McCowan, James
Current rating: 1451
Record: 8-11-1
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 232 | Di Costanzo, Alex (1500) | Lost 0-2 | -171449 |
| 2sealed | 625 | Boyer, Benjamin (1482) | Won 2-0 | +181467 |
| 3sealed | 407 | Carr, Ezra (1568) | Lost 0-2 | -161451 |
| top | average opponent: 1517record: 1-2 | new rating: 1451 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1832 | Gust, Jason (1500) | Won 2-0 | +191488 |
| 2legacy | 1690 | Morun, Bogdan (1518) | Draw 1-1 | 01488 |
| 3legacy | 1707 | Keller, Michael (1401) | Won 2-0 | +171505 |
| 4legacy | 1544 | Lee, Christopher (1325) | Lost 1-2 | -211484 |
| 5legacy | 1696 | Crowder, Daniel (1518) | Lost 1-2 | -181466 |
| top | average opponent: 1452record: 2-2-1 | new rating: 1466 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 871 | De Marco, Jesse (1480) | Lost 0-2 | -181464 |
| 2modern | 1067 | Mahoney, Bryan (1449) | Won 2-0 | +171481 |
| 3modern | 1014 | Ghesquiere, Michael (1500) | Won 2-0 | +191500 |
| 4modern | 882 | Echeverria Paredes, Jose Luis (1805) | Lost 1-2 | -131487 |
| 5modern | 1118 | Salveson, Eric G (1496) | Lost 1-2 | -181469 |
| top | average opponent: 1546record: 2-3 | new rating: 1469 | ||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 94 | Henry, John (1446) | Lost 0-2 | -191481 |
| 2legacy | 562 | Hitaffer, Thomas (1483) | Won 2-0 | +181499 |
| 3legacy | 626 | Krulewitz, Emily (1484) | Lost 1-2 | -181481 |
| 4legacy | 658 | Marshall, Bob (1545) | Lost 0-2 | -171464 |
| 5legacy | 710 | Popal, Wahid (1463) | Won 2-0 | +181482 |
| 6legacy | 589 | Spano, Greggory (1498) | Won 2-0 | +181500 |
| 7legacy | 417 | Lee, Matthew S. (1468) | Lost 1-2 | -181482 |
| top | average opponent: 1484record: 3-4 | new rating: 1482 | ||