Ohr made his break-through ahead of the 1997 season, at same time as the other local youngsters, Thomas Mork and Anders Hasselgård, and the trio got the nickname "". Ohr didn't play much for Molde in the 1999 season, and spent most of the season with Hødd which was relegated from the First Division. After the season, Molde decided to terminate Ohr's contract. He subsequently joined Start in 2000, and was a part of the team that was relegated from Tippeligaen. Ohr scored 14 goals in 53 matches for Start between 2000 and 2001, before he was sold to Vålerenga. In his first season with the club, he became Norwegian Champion after they won the 2002 Norwegian Football Cup. In mid-2003, Ohr transferred to Stabæk and played for the team until they was relegated from Tippeligaen in 2004.