Bø, who started for Strindheim IL , competed in Sjusjøen for the first time in the Scandinavian Cup in January 2007 and finished 63rd in the 5 km freestyle and 52nd place in the 10 km mass start race. In December 2007 she won her first Continental Cup victory in the sprint at the US Super Tour in Soldier Hollow . In the 2009/10 season she reached three top ten placements in the Scandinavian Cup. She won the sprint race in Jõulumäe and finished eighth in the overall standings at the end of the season. She made her debut in the World Cup in March 2010 in Drammen , which she finished in 43rd place in the sprint. In February 2012 she took her second victory in the Scandinavian Cup in the sprint in Madona . The following month she won her first and only World Cup points in the sprint in Drammen with 25th place. She ran her last race in the Scandinavian Cup in December 2012 in Sjusjøen and finished 32nd in the 15 km mass start race. At Norwegian championships she was second with the relay of Strindheim IL in 2006.