Blomqvist was a member of the Finnish National Ladies Team from 2001–2003 and played in the 2002 Espirito Santo TrophyWorld Amateur Golf Team Championships. She was a two-time member of the European PING Junior Solheim Cup Team in 2002 and 2003 winning all her matches in the winning 2003 side and she represented Europe in the 2003 Vagliano Trophy. She played as an amateur on the Telia Tour four times in 2000 and 2001 missing the cut each time. In 2002, she played in three Telia Tour events and recorded two top twenty finishes plus a win at the Sparbanken Ladies Open. In 2003, she played in five Telia tour tournaments, recorded two runner up finishes plus a win at the CA Ladies Trophy. and was named Telia Tour Player of the Year.
Professional career
Blomqvist turned professional late in 2003 and in 2004 claimed her maiden victory in only her second tournament as a professional at the Pam Golding Ladies International on the Nedbank Women's Golf Tour in South Africa following this up with a win in the Telkom Women's Classic a week later. These results meant she finished top of the Nedbank Women's Golf Tour Order of Merit for 2004. Having finished 36th at the Ladies European Tour Qualifying School in 2003, Blomqvist had conditional status for 2004 when making her Ladies European Tour debut in Tenerife where she finished fourth. She won her maiden LET tournament later in the year in Hungary and gained her first top ten finish in a major at the Women's British Open during which she shot a record low score of 62. She had five other top twenty LET finishes in 2004 together with another win at the Öijared Ladies Open on the Telia Tour. and was the LET Rookie of the Year. At the start of 2005 she teamed with Riikka Hakkarainen to represent Finland at the inaugural Women's World Cup of Golf. On the Ladies European Tour she posted 11 top-20 finishes, including back-to-back runner-up finishes at the Ladies English Open and the OTP Bank Ladies Central European Open and earned non-exempt status for the 2006 LPGA Tour season by tying for 34th at the LPGA Final Qualifying Tournament. At the start of 2006 she again teamed with Riikka Hakkarainen to represent Finland at the Women's World Cup of Golf. She concentrated on playing on the LPGA tour in 2006 ending the season with a best finish of 24th and 102nd on the money list. In 2008 Blomqvist added another success to her résumé. By winning the Finnair Masters she became the first Finn to triumph in that event. Another notable achievement was finishing tied as a runner-up at the rain-shortened Scandinavian TPC Hosted by Annika, where she played her last round in 63 strokes. On LPGA Tour her best finish was 3rd place at the Safeway International.