Pierce, David M
Current rating: 1545
Record: 31-32
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1585 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 401 | Moore, Spencer (1500) | Lost 0-2 | -191566 |
| 2modern | 505 | Beck, Justin (1572) | Won 2-1 | +181584 |
| 3modern | 422 | Boyett, Colin (1501) | Lost 1-2 | -201564 |
| 4modern | 459 | Clingan, Alex (1478) | Lost 0-2 | -191545 |
| top | average opponent: 1513record: 1-3 | new rating: 1545 | ||
| Grand Prix Dallas-Fort Worth 2018 (DOM limited) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 210 | Yasui, Benjamin (1654) | Won 2-0 | +211528 |
| 4sealed | 103 | Jottar, Francisco (1554) | Won 2-1 | +181546 |
| 5sealed | 15 | Henderson, Bryce (1634) | Won 2-1 | +201566 |
| 6sealed | 23 | Molina, Wilberto (1695) | Won 2-1 | +201586 |
| 7sealed | 7 | Kim, Cynic (1819) | Won 2-1 | +221608 |
| 8sealed | 5 | Dobbin, Jack (2053) | Lost 0-2 | -101598 |
| 9sealed | 21 | Lannan, Jason (1727) | Won 2-1 | +201618 |
| 10draft | 86 | Ayers, Brandon (1879) | Won 2-1 | +231641 |
| 11draft | 28 | Craddock, William (1968) | Lost 0-2 | -121629 |
| 12draft | 88 | Hong, Jeff (1615) | Lost 1-2 | -181611 |
| 13draft | 5 | Black, Samuel (1994) | Lost 1-2 | -121599 |
| 14draft | 5 | Neal, Stephen (1836) | Lost 1-2 | -141585 |
| top | average opponent: 1786record: 7-5 | new rating: 1585 | ||
| Grand Prix Dallas-Fort Worth 2016 (modern) | starting rating: 1549 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 170 | Sherman, Anthony (1449) | Won 2-1 | +161565 |
| 4modern | 9 | Blake, Paul (1470) | Lost 0-2 | -201545 |
| 5modern | 207 | Young, David (1512) | Won 2-0 | +171562 |
| 6modern | 87 | Waller, Ryan (1536) | Lost 0-2 | -181544 |
| 7modern | 408 | Crowe, Joshua (1513) | Lost 1-2 | -191525 |
| 8modern | 475 | Estrada, Franco (1518) | Lost 0-2 | -181507 |
| top | average opponent: 1500record: 2-4 | new rating: 1507 | ||
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 183 | Yee, David (1520) | Won 2-1 | +171580 |
| 2standard | 106 | Wong, Patrick (1617) | Won 2-0 | +191599 |
| 3standard | 124 | Botis, Juan Carlos (1555) | Lost 1-2 | -191580 |
| 4standard | 543 | Baker, Sam [USA] (1510) | Won 2-0 | +171597 |
| 5standard | 114 | Martinez, Rodrigo (1462) | Lost 1-2 | -211576 |
| 6standard | 385 | Duke, Reid (2188) | Lost 0-2 | -81568 |
| 7standard | 519 | Small, Jackson (1487) | Lost 0-2 | -191549 |
| top | average opponent: 1620record: 3-4 | new rating: 1549 | ||
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 55 | King, Mason (1644) | Won 2-1 | +201558 |
| 2modern | 161 | Sullivan, Benjamin (1502) | Won 2-1 | +171575 |
| 3modern | 201 | Summers, Marshall (1490) | Won 0-0 | +171592 |
| 4modern | 115 | Maynard, Pascal (1927) | Lost 1-2 | -131579 |
| 5modern | 155 | Docherty, Nathan (1519) | Lost 0-2 | -191560 |
| 6modern | 345 | Reeves, Philip (1489) | Won 2-0 | +171577 |
| 7modern | 238 | Hager, Stephen (1782) | Lost 0-2 | -141563 |
| top | average opponent: 1622record: 4-3 | new rating: 1563 | ||
| Grand Prix Dallas-Fort Worth 2015 (ORI limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 288 | Wilson, Jacob [USA] (1626) | Won 2-0 | +201535 |
| 2sealed | 355 | Tate, Jasonn (1648) | Lost 0-2 | -161519 |
| 3sealed | 610 | Russell, Ronnie (1470) | Won 2-1 | +171536 |
| 4sealed | 398 | Cragnoline, Peter (1602) | Lost 1-2 | -161520 |
| 5sealed | 362 | Stevens, Todd (1541) | Won 2-0 | +181538 |
| 6sealed | 316 | Steele, Michael (1540) | Won 2-0 | +181556 |
| 7sealed | 147 | Busby, Dalton (1568) | Lost 0-2 | -181538 |
| top | average opponent: 1571record: 4-3 | new rating: 1538 | ||
| Grand Prix Dallas-Fort Worth 2013 (THS standard) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 324 | Tran, Minh (1719) | Lost 1-2 | -141480 |
| 2standard | 351 | Lo, Andrew (1484) | Lost 1-2 | -181462 |
| 3standard | 429 | Columba, Humphrey (1465) | Won 2-0 | +181480 |
| 4standard | 450 | Davila, Gilbert (1454) | Won 2-0 | +181498 |
| 5standard | 327 | Cleveland, Daniel (1465) | Won 2-0 | +171515 |
| 6standard | 267 | Woodward, Jeffrey (1517) | Won 2-1 | +181533 |
| 7standard | 214 | Iafrate, Drew (1524) | Lost 1-2 | -181515 |
| top | average opponent: 1518record: 4-3 | new rating: 1515 | ||
| Grand Prix Kansas City 2011 (NPH limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 187 | Luttrell, Kent (1500) | Won 2-0 | +181485 |
| 2sealed | 187 | Price, Joseph A (1574) | Lost 1-2 | -161469 |
| 3sealed | 277 | Cook, Nick (1500) | Won 2-0 | +191488 |
| 4sealed | 163 | Hammond, Dakota (1523) | Won 2-1 | +181506 |
| 5sealed | 153 | Bragg, Daniel (1656) | Lost 1-2 | -151491 |
| 6sealed | 172 | Fang, Percy (1523) | Lost 0-2 | -171474 |
| 7sealed | 222 | Terry, Allen (1414) | Won 2-0 | +171491 |
| 8sealed | 174 | Langbehn, Adam (1520) | Won 2-0 | +181509 |
| 9sealed | 111 | Oliveira, Luiz (1685) | Lost 1-2 | -151494 |
| top | average opponent: 1544record: 5-4 | new rating: 1494 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 53 | Rogers, Andy (1518) | Won 2-0 | +181518 |
| 3standard | 43 | Sidher, Ricky (1554) | Lost 1-2 | -171501 |
| 4standard | 332 | Blanchard, Wes (1588) | Lost 1-2 | -161485 |
| 5standard | 348 | Funkhouser, Andrew (1501) | Lost 0-2 | -181467 |
| top | average opponent: 1540record: 1-3 | new rating: 1467 | ||