Dufour, Marc
Current rating: 1624
Record: 20-16-1 (GP) / 9-7 (professional)
| Grand Prix Montreal 2014 (BNG limited) | starting rating: 1615 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 151 | Gurevych, William (1505) | Lost 0-2 | -201595 |
| 2sealed | 401 | Mullin, Samuel (1482) | Won 2-0 | +161611 |
| 3sealed | 291 | Langevin, Marjorie (1466) | Won 2-1 | +161627 |
| 4sealed | 415 | Bilodeau, Sebastian (1511) | Won 2-0 | +161643 |
| 5sealed | 1 | Beaulieu, Marc (1475) | Won 2-1 | +141657 |
| 6sealed | 155 | Genna, Peter (1563) | Lost 1-2 | -191638 |
| 7sealed | 103 | Fleurant, Julien (1511) | Won 2-0 | +151653 |
| 8sealed | 80 | Pigeon, Jeffrey (1495) | Won 2-1 | +161669 |
| 9sealed | 104 | Ho, Eric (1571) | Won 2-1 | +161685 |
| 10draft | 904 | Johnson, Courtney (1617) | Won 2-1 | +171702 |
| 11draft | 945 | Sun, Blake Chuan Xiang (1613) | Lost 0-2 | -201682 |
| 12draft | 956 | Parker, Gregory (1605) | Lost 1-2 | -191663 |
| 13draft | 954 | Gian, David (1565) | Lost 1-2 | -201643 |
| 14draft | 943 | Cournoyer-Michel, Mael (1588) | Lost 0-2 | -191624 |
| top | average opponent: 1540record: 8-6 | new rating: 1624 | ||
| Grand Prix Quebec City 2013 (GTC standard) | starting rating: 1609 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 188 | Maini, Quentin (1500) | Lost 0-2 | -201589 |
| 2standard | 289 | Meloney, Rainner (1481) | Won 2-0 | +171606 |
| 3standard | 235 | Brault, Mathieu (1553) | Lost 1-2 | -191587 |
| 4standard | 347 | Lalancette, Micha (1500) | Won 2-0 | +161603 |
| 5standard | 229 | Lacelle, Olivier 8101 (1501) | Won 2-1 | +161619 |
| 6standard | 219 | Gareau, Philippe (1654) | Won 2-1 | +191638 |
| 7standard | 120 | Kavanagh, Kris (1597) | Lost 1-2 | -191619 |
| 8standard | 159 | Parent, Jimmy (1516) | Lost 1-2 | -201599 |
| 9standard | 195 | Lagace, Francois 6010 (1498) | Won 2-0 | +161615 |
| top | average opponent: 1533record: 5-4 | new rating: 1615 | ||
| Grand Prix Montreal 2011 (M12 limited) | starting rating: 1614 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 381 | Mascioli, Chris (1537) | Won 2-0 | +161630 |
| 5sealed | 377 | Mercier, Frederic (1575) | Lost 0-2 | -191611 |
| 6sealed | 380 | Liquidano, Jairo (1580) | Lost 1-2 | -181593 |
| 7sealed | 441 | Cormier, Ryan D (1542) | Won 2-0 | +171610 |
| 8sealed | 392 | Teskey, Donny R (1576) | Won 2-1 | +171627 |
| 9sealed | 375 | Dill, Keegan D (1634) | Lost 1-2 | -181609 |
| top | average opponent: 1574record: 3-3 | new rating: 1609 | ||
| Pro Tour San Juan 2010 (Zendikar block) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 142 | Bayar, Taryk (1510) | Lost 0-2 | -181517 |
| 2block | 178 | Riley, Jordan (1576) | Won 2-0 | +191536 |
| 3block | 72 | Bigford, Roland (1427) | Won 2-0 | +161552 |
| 4block | 65 | Kolos, John (1853) | Won 2-0 | +231575 |
| 5block | 45 | Joens, Klaus (1887) | Lost 1-2 | -121563 |
| 6draft | 94 | Vieren, Peter (1940) | Won 2-1 | +251588 |
| 7draft | 153 | Calcano, Christian (1690) | Won 2-0 | +191607 |
| 8draft | 42 | da Costa Cabral, Bernardo (1662) | Won 2-1 | +191626 |
| 9draft | 44 | Sperling, Matthew (1868) | Won 2-0 | +231649 |
| 10draft | 12 | Neeman, Jeremy (1733) | Lost 0-2 | -171632 |
| 11draft | 23 | Neal, Stephen (1699) | Won 2-0 | +191651 |
| 12block | 18 | Snijdewind, Ruben (1849) | Lost 1-2 | -141637 |
| 13block | 25 | Peebles-Mundy, Benjamin (1892) | Lost 1-2 | -131624 |
| 14block | 40 | Winterhalter, Benjamin (1601) | Lost 1-2 | -191605 |
| 15block | 46 | West, Alexander (1837) | Lost 0-2 | -141591 |
| 16block | 46 | Phillips, Cedric (1846) | Won 2-1 | +231614 |
| top | average opponent: 1742record: 9-7 | new rating: 1614 | ||
| Grand Prix Montreal 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 164 | Jennings, Nat (1518) | Won 2-0 | +181518 |
| 3block | 38 | Jones, Donny (1537) | Draw 1-1 | +11519 |
| 4block | 105 | LaRose, Justin (1576) | Won 2-1 | +191538 |
| 5block | 50 | Ruess, Jan (1929) | Lost 1-2 | -121526 |
| 6block | 108 | Wafo-Tapa, Guillaume (1983) | Lost 0-2 | -101516 |
| 7block | 146 | Boehm, Greg (1553) | Won 2-0 | +191535 |
| 8block | 100 | Bonneville, Martin (1555) | Won 0-0 | +181553 |
| 9block | 72 | Caron, Antoine (1563) | Lost 0-0 | -181535 |
| top | average opponent: 1652record: 4-3-1 | new rating: 1535 | ||