Elfering, Brian
Current rating: 1513
Record: 21-20
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 646 | Bauters, Christine (1500) | Won 2-0 | +181531 |
| 2legacy | 128 | Sherrill, Keith (1531) | Lost 1-2 | -181513 |
| 3legacy | 780 | Alspach, Matthew (1487) | Won 2-0 | +181531 |
| 4legacy | 367 | Nickel, John (1485) | Lost 0-2 | -191512 |
| 5legacy | 537 | Rowe, John (1520) | Won 2-0 | +181530 |
| 6legacy | 494 | Cotter, Andrew (1590) | Lost 1-2 | -171513 |
| top | average opponent: 1519record: 3-3 | new rating: 1513 | ||
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 72 | Woodruff, Matt (1500) | Lost 1-2 | -181496 |
| 2modern | 468 | Roberts, Molly (1431) | Won 2-1 | +171513 |
| 3modern | 388 | Long, Joseph (1498) | Won 0-0 | +181531 |
| 4modern | 269 | Melvin, Joe (1495) | Won 2-1 | +171548 |
| 5modern | 105 | Bortz, Chad (1507) | Won 2-1 | +171565 |
| 6modern | 98 | Ho, Anthony (1619) | Lost 0-2 | -171548 |
| 7modern | 121 | Heath, Joel (1561) | Lost 1-2 | -181530 |
| 8modern | 202 | Rausche, Jonathan (1574) | Lost 0-2 | -171513 |
| top | average opponent: 1523record: 4-4 | new rating: 1513 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 590 | Hunt, Justin (1471) | Lost 0-2 | -181499 |
| 2extended | 607 | Ballinger, William (1482) | Won 2-0 | +171516 |
| 3extended | 504 | Walker, Stephen C (1463) | Won 2-0 | +171533 |
| 4extended | 558 | Margolis, Max (1510) | Lost 1-2 | -181515 |
| 5extended | 582 | Segarra, Andre (1499) | Won 2-0 | +181533 |
| 6extended | 573 | Hoang, Khai (1519) | Lost 0-2 | -191514 |
| top | average opponent: 1491record: 3-3 | new rating: 1514 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 86 | Glover, Brian (1500) | Lost 1-2 | -191503 |
| 2legacy | 190 | Mohler, Michael (1482) | Won 2-1 | +181521 |
| 3legacy | 137 | Hauf, Bryan (1401) | Lost 0-2 | -201501 |
| 4legacy | 241 | Kozminski, Marcus (1481) | Won 2-0 | +181519 |
| 5legacy | 187 | Heisman, Adam (1502) | Won 2-1 | +171536 |
| 6legacy | 167 | Gunter, Michael (1493) | Lost 1-2 | -191517 |
| top | average opponent: 1477record: 3-3 | new rating: 1517 | ||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 878 | Casey, Jake A (1500) | Won 2-0 | +181518 |
| 2standard | 753 | Sheehan, Glen (1518) | Won 2-1 | +181536 |
| 3standard | 714 | Fabiano, Gerard (1778) | Lost 0-2 | -141522 |
| 4standard | 866 | Martinelli, Jonathan (1519) | Lost 0-2 | -181504 |
| 5standard | 907 | Molloie, Zachary P (1501) | Won 2-0 | +181522 |
| 6standard | 838 | Berchall, John (1519) | Won 2-0 | +181540 |
| 7standard | 718 | Deveines, Brandon (1536) | Lost 0-2 | -181522 |
| top | average opponent: 1553record: 4-3 | new rating: 1522 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 185 | Moody, Tyler (1500) | Won 2-0 | +181518 |
| 2sealed | 162 | Graham, Asaph (1518) | Won 2-0 | +181536 |
| 3sealed | 95 | Magnan, Bronson (1546) | Won 2-0 | +181554 |
| 4sealed | 116 | Hostutler, Justin (1624) | Won 2-1 | +191573 |
| 5sealed | 24 | Moo Young, Laurence (1601) | Lost 0-2 | -171556 |
| 6sealed | 71 | McFadden, Robert (1460) | Lost 0-2 | -201536 |
| 7sealed | 138 | Kasliner, Scott (1501) | Lost 1-2 | -181518 |
| 8sealed | 163 | Velazquez, Jonathan (1524) | Lost 0-2 | -181500 |
| top | average opponent: 1534record: 4-4 | new rating: 1500 | ||