 | Simmons, Caleb (1632) | Lost 1-2 | -191640 |
| 12draft | 26 | Eslami, Curtis (1664) | Lost 1-2 | -171623 |
| 13draft | 108 | Kohrs, Brandon (1677) | Won 2-1 | +191642 |
| 14draft | 94 | Fei, Xinyu (1733) | Won 2-0 | +191661 |
| 15draft | 98 | Esposito, John (1812) | Won 2-0 | +211682 |
| top | average opponent: 1612record: 11-4 | new rating: 1682 | ||
| Grand Prix Madison 2015 (BFZ limited) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 299 | Evangelista, Denis (1500) | Won 2-1 | +161596 |
| 2sealed | 267 | Hochman, Will (1553) | Lost 1-2 | -191577 |
| 3sealed | 432 | Dittmann, Aaron (1504) | Won 2-0 | +171594 |
| 4sealed | 291 | Miller, Corey (1516) | Lost 1-2 | -191575 |
| 5sealed | 529 | Hanson, Steven (1500) | Lost 1-2 | -201555 |
| top | average opponent: 1515record: 2-3 | new rating: 1555 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 146 | Prawdzik, Nathaniel (1622) | Won 2-0 | +201536 |
| 4sealed | 18 | Crimin, Kevin (1462) | Lost 1-2 | -191517 |
| 5sealed | 187 | Colella, Massimiliano (1523) | Won 2-0 | +181535 |
| 6sealed | 31 | Marunde, Lincoln (1518) | Won 2-0 | +171552 |
| 7sealed | 58 | Curtiss, Peter (1574) | Won 2-1 | +191571 |
| 8sealed | 40 | Allen, Jonathan (1707) | Won 2-1 | +201591 |
| 9sealed | 10 | McKenzie, E (1593) | Lost 0-2 | -181573 |
| 10draft | 100 | Elias, Dustin (1549) | Won 2-0 | +181591 |
| 11draft | 123 | Delliskave, Nick (1572) | Won 2-0 | +181609 |
| 12draft | 18 | Peternell, Raymond (1641) | Lost 1-2 | -181591 |
| 13draft | 165 | Yu, Ben (1882) | Lost 1-2 | -131578 |
| 14draft | 155 | Li, Lenny (1642) | Lost 0-2 | -171561 |
| 15draft | 157 | Doo, Godwin (1571) | Won 2-0 | +191580 |
| top | average opponent: 1604record: 8-5 | new rating: 1580 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Scalzo, Andrew (1615) | Lost 0-2 | -171521 |
| 2sealed | 413 | Godoy, Justin (1482) | Won 2-0 | +171538 |
| 3sealed | 233 | Newman, Alex [USA] (1500) | Won 2-0 | +181556 |
| 4sealed | 275 | Mooney, Peter (1567) | Lost 0-2 | -181538 |
| 5sealed | 241 | Michael, Theresa (1336) | Lost 0-2 | -221516 |
| top | average opponent: 1500record: 2-3 | new rating: 1516 | ||
| Grand Prix Kansas City 2011 (NPH limited) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 68 | Sconci, Jacob (1502) | Won 2-1 | +181529 |
| 3sealed | 110 | Schuler, Jeff (1534) | Won 2-1 | +181547 |
| 4sealed | 64 | Kozal, Tyler (1599) | Draw 1-1 | +11548 |
| 5sealed | 71 | Johnson, Anthony (1534) | Won 2-0 | +171565 |
| 6sealed | 33 | Durward, Caleb (1769) | Lost 0-2 | -141551 |
| 7sealed | 89 | Wellons, Christopher J (1526) | Lost 1-2 | -181533 |
| 8sealed | 148 | Adams, Josh (1523) | Won 2-1 | +171550 |
| 9sealed | 102 | Landriz, Erik (1839) | Lost 0-2 | -121538 |
| top | average opponent: 1603record: 4-3-1 | new rating: 1538 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 228 | Marier, Trent (1518) | Won 2-0 | +191486 |
| 3sealed | 167 | Bearmon, Michael (1518) | Lost 1-2 | -171469 |
| 4sealed | 216 | Pinter, Jeremy (1690) | Won 2-1 | +221491 |
| 5sealed | 110 | Munden, Derek (1520) | Lost 0-2 | -181473 |
| 6sealed | 196 | Starr, Anh Thai (1484) | Won 2-1 | +181491 |
| 7sealed | 184 | Chafe, Nathaniel (1495) | Won 2-1 | +191510 |
| 8sealed | 62 | Montgomery, Kyle (1576) | Won 2-0 | +191529 |
| 9sealed | 74 | Miller, Chris D (1528) | Lost 0-2 | -181511 |
| top | average opponent: 1541record: 5-3 | new rating: 1511 | ||
| Grand Prix Kansas City 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 146 | Swierczek, Justin (1643) | Lost 0-2 | -151485 |
| 3sealed | 192 | Stockman, Aaron J (1501) | Won 2-1 | +181503 |
| 4sealed | 116 | Chaney, Nolan (1508) | Lost 0-2 | -181485 |
| 5sealed | 227 | Nigh, John (1501) | Lost 0-2 | -181467 |
| top | average opponent: 1538record: 1-3 | new rating: 1467 | ||