Howatt, Shane
Current rating: 1596
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 261 | Miller, Alex [CAN] (1417) | Won 2-0 | +161562 |
| 2sealed | 183 | Cowley, William (1518) | Draw 1-1 | -11561 |
| 3sealed | 244 | Morin, Christopher (1534) | Won 2-0 | +181579 |
| 4sealed | 128 | Johnston, Chad (1522) | Won 2-0 | +171596 |
| 5sealed | 63 | Moore, James [CAN] (1538) | Won 2-0 | +161612 |
| 6sealed | 30 | Chenard, Francois (1685) | Won 2-1 | +201632 |
| 7sealed | 15 | Rhodes, Austin (1661) | Lost 1-2 | -181614 |
| 8sealed | 52 | Pruitt, Travoy (1571) | Lost 0-2 | -181596 |
| top | average opponent: 1555record: 5-2-1 | new rating: 1596 | ||
| Grand Prix Montreal 2016 (EMN limited) | starting rating: 1566 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2426 | McCurdy, Anna (1500) | Won 2-0 | +171583 |
| 2sealed | 2073 | Steinfeld, Alexander (1620) | Lost 0-2 | -171566 |
| 3sealed | 2306 | Auterhoff, Hayden (1480) | Lost 0-0 | -201546 |
| 4sealed | 2494 | Hughes, Tim [CAN] (1470) | Won 2-0 | +171563 |
| 5sealed | 2343 | Bergeron, Julien (1634) | Lost 1-2 | -171546 |
| top | average opponent: 1541record: 2-3 | new rating: 1546 | ||
| Grand Prix Montreal 2015 (DTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Frank, Aubrey (1426) | Won 2-1 | +171517 |
| 2sealed | 188 | Rivard Haustrate, Guillaume (1517) | Won 2-0 | +181535 |
| 3sealed | 184 | La Forest, Adam (1541) | Won 2-1 | +181553 |
| 4sealed | 107 | Jetha, David (1729) | Won 2-0 | +211574 |
| 5sealed | 42 | Bain, Scott (1625) | Won 2-1 | +191593 |
| 6sealed | 25 | Elenbogen, Andrew (1963) | Lost 1-2 | -121581 |
| 7sealed | 80 | Blanchette, Jamie (1794) | Lost 0-2 | -141567 |
| 8sealed | 135 | Jaroszonek, Stefan (1557) | Won 2-0 | +181585 |
| 9sealed | 111 | Paske, Logan (1555) | Lost 0-2 | -191566 |
| top | average opponent: 1634record: 6-3 | new rating: 1566 | ||