Pierce, Daniel
Current rating: 1452
Record: 10-15-1
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 93 | Gray, William (1534) | Won 2-0 | +191472 |
| 3standard | 209 | Helbig, Drew (1789) | Won 2-0 | +241496 |
| 4standard | 140 | Smith, Paige (1526) | Lost 0-2 | -181478 |
| 5standard | 218 | Velazquez Garcia, Andres (1656) | Lost 1-2 | -141464 |
| 6standard | 231 | Snyder, Asa (1758) | Lost 1-2 | -131451 |
| 7standard | 363 | Chelf, Ben (1452) | Won 2-0 | +181469 |
| 8standard | 240 | Brown, Jesse (1517) | Lost 1-2 | -171452 |
| top | average opponent: 1604record: 3-4 | new rating: 1452 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 129 | Tucker, Bruce (1500) | Draw 1-1 | +11415 |
| 2standard | 431 | Finney, Michael (1690) | Won 2-0 | +231438 |
| 3standard | 290 | Costello, Spencer (1390) | Won 2-0 | +171455 |
| 4standard | 152 | Frigon, Luke (1749) | Lost 1-2 | -131442 |
| 5standard | 312 | Martin, Wesley (1465) | Won 2-0 | +191461 |
| 6standard | 197 | Gellert, Kyle (1871) | Won 2-1 | +251486 |
| 7standard | 123 | De Blois, Paul (1609) | Lost 0-2 | -161470 |
| 8standard | 220 | Moss, Stephen (1507) | Lost 0-2 | -171453 |
| top | average opponent: 1598record: 4-3-1 | new rating: 1453 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 131 | Carney, Tatjana (1500) | Lost 1-2 | -171447 |
| 2sealed | 229 | Edmond, Scott (1449) | Won 2-1 | +181465 |
| 3sealed | 261 | Vanwie, Kyle P (1504) | Lost 0-2 | -181447 |
| 4sealed | 352 | Brazzell, Davis (1446) | Lost 1-2 | -181429 |
| 5sealed | 322 | Columbia, Aya (1468) | Lost 1-2 | -171412 |
| 6sealed | 281 | Smith, Bradley (1444) | Won 2-0 | +191431 |
| 7sealed | 221 | Johnson, David (1475) | Won 2-0 | +181449 |
| 8sealed | 173 | Liller, Josh (1496) | Lost 1-2 | -171432 |
| 9sealed | 153 | Blair, Molly (1394) | Lost 1-2 | -181414 |
| top | average opponent: 1464record: 3-6 | new rating: 1414 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 150 | Browning, Amelia (1500) | Lost 0-2 | -181482 |
| 2sealed | 266 | Oliver, Paul H (1483) | Lost 0-2 | -181464 |
| top | average opponent: 1491record: 0-2 | new rating: 1464 | ||