However, Reginiussen stayed at Tromsø for the 2009 season despite not keen on signing a new contract. He continued to retain his first team place at the start of the season, playing in the defensive or midfield position. Reginiussen was sent–off in the 67th minutes for a professional foul on Bernt Hulsker, in a 3–1 loss against IK Start on 26 April 2009. After the match, the club appeal against his suspension, citing the TV replays, but in the end, he served a two match suspension. It wasn’t until on 16 May 2009 when Reginiussen returned to the starting line-up, playing the whole game, in a 0–0 draw against FK Bodø/Glimt. He also continued be a key figure in the club’s defence over the season. During a 2–0 loss against Stabæk on 1 June 2009, he suffered a groin injury and had to be substituted in the 36th minutes, resulting him being out for several weeks. It wasn’t until on 24 June 2009 when Reginiussen made his return, coming on as the 56th minutes substitute, in a 1–0 loss against Viking. It wasn’t until on 26 July 2009 when Reginiussen scored his first Tromsø goal, in a 2–1 win against Strømsgodset. This was followed up by scoring in a 2–2 draw against Lillestrøm. His third goal then came on 20 September 2009, scoring the only goal of the game, in a 1–0 against Molde. Reginiussen followed up with the next two matches by keeping a clean sheet. However, he suffered injuries that kept him out for the rest of the 2009 season. At the end of the 2009 season, he went on to make thirty–two appearances and scoring four times in all competitions.