Madden, Gregory
Current rating: 1562
Record: 23-20
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 17 | Burkhart, Corey (1841) | Lost 1-2 | -131567 |
| 4standard | 346 | Nallaratnam, Vinashan (1516) | Won 2-0 | +171584 |
| 5standard | 196 | Chanphakeo, William (1499) | Lost 1-2 | -201564 |
| 6standard | 348 | Muller, Paul (1476) | Won 2-1 | +171581 |
| 7standard | 144 | Gawtrey, Kyle (1534) | Lost 0-2 | -191562 |
| top | average opponent: 1573record: 2-3 | new rating: 1562 | ||
| Grand Prix Ottawa 2014 (KTK limited) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 231 | Charlebois, Leonard (1518) | Won 2-0 | +171589 |
| 3sealed | 139 | Jaramillo, Blaven (1446) | Won 2-1 | +151604 |
| 4sealed | 114 | Victor, Adam (1505) | Lost 1-2 | -191585 |
| 5sealed | 207 | Plamondon, Brandon (1518) | Lost 0-2 | -201565 |
| 6sealed | 265 | Helguero, Samuel (1525) | Won 2-0 | +181583 |
| 7sealed | 231 | Lapierre, Eric (1539) | Won 2-0 | +171600 |
| 8sealed | 102 | Adams, Michael (1495) | Lost 0-2 | -201580 |
| top | average opponent: 1507record: 4-3 | new rating: 1580 | ||
| Grand Prix Montreal 2014 (BNG limited) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 214 | Detmer, Jameson (1456) | Won 2-0 | +161608 |
| 3sealed | 214 | Traikov, Erik (1579) | Lost 1-2 | -191589 |
| 4sealed | 214 | Prevost, Francois (1492) | Won 2-1 | +171606 |
| 5sealed | 214 | Arella, Alex (1546) | Won 2-1 | +161622 |
| 6sealed | 214 | Cuneo, Andrew (1970) | Lost 0-2 | -111611 |
| 7sealed | 217 | Matthews, Mark (1548) | Lost 1-2 | -201591 |
| 8sealed | 214 | Matteau, Jean-Philippe (1515) | Lost 1-2 | -191572 |
| top | average opponent: 1587record: 3-4 | new rating: 1572 | ||
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 78 | Allen, Travis (1486) | Won 2-1 | +171549 |
| 4sealed | 78 | Howden, Jason (1724) | Won 2-0 | +211570 |
| 5sealed | 28 | Lee, Jeffrey (1451) | Won 2-0 | +161586 |
| 6sealed | 78 | Hebert, David (1591) | Lost 0-2 | -181568 |
| 7sealed | 78 | Cheng, William (1579) | Won 2-0 | +181586 |
| 8sealed | 78 | Wong, Stats (1590) | Lost 0-2 | -181568 |
| 9sealed | 70 | Roe, Stephen (1573) | Won 2-0 | +181586 |
| 10draft | 46 | McGill, Matt (1604) | Won 2-1 | +191605 |
| 11draft | 79 | Ratajczak, Matthew (1689) | Lost 1-2 | -171588 |
| 12draft | 74 | Dahmer, TJ (1597) | Lost 1-2 | -181570 |
| 13draft | 87 | Flink, Chris (1639) | Won 2-0 | +191589 |
| 14draft | 9 | Blum, Tyler (1716) | Won 2-1 | +211610 |
| 15draft | 54 | MacFarlane, Kate (1640) | Lost 0-1 | -181592 |
| top | average opponent: 1606record: 8-5 | new rating: 1592 | ||
| Grand Prix Calgary 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 28 | Theologus, Jonathan (1537) | Lost 1-2 | -171483 |
| 5standard | 63 | Bae, Tony (1535) | Lost 1-2 | -171466 |
| 6standard | 128 | Schilds, Carston (1516) | Won 2-1 | +191485 |
| 7standard | 103 | Theriault, Mason (1540) | Won 2-0 | +191504 |
| 8standard | 77 | Claypool, Brennan (1556) | Won 2-1 | +181522 |
| 9standard | 46 | Itani, Hiroshi (1568) | Won 2-0 | +191541 |
| 10standard | 30 | Cassels, Iain (1551) | Won 2-1 | +181559 |
| 11standard | 21 | Selk, Patrick (1715) | Lost 1-2 | -151544 |
| 12standard | 32 | Acosta, Luis M (1738) | Won 2-0 | +221566 |
| 13standard | 14 | Crossman, Cody (1634) | Lost 0-2 | -171549 |
| 14standard | 24 | Leedham, Bryan (1576) | Lost 1-2 | -171532 |
| top | average opponent: 1588record: 6-5 | new rating: 1532 | ||