Pierce, Marcus J
Current rating: 1470
Record: 9-11
| Grand Prix Seattle-Tacoma 2012 (DKA limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 137 | Hartman, Neil (1500) | Won 2-1 | +181500 |
| 5sealed | 71 | Shaver, Will (1503) | Won 2-0 | +181518 |
| 6sealed | 12 | Romero, Henry (1589) | Lost 1-2 | -161502 |
| 7sealed | 48 | Phillips, Cedric (1674) | Lost 0-2 | -151487 |
| 8sealed | 134 | Kwong, Kevin (1534) | Lost 0-2 | -171470 |
| top | average opponent: 1560record: 2-3 | new rating: 1470 | ||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 91 | Petterson, David (1500) | Lost 1-2 | -191500 |
| 2extended | 270 | Sooy, James R (1483) | Lost 0-2 | -181482 |
| top | average opponent: 1491record: 0-2 | new rating: 1482 | ||
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 56 | Hodkinson, Shane K (1500) | Won 2-0 | +181524 |
| 2block | 132 | Long, Barron (1518) | Won 2-1 | +181542 |
| 3block | 106 | Anderson, Dann (1538) | Lost 1-2 | -181524 |
| 4block | 94 | Werts, Kevin R (1520) | Won 2-1 | +181542 |
| 5block | 87 | Foster, Tucker (1437) | Won 2-1 | +161558 |
| 6block | 75 | Graham, Geoffrey (1476) | Lost 1-2 | -201538 |
| 7block | 129 | Crossland, Matthew (1447) | Lost 1-2 | -191519 |
| top | average opponent: 1491record: 4-3 | new rating: 1519 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 38 | Ochoa, Georgina M (1500) | Won 2-0 | +181518 |
| 2block | 78 | Shimada, Aron (1518) | Won 2-1 | +181536 |
| 3block | 19 | Downing, Steve (1587) | Lost 1-2 | -171519 |
| 4block | 188 | Schwartz, Conrad (1518) | Won 2-1 | +181537 |
| 5block | 100 | Thompson, Gerry (1768) | Lost 0-2 | -141523 |
| 6block | 127 | Knadler, Johnny (1575) | Lost 0-2 | -171506 |
| top | average opponent: 1578record: 3-3 | new rating: 1506 | ||