Radunske made his professional debut with Edmonton (AHL) on 18 October 2004 against San Antonio and scored his first professional goal on 23 October 2004 at Manitoba. In 2005–06, he was part of the Greenville team that advanced to an American Conference division semifinal playoff berth with a 45–24–3 regular season record (93 points), scoring his first goal of the season with
Grand Rapids (AHL) on 14 November 2006 vs. Milwaukee. He followed up three games later with the game's first goal on 1 December 2006 vs. Rochester. He scored his first goal in a Thunder uniform on 4 March 2007, part of a two-goal output. He scored a career-high and tied a Thunder all-time single-game record with four points (1g-3a) on 9 March 2007 vs. Victoria, in a 5–4 shootout win. He broke a Thunder single-game record with a new career-high five points (2g-3a) on 22 March 2007, in a 6–3 win at Utah. He spent the 2007–08' season with
Augsburger Panther (DEL), appeared in 37 games and scoring seven goals and 19 assists, for a total of 26 points.
Career in Asia In May 2008, Radunske signed a one-year deal with
Anyang Halla, earning his first point on
Brad Fast's goal on 20 September 2008 vs
High1 in
Goyang. He scored his first goal for Halla on 21 September 2008 vs High1 with 51 seconds in the game. Radunske scored his first goal in home building on 29 September 2008 vs
Oji Eagles and scored his first hat trick on 18 January 2009 vs Seibu Prince Rabbits. After leading the league with goals & points, Radunske was awarded four trophies including regular season MVP, the Best-forward, best scorer & best point. In February 2009 Radunske re-signed with Anyang Halla for a three-year deal. Radunske's three-year deal is the longest contract extension in the club's history including all imports among Korean pro-sports league. Radunske captured his first ever championship title, beating
Nippon Paper Cranes series of 3–2 in the 2009–10 Asia League final. Radunske was named playoffs MVP. As of the 2013–14 season, he's team all-time leader with most Goals scored and Points accumulated. Radunske officially retired after 2017–2018 season. ==International career==