Denmark Ousted started his career with
Brøndby IF, but did not play any senior games for the club. He then played for a number of
Danish 1st Division teams, before making his breakthrough with Superliga club
SønderjyskE. Ousted was brought to
Randers FC in the summer of 2010 for an undisclosed fee in a swap deal with Australian goalkeeper
Nathan Coe. In the
2010–2011 UEFA Europa League, Ousted made six appearances for Randers. Ousted led Randers to a third-place finish in the
2012–13 Danish Superliga season which saw the club qualify for the
2013–14 UEFA Europa League. In total, Ousted played 103 matches for Randers and kept 35 clean sheets.
Major League Soccer Ousted signed with
Vancouver Whitecaps FC of
Major League Soccer as a free agent on 20 June 2013. In July 2016, he was included in the roster for the
2016 MLS All-Star Game. He indicated that he planned to leave the club on 1 January 2018, when his contract expired. On 8 January 2018, Ousted signed with MLS side
D.C. United, with his former side Vancouver receiving a second-round draft pick in the
2018 MLS SuperDraft. On 27 January 2019, Ousted was claimed off waivers by the
Chicago Fire.
Hammarby IF On 20 February 2020, Ousted transferred to the Swedish club
Hammarby IF in
Allsvenskan. He signed a one-year contract, with an option for a further. On 30 May 2021, Ousted won the
2020–21 Svenska Cupen, the main domestic cup, with Hammarby through a 5–4 win on penalties (0–0 after full-time) against
BK Häcken in the final, where he saved
Bénie Traoré's attempt. On 4 December 2021, he came in as a substitute in a 5–3 home win against Kalmar FF, marking his last appearance for Hammarby. Ousted decided to retire from professional football at the end of the year.
Midtjylland Despite announcing his retirement at the end of 2021, it was confirmed on 26 January 2022 that Ousted had signed a deal until the end of the season with
Danish Superliga club
FC Midtjylland. On 22 May 2022, Midtjylland announced that Ousted was one out of seven players, whose contracts had come to an end and therefore would leave the club. The decision was later changed when the club announced on 24 June that Ousted had signed a new deal for the rest of the year. However, on 31 August 2022, Ousted once again announced his retirement from football. ==Honours==