keeping him until 2018. In the 2015 season, Reginiussen started the match in the opening game of the season against Aalesunds and helped them beat 5–0. However, during the match, he injured his Achilles and had to be substituted in the 65th minute, resulting a successful operation but was sidelined for six months. In September 2015, Reginiussen returned from injury, playing for the reserve side to regain his fitness. It wasn't until on 4 October 2015 against IK Start when he came on as a 78th-minute substitute, in a 4–0 win Reginuissen was given his first start since April 2015, captain the side to help them draw 3–3 draw against Strømsgodset on 25 October 2015. Reginiussen came on as a 72nd-minute substitute against Haugesund on 1 November 2015 and helped the side win 4–3, resulting in the club becoming Champions for the first time since 2010 In the Norwegian Football Cup Final against Sarpsborg 08, he came on as a late substitute for Mikael Dorsin, in a 2–0 win to win the tournament. At the end of the 2015 season, Reginiussen went on to make five appearances for the side. Ahead of the 2016 season, Reginiussen was replaced as a captain by Mike Jensen, having convinced Manager Kåre Ingebrigtsen to do so. Reginiussen started the season when he helped the side keep four clean sheets between 19 March 2016 and 16 April 2016; during which, he scored in a 1–0 win against Aalesunds. Since the start of the 2016 season, Reginiussen regained his first team place, playing in the centre–back position and formed a partnership with Hólmar Örn Eyjólfsson. However, during a 2–0 win against IK Start on 16 May 2016, he suffered a thigh injury, resulting in his substitution in the 59th minute and was sidelined for two months. After being sidelined for two months, Reginiussen made his return to the starting line-up starting the whole game, in a 0–0 draw against Bodø/Glimt on 2 July 2016. Following this, he found himself rotated with Johan Bjørdal, Jørgen Skjelvik and Eyjólfsson in the starting line-up, which saw him placed on the substitute bench. Amid to this, he played both legs of the UEFA Europa League Qualifiying Round against Austria Wien; scoring in the first leg, but was subsequently eliminated after losing 4–2 on aggragate. Reginiussen came on as a 66th-minute substitute against Molde on 24 September 2016, and helped them