DeMatties, Michelangelo
Current rating: 1755 (#3655)
Record: 33-18
| Grand Prix New Jersey 2020 (THB limited) | starting rating: 1756 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 308 | Schifano, Frank (1500) | Won 2-0 | +141770 |
| 2sealed | 29 | Smith, Alexander (1574) | Won 2-1 | +141784 |
| 3sealed | 60 | Pham, Hoang Ha (1533) | Lost 1-2 | -221762 |
| 4sealed | 196 | Ziet, Kevin (1703) | Won 2-1 | +171779 |
| 5sealed | 247 | Schoenbrun, Ben (1712) | Won 2-1 | +171796 |
| 6sealed | 162 | Pardee, Carolyn (1718) | Lost 0-2 | -201776 |
| 7sealed | 140 | Lichtenberg, Steve (1601) | Lost 1-2 | -211755 |
| top | average opponent: 1620record: 4-3 | new rating: 1755 | ||
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1641 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 157 | Brundage, David (1421) | Won 2-0 | +141655 |
| 2sealed | 285 | Casselman, Jeffrey (1523) | Won 2-1 | +161671 |
| 3sealed | 309 | Santos, Josh (1481) | Won 2-1 | +141685 |
| 4sealed | 90 | Collier-Ridge, Owen (1614) | Won 2-0 | +171702 |
| 5sealed | 61 | Betesh, Ralph (1795) | Won 2-1 | +201722 |
| 6sealed | 12 | Giles, Devon (1797) | Lost 1-2 | -171705 |
| 7sealed | 56 | Unterman, Matthew (1509) | Won 2-0 | +151720 |
| 8sealed | 44 | Wasson, John (1820) | Won 2-0 | +191739 |
| 9sealed | 24 | Zhang, Boyang (1621) | Lost 1-2 | -201719 |
| 10draft | 114 | Mavis, Alexander (1609) | Lost 1-2 | -201699 |
| 11draft | 130 | Abrams, Daniel (1772) | Lost 1-2 | -161683 |
| 12draft | 88 | Hall, David [CAN] (1574) | Won 2-1 | +161699 |
| 13draft | 55 | Robinson, Connor (1805) | Won 2-1 | +191718 |
| 14draft | 112 | Wang, Haotian (1792) | Won 2-1 | +201738 |
| 15draft | 22 | Relihan, Ian (1773) | Won 2-0 | +181756 |
| top | average opponent: 1660record: 11-4 | new rating: 1756 | ||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1668 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 43 | Postlethwait, William (1727) | Lost 0-2 | -171651 |
| 4standard | 155 | Rocco, Craig (1527) | Won 2-1 | +161667 |
| 5standard | 97 | Lutkie, Chaz A (1538) | Lost 1-2 | -201647 |
| 6standard | 218 | Leduc, Logan (1518) | Won 2-1 | +151662 |
| 7standard | 166 | Carson, Doug (1535) | Lost 0-2 | -201642 |
| 8standard | 145 | Chernoff, Adam (1705) | Lost 1-2 | -171625 |
| 9standard | 113 | Murray, Paul W (1501) | Won 2-1 | +161641 |
| top | average opponent: 1579record: 3-4 | new rating: 1641 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 560 | Usman, Nick (1518) | Won 2-0 | +181557 |
| 3sealed | 476 | Phillips, Cedric (1753) | Won 2-1 | +211578 |
| 4sealed | 475 | Banfield, Brendan (1505) | Won 2-1 | +171595 |
| 5sealed | 437 | Metcalf, Scott (1570) | Won 2-1 | +181613 |
| 6sealed | 404 | Vidugiris, Gaudenis (1833) | Lost 0-2 | -141599 |
| 7sealed | 428 | Seder, Robert (1662) | Lost 0-2 | -171582 |
| 8sealed | 448 | Morawski, Jonathan (1707) | Won 2-0 | +201602 |
| 9sealed | 435 | Morgan, Will W (1541) | Won 2-1 | +171619 |
| 10draft | 79 | Turtenwald, Owen (1868) | Lost 0-2 | -141605 |
| 11draft | 83 | Lebedowicz, Osyp (1906) | Won 2-1 | +241629 |
| 12draft | 74 | Cormier, Francis (1688) | Won 2-0 | +191648 |
| 13draft | 20 | Williams, David A (1827) | Lost 0-2 | -151633 |
| 14draft | 38 | Pargh, William (1587) | Won 2-1 | +171650 |
| 15draft | 52 | Tharmaratnam, Samuel (1661) | Won 2-0 | +181668 |
| top | average opponent: 1687record: 10-4 | new rating: 1668 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 153 | Moore, Timothy S (1500) | Lost 0-2 | -181482 |
| 3extended | 269 | Duterte, Daniel (1502) | Won 2-0 | +181500 |
| 4extended | 224 | Rasmussen, Ben (1603) | Lost 0-2 | -161484 |
| 5extended | 257 | Wludyka, Joshua (1468) | Won 2-1 | +181502 |
| 6extended | 164 | Kunkel, Jeremy (1565) | Won 2-0 | +191521 |
| 7extended | 135 | Bartolomei, Iain (1515) | Lost 0-2 | -181503 |
| 8extended | 191 | McLean, Drew (1577) | Won 2-1 | +191522 |
| 9extended | 121 | Wilson, Anthony (1465) | Won 2-0 | +171539 |
| top | average opponent: 1524record: 5-3 | new rating: 1539 | ||