Grondahl, Erik
Current rating: 1555
Record: 15-13-1 (GP) / 55-47-1 (professional)
| Grand Prix Malmo 2012 (AVR limited) | starting rating: 1593 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 545 | Taoubi, Farid (1599) | Lost 0-2 | -181575 |
| 2sealed | 642 | Momme, Martin (1482) | Lost 1-2 | -201555 |
| top | average opponent: 1540record: 0-2 | new rating: 1555 | ||
| Pro Tour Berlin 2008 (extended) | starting rating: 1671 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 136 | Wijaya, Vidianto (1625) | Won 2-1 | +171688 |
| 2extended | 55 | Alvarado, Saul (1580) | Lost 1-2 | -201668 |
| 3extended | 132 | Gurney, Michael (1829) | Lost 1-2 | -151653 |
| 4extended | 167 | Hillmann, Alexander (1492) | Lost 1-2 | -211632 |
| 5extended | 159 | Partansky, Alex (1474) | Lost 1-2 | -211611 |
| 6extended | 195 | Messick, Ryan (1679) | Lost 1-2 | -161595 |
| 7extended | 172 | Kwang, Sam (1425) | Won 2-1 | +151610 |
| 8extended | 144 | Kadooka, Toshiyuki (1691) | Lost 0-2 | -171593 |
| top | average opponent: 1599record: 2-6 | new rating: 1593 | ||
| Grand Prix Copenhagen 2008 (EVE standard) | starting rating: 1658 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 76 | Sole Garcia, Daniel (1533) | Won 2-1 | +161674 |
| 2standard | 9 | Kuva, Jukka (1607) | Lost 0-2 | -191655 |
| 3standard | 201 | Jensen, Jeppe (1500) | Won 2-0 | +151670 |
| 4standard | 133 | Lunau, Anton (1662) | Won 2-0 | +181688 |
| 5standard | 136 | Kopec, Mateusz (1956) | Lost 1-2 | -141674 |
| 6standard | 133 | Larsen, Christoffer (1625) | Won 2-1 | +181692 |
| 7standard | 129 | Davidsson, Simon (1553) | Lost 0-2 | -211671 |
| top | average opponent: 1634record: 4-3 | new rating: 1671 | ||
| Grand Prix Stockholm 2007 (FUT limited) | starting rating: 1667 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 59 | Vanderheyden, David (1617) | Won 2-0 | +171684 |
| 4sealed | 97 | Joens, Klaus (1789) | Draw 1-1 | +21686 |
| 5sealed | 15 | Liljefeldt, Olle (1535) | Won 2-1 | +151701 |
| 6sealed | 26 | Koster, Olaf (1642) | Lost 1-2 | -191682 |
| 7sealed | 72 | Pakalen, Niko (1577) | Won 0-0 | +161698 |
| 8sealed | 46 | Cedercrantz, Martin (1572) | Lost 1-2 | -201678 |
| 9sealed | 82 | Yeh, Gottlieb (1575) | Lost 1-2 | -201658 |
| top | average opponent: 1615record: 3-3-1 | new rating: 1658 | ||
| 2006 World Championship (mixed) | starting rating: 1812 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 100 | Ishimaru, Ken (1624) | Lost 0-2 | -211791 |
| 2standard | 155 | Woltereck, Chris (1757) | Won 2-0 | +171808 |
| 3standard | 82 | Tzekov, Hristo (1519) | Lost 1-2 | -231785 |
| 4standard | 135 | Peset, Alexandre (1865) | Lost 1-2 | -161769 |
| 5standard | 142 | Popovic, Filip (1494) | Won 2-0 | +131782 |
| 6standard | 131 | Al-Bacha, Wesimo (1863) | Lost 0-2 | -171765 |
| 7draft | 158 | Petreski, Samoil (1507) | Lost 0-2 | -221743 |
| 8draft | 172 | Blanc, Regis (1529) | Won 2-0 | +141757 |
| 9draft | 117 | Velhinho, Pedro (1603) | Won 2-0 | +151772 |
| 10draft | 9 | Cardin, Guillaume (1736) | Lost 1-2 | -191753 |
| 11draft | 136 | Petreski, Samoil (1517) | Draw 1-1 | -41749 |
| 12draft | 110 | Leon Valencia, Francisco (1563) | Won 2-0 | +151764 |
| 13extended | 103 | Selihove, Sergi (1476) | Lost 1-2 | -231741 |
| 14extended | 123 | Erdogan, Cem (1473) | Won 2-0 | +131754 |
| 15extended | 101 | Koekemoer, Marthinus (1495) | Lost 0-2 | -231731 |
| 16extended | 114 | Gerasymenko, Oleksandr (1506) | Lost 1-2 | -221709 |
| 17extended | 123 | Krautmann, Wenzel (1681) | Lost 0-2 | -181691 |
| 18extended | 130 | Murray, Stephen (1364) | Lost 0-2 | -241667 |
| top | average opponent: 1587record: 6-11-1 | new rating: 1667 | ||
| Pro Tour Prague 2006 (DIS draft) | starting rating: 1858 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 77 | Walamies, Tomi (1949) | Lost 1-2 | -161842 |
| 2draft | 86 | Oppliger, Daniel (1511) | Won 2-1 | +121854 |
| 3draft | 106 | Barbero, Jose (1711) | Lost 0-2 | -211833 |
| 4draft | 6 | Barclay, Bradley (1670) | Lost 1-2 | -211812 |
| top | average opponent: 1710record: 1-3 | new rating: 1812 | ||
| Pro Tour Honolulu 2006 (GPT standard) | starting rating: 1836 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 112 | Ashman, Benji (1452) | Won 2-0 | +111847 |
| 2standard | 98 | Kawakubo, Takuya (1524) | Won 2-1 | +121859 |
| 3standard | 25 | Huang, Derek C (1618) | Lost 0-2 | -221837 |
| 4standard | 91 | Messel, Nicolas (1535) | Won 2-0 | +131850 |
| 5standard | 19 | Reid, Gavin (1511) | Won 2-0 | +121862 |
| 6standard | 16 | Lieberman, Alex (1871) | Won 2-0 | +181880 |
| 7standard | 5 | Aten, Timothy (1698) | Lost 1-2 | -221858 |
| 8standard | 20 | Calafell, Joel (1701) | Lost 0-2 | -201838 |
| 9standard | 52 | Moreno, William (1586) | Won 2-0 | +131851 |
| 10standard | 45 | Shiozu, Ryouma (1893) | Lost 1-2 | -171834 |
| 11standard | 58 | Sadeghpour, Johan (1775) | Won 2-1 | +171851 |
| 12standard | 41 | Nygaard, Nikolas (1858) | Lost 1-2 | -181833 |
| 13standard | 50 | Glover, James W [NZL] (1576) | Won 2-1 | +131846 |
| 14standard | 37 | Hasegawa, Hironobu (1739) | Won 2-1 | +161862 |
| 15standard | 24 | Ottati, Domingo (1853) | Lost 1-2 | -181844 |
| 16standard | 32 | Taniguchi, Yuusuke (1606) | Won 2-1 | +141858 |
| top | average opponent: 1675record: 10-6 | new rating: 1858 | ||
| Pro Tour Los Angeles 2005 (extended) | starting rating: 1744 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 116 | Schinkel, Darrell (1500) | Lost 0-2 | -221722 |
| 2extended | 95 | Beck, Josh (1490) | Won 2-0 | +131735 |
| 3extended | 114 | Campos, Emilio (1619) | Lost 0-2 | -201715 |
| 4extended | 133 | Dominguez, Javier (1646) | Won 2-0 | +171732 |
| 5extended | 106 | Oodan, Takeshi (1543) | Lost 0-2 | -211711 |
| 6extended | 122 | Zurimendi, Ander (1499) | Won 2-0 | +141725 |
| 7extended | 67 | Fatouros, Vasilis (1721) | Won 2-1 | +181743 |
| 8extended | 71 | Stokinger, Andrew (1672) | Won 2-0 | +161759 |
| 9extended | 30 | De Rosa, Antonino (1900) | Won 2-1 | +211780 |
| 10extended | 21 | Kennes, Johan (1667) | Won 1-0 | +161796 |
| 11extended | 11 | Herberholz, Mark (1932) | Lost 1-2 | -161780 |
| 12extended | 29 | Thompson, Mike (1733) | Won 2-1 | +181798 |
| 13extended | 17 | Douglass, Morgan (1804) | Won 2-0 | +181816 |
| 14extended | 15 | Takahashi, Yuta (1742) | Lost 0-2 | -201796 |
| 15extended | 26 | Nakamura, Shuhei (1992) | Won 2-0 | +221818 |
| 16extended | 20 | Norgaard, Lasse (1800) | Won 2-1 | +181836 |
| top | average opponent: 1704record: 11-5 | new rating: 1836 | ||
| Pro Tour London 2005 (SOK draft) | starting rating: 1752 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 131 | Cohen, Steven (1484) | Won 2-0 | +141766 |
| 2draft | 56 | Zidek, Arnost (1793) | Lost 0-2 | -181748 |
| 3draft | 66 | Scardone, Nicola (1526) | Won 2-1 | +141762 |
| 4draft | 53 | Brucker, David (1948) | Lost 0-2 | -151747 |
| 5draft | 63 | Eisenhard, Cory (1559) | Won 2-0 | +151762 |
| 6draft | 24 | Hauptmann, Aaron (1541) | Won 2-1 | +141776 |
| 7draft | 29 | Brucker, David (1953) | Lost 0-2 | -151761 |
| 8draft | 3 | Harkonen, Jarno (1806) | Won 2-1 | +191780 |
| 9draft | 33 | Carvalho, Marcio (1978) | Lost 0-2 | -141766 |
| 10draft | 44 | Pech, Rene (1631) | Won 2-1 | +151781 |
| 11draft | 3 | Osawa, Takuya (1783) | Lost 0-2 | -181763 |
| 12draft | 45 | Fujita, Osamu (1901) | Lost 0-2 | -151748 |
| 13draft | 29 | Le Borgne, Julien (1602) | Lost 0-2 | -211727 |
| 15draft | 47 | Cunningham, Eric (1661) | Won 2-0 | +171744 |
| top | average opponent: 1726record: 7-7 | new rating: 1744 | ||
| Pro Tour Philadelphia 2005 (Kamigawa block) | starting rating: 1665 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 30 | Garcia Copete, David (1593) | Won 2-1 | +161681 |
| 2block | 13 | Pinnegar, Michael (1531) | Won 2-1 | +161697 |
| 3block | 15 | Hayner, Michael (1597) | Won 2-0 | +161713 |
| 4block | 18 | Sasagawa, Tomohide (1815) | Won 2-0 | +201733 |
| 5block | 4 | Roy, Jim (1538) | Lost 0-2 | -221711 |
| 6block | 26 | Adebo Diaz, Juan Carlos (1756) | Won 2-0 | +191730 |
| 7block | 10 | Ruel, Olivier (2059) | Lost 0-2 | -121718 |
| 8block | 29 | Oberg, Kenny (1578) | Won 2-0 | +151733 |
| 9block | 8 | Cheon, Paul (1570) | Won 2-0 | +151748 |
| 10block | 6 | Caumes, Benjamin (1812) | Won 2-1 | +191767 |
| 11block | 4 | Szleifer, Gadiel (1930) | Lost 1-2 | -151752 |
| top | average opponent: 1707record: 8-3 | new rating: 1752 | ||
| Pro Tour Columbus 2004 (extended) | starting rating: 1565 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 53 | Mueller, Andre (1671) | Won 2-1 | +201585 |
| 2extended | 44 | Day, Michael (1525) | Lost 1-2 | -191566 |
| 3extended | 89 | Sharma, Arun (1620) | Won 2-0 | +191585 |
| 4extended | 28 | Scott, Matt (1574) | Won 2-0 | +181603 |
| 5extended | 28 | Wood, Matthew E (1515) | Won 2-0 | +161619 |
| 6extended | 6 | Thompson, Gerry (1818) | Won 2-1 | +221641 |
| 7extended | 8 | Lerch, Dylan (1620) | Won 2-1 | +171658 |
| 8extended | 3 | Arita, Ryuichi (1760) | Lost 1-2 | -161642 |
| 9extended | 15 | Carvajal Blanco, David (1684) | Lost 1-2 | -171625 |
| 10extended | 24 | Wiegersma, Jelger (1767) | Won 2-1 | +211646 |
| 11extended | 12 | Humpherys, David (2017) | Lost 1-2 | -121634 |
| 12extended | 19 | Fries, Stefan (1820) | Lost 0-2 | -151619 |
| 13extended | 29 | Walls, Gabe (1841) | Won 2-1 | +221641 |
| 14extended | 25 | Peset, Alexandre (1862) | Lost 0-2 | -141627 |
| 15extended | 29 | McGee, Michael (1645) | Won 2-1 | +191646 |
| 16extended | 26 | Parnell, Taylor (1696) | Won 2-0 | +191665 |
| top | average opponent: 1715record: 10-6 | new rating: 1665 | ||
| Grand Prix Gothenburg 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 9 | Lennartsson, Stefan (1484) | Lost 1-2 | -181482 |
| 2sealed | 122 | Berglund, Axel (1482) | Won 2-1 | +181500 |
| 3sealed | 162 | Sjoberg, Perry (1475) | Won 2-0 | +171517 |
| 4sealed | 120 | Steen, Emanuel (1501) | Won 2-1 | +181535 |
| 5sealed | 41 | Groenhof, Jan Pieter (1573) | Won 2-0 | +191554 |
| 6sealed | 58 | Ekebom, Erno (1729) | Won 2-0 | +211575 |
| 7sealed | 14 | Saddiq, Omar (1577) | Won 2-0 | +181593 |
| 8sealed | 14 | Linder, David (1853) | ID | 01593 |
| 9rochester | 32 | Dang, Martin (1476) | Lost 0-2 | -201573 |
| 10rochester | 25 | Schmitz, Alexander (1595) | Lost 0-2 | -181555 |
| 11rochester | 29 | Barbero, Jose (1911) | Lost 0-2 | -121543 |
| 12rochester | 3 | Rosholm, Thomas (1789) | Lost 0-2 | -131530 |
| 13rochester | 11 | Wiedenbein, Holger (1529) | Won 2-0 | +181548 |
| 14rochester | 2 | Wallin, Johnny (1522) | Won 2-0 | +171565 |
| top | average opponent: 1607record: 8-5-1 | new rating: 1565 | ||