Bertelsen, Erik
Current rating: 1630
Record: 47-39
| Regional Championships Atlanta 2022 (pioneer) | starting rating: 1666 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 1055 | Messeder, Isaac (1500) | Lost 0-2 | -211645 |
| 2pioneer | 1455 | Lundquist, Anthony (1757) | Lost 1-2 | -161629 |
| 3pioneer | 1406 | Bianchi, Alex (1688) | Lost 1-2 | -171612 |
| 4pioneer | 1433 | Cook, Anthony (1668) | Won 2-0 | +191631 |
| 5pioneer | 1406 | Malone, Michael (1616) | Won 2-1 | +181649 |
| 6pioneer | 1274 | Downs, Mikaela (1620) | Lost 1-2 | -191630 |
| top | average opponent: 1642record: 2-4 | new rating: 1630 | ||
| Grand Prix Richmond 2018 (std) (M19 standard) | starting rating: 1682 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 138 | Galloway, Nicholas (1348) | Won 2-0 | +131695 |
| 2standard | 29 | Smith, Stan (1453) | Won 2-0 | +131708 |
| 3standard | 96 | Petroski, Michael (1519) | Won 2-0 | +151723 |
| 4standard | 35 | Appleton, Evan (1508) | Lost 0-2 | -221701 |
| 5standard | 137 | Vincent Ardea, Felix (1615) | Lost 0-2 | -201681 |
| 6standard | 218 | Davis, Peter (1816) | Lost 0-2 | -151666 |
| top | average opponent: 1543record: 3-3 | new rating: 1666 | ||
| Grand Prix Richmond 2018 (leg) (legacy) | starting rating: 1729 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 198 | Milia, Joseph (1612) | Lost 0-2 | -201709 |
| 2legacy | 231 | Partington, Josh (1661) | Lost 1-2 | -191690 |
| 3legacy | 382 | Olgieser, David (1465) | Lost 0-2 | -221668 |
| 4legacy | 396 | Nelson, Danial (1448) | Won 2-1 | +141682 |
| top | average opponent: 1546record: 1-3 | new rating: 1682 | ||
| Grand Prix Pittsburgh 2018 (DOM standard) | starting rating: 1691 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 247 | Kurty, Nathaniel (1500) | Won 2-1 | +151706 |
| 2standard | 112 | Bean, Cody (1503) | Lost 0-2 | -221684 |
| 3standard | 240 | Samaras, Arthur (1494) | Won 2-0 | +151699 |
| 4standard | 144 | Claudel, Slater (1928) | Won 2-1 | +221721 |
| 5standard | 114 | Corbin, Julia (1627) | Won 2-0 | +161737 |
| 6standard | 135 | Colombo, Rocco (1555) | Won 2-1 | +151752 |
| 7standard | 24 | Ashton, Thomas (1983) | Lost 0-2 | -141738 |
| 8standard | 60 | Cameron, Shaun (1513) | Won 2-0 | +141752 |
| 9standard | 146 | Yurchick, Adam (1689) | Lost 1-2 | -191733 |
| 10standard | 145 | Glosner, Alexander (1759) | Won 2-1 | +181751 |
| 11standard | 116 | Vaughan, Robert (1864) | Lost 1-2 | -161735 |
| 12standard | 131 | Harmon, Lawrence (1687) | Lost 1-2 | -191716 |
| 13standard | 90 | Burton, Brandon (1757) | Won 2-1 | +191735 |
| 14standard | 118 | Poltorak, Darren (1525) | Won 2-1 | +141749 |
| 15standard | 115 | Ritter, Jeffrey (1638) | Lost 1-2 | -201729 |
| top | average opponent: 1668record: 9-6 | new rating: 1729 | ||
| Grand Prix Pittsburgh 2016 (SOI standard) | starting rating: 1629 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 178 | Christopher, Michael 5140 (1535) | Won 2-1 | +171646 |
| 4standard | 117 | Nakamura, Shuhei (2047) | Lost 0-2 | -111635 |
| 5standard | 300 | Evans, Jacob (1495) | Won 2-1 | +151650 |
| 6standard | 77 | Handlon, Randall (1559) | Won 2-1 | +161666 |
| 7standard | 50 | Scott, Todd (1752) | Won 2-0 | +201686 |
| 8standard | 17 | Telarov, Aleksa (1887) | Lost 0-2 | -141672 |
| 9standard | 53 | Body, Tyler (1580) | Won 2-0 | +161688 |
| 10standard | 283 | Bassett, Daniel (1631) | Won 2-0 | +171705 |
| 11standard | 296 | Cottrell, Scott (1679) | Won 2-1 | +171722 |
| 12standard | 270 | O'Shaughnessy, James (1825) | Lost 0-2 | -161706 |
| 13standard | 301 | Mason, Sky (1888) | Lost 0-2 | -141692 |
| 14standard | 328 | Lucas, Orlando (1616) | Lost 1-2 | -201672 |
| 15standard | 334 | Ratajczak, Matthew (1731) | Won 2-0 | +191691 |
| top | average opponent: 1710record: 8-5 | new rating: 1691 | ||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 491 | Flickinger, Eric (1616) | Lost 1-2 | -161511 |
| 4modern | 329 | Cortes, Christoph (1516) | Won 2-0 | +181529 |
| 5modern | 371 | Tibbitts, Nicholas (1549) | Lost 1-2 | -181511 |
| 6modern | 476 | Vanstory, William (1519) | Won 2-1 | +181529 |
| 7modern | 440 | Nelson, Dan (1809) | Won 2-0 | +231552 |
| 8modern | 248 | Bartlett, Jon (1558) | Won 2-0 | +181570 |
| 9modern | 123 | Mullen, Collins (1548) | Lost 0-2 | -181552 |
| 10modern | 285 | Skoler, Alex (1562) | Won 2-0 | +181570 |
| 11modern | 180 | Ramcharan, Chris (1497) | Won 2-0 | +171587 |
| 12modern | 124 | Ellis, Scott (1601) | Lost 1-2 | -181569 |
| 13modern | 208 | Brinkman, Stuart (1609) | Won 2-0 | +191588 |
| 14modern | 154 | Pressley, Logan (1570) | Won 2-0 | +181606 |
| 15modern | 94 | Orange, Gregory (1941) | Won 2-1 | +231629 |
| top | average opponent: 1607record: 9-4 | new rating: 1629 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 538 | Gaskins, Evan (1519) | Won 2-0 | +181560 |
| 3modern | 315 | Ulanov, Denis (1686) | Lost 0-2 | -161544 |
| 4modern | 312 | Tondini, Jerry (1497) | Lost 0-2 | -191525 |
| 5modern | 970 | O'Brien, Chris (1491) | Lost 0-2 | -181507 |
| 6modern | 878 | Li, Chen (1653) | Won 2-0 | +201527 |
| top | average opponent: 1569record: 2-3 | new rating: 1527 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 210 | Moore, Timmy (1483) | Lost 1-2 | -181508 |
| 3modern | 412 | Pedersen, Chris (1431) | Lost 1-2 | -201488 |
| 4modern | 598 | Ewing, Mark (1464) | Won 2-0 | +181506 |
| 5modern | 512 | Dorriety, Megan (1390) | Won 2-1 | +161522 |
| 6modern | 342 | Stepp, Josh (1519) | Won 2-1 | +181540 |
| 7modern | 333 | Simmonds, Alex (1685) | Won 2-1 | +201560 |
| 8modern | 274 | Golding, Chase (1554) | Lost 1-2 | -181542 |
| top | average opponent: 1504record: 4-3 | new rating: 1542 | ||
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 314 | Ritrovato, Ryan (1667) | Won 2-1 | +221501 |
| 3sealed | 52 | Sardanelli, Thomas (1592) | Lost 1-2 | -171484 |
| 4sealed | 489 | Potter, Rusty (1436) | Won 2-1 | +181502 |
| 5sealed | 152 | Garamvolgyi, Alex (1534) | Lost 1-2 | -181484 |
| 6sealed | 241 | arends, Randy (1483) | Lost 0-2 | -181466 |
| 7sealed | 368 | Espejo, Angel (1424) | Won 2-1 | +171483 |
| 8sealed | 284 | Arnold, Brian (1522) | Won 2-0 | +191502 |
| 9sealed | 207 | LePine, Mark (1867) | Won 2-0 | +241526 |
| top | average opponent: 1565record: 5-3 | new rating: 1526 | ||
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 272 | Plaza, Andrew (1500) | Won 2-0 | +181518 |
| 2sealed | 275 | Currie, Joshua (1406) | Lost 0-2 | -201498 |
| 3sealed | 288 | Manning, David (1596) | Lost 0-2 | -161482 |
| 4sealed | 491 | Bergstresser, Gordon (1401) | Won 2-1 | +161498 |
| 5sealed | 395 | Dobbin, Zach (1492) | Lost 0-2 | -181480 |
| 6sealed | 371 | Natale, Toby (1550) | Won 2-0 | +191499 |
| 7sealed | 302 | Erez, Jordan (1500) | Won 2-1 | +181517 |
| 8sealed | 191 | deBorja, Peter (1398) | Lost 0-2 | -201497 |
| 9sealed | 188 | Jort, Elias (1505) | Lost 0-2 | -181479 |
| top | average opponent: 1483record: 4-5 | new rating: 1479 | ||