- 2011 FIBA Under-19 World Championship
- 2017 FIBA Asia Cup
- 2019 FIBA World Cup
- 2010–2018 Adelaide 36ers
- 2019 – present South East Melbourne Phoenix
- 2014 Nunawading Spectres
CABL – Premier League (Basketball SA)
- 2011 South Adelaide Panthers
- 2012 Woodville Warriors
- 2016 Southern Tigers
- 2018 Göttingen
NBA Summer League
- 2017 Utah Jazz
- 2018 Dallas Mavericks
- 2019 Minnesota Timberwolves
- 2019 Brooklyn Nets (10 Day Contract)
- 2019 Minnesota Timberwolves (2 * 10 Day Contract + Full Contract)
- 2010 Albert Schweitzer Tournament MVP
- 2010 Albert Schweitzer Tournament All Star 5 (power forward)
- 2010 Under 20 National Championships
- 2011 Under 20 National Championships
- 2011 Bob Staunton Medal
- 2014 All SEABL Team
- 2014/15 Most Improved (Adelaide 36ers) – Club Award
- 2016 Premier League Champion
- 2016 Premier League Season MVP
- 2016 Premier League Finals MVP
- 2016/17 Best Defensive Player (Adelaide 36ers) – Club Award
- 2017 FIBA Asia Cup Champions
- 2017/18 Club MVP (Adelaide 36ers) – Club Award
Creek was picked up by the Adelaide 36ers of the National Basketball League for the 2010–11 NBL season, and made his debut for the club on 3 December 2010 against the Townsville Crocodiles. In 21 minutes of action off the bench, he recorded seven points and three steals in a 92–79 win. As a rookie, he appeared in 20 games for the 36ers, averaging 5.8 points and 2.4 rebounds per game.
Following the 2010–11 NBL season, Creek remained in Adelaide and played for the South Adelaide Panthers of the Central ABL. His strong play with the 36ers earned him a spot on the Australian Emus squad for the 2011 FIBA Under-19 World Championship.
In 2011–12, Creek appeared in all 28 games for the 36ers, averaging 5.4 points, 3.0 rebounds and 1.2 assists per game. He again played in the Central ABL during the 2012 off-season, appearing in five games for the Woodville Warriors.
In 2012–13, Creek’s season with the 36ers was cut short after rupturing his Achilles tendon on 15 December 2012. He subsequently missed out on participating in the 2012 NBL All-Star Slam Dunk Contest. In 12 games, he averaged 5.8 points and 2.6 rebounds per game.
On 24 April 2013, Creek re-signed with the 36ers for the 2013–14 NBL season. He returned to action in 2013–14 and appeared in all but one game for the 36ers, showing no ill-effects from his Achilles injury. He helped lead the 36ers to the Grand Final where they were defeated 2–1 by the Perth Wildcats. In 33 games during the season, he averaged then career highs of 7.7 points and 3.8 rebounds per game.
During the 2014 off-season, Creek played in the SEABL for the Nunawading Spectres, helping the team reach the grand final where they lost to the Mount Gambier Pioneers.
On 14 May 2014, Creek re-signed with the 36ers on a two-year deal (with the option of a third). In 2014–15, he averaged career highs of 11.2 points, 4.4 rebounds and 1.5 assists in 26 games. For the 2015 off-season, he returned to the Woodville Warriors.
In 2015–16, Creek averaged 9.9 points, 4.1 rebounds, 1.4 assists and 1.1 steals in 26 games. For the 2016 off-season, he joined the Southern Tigers of the SA Premier League and helped them win the title. He earned Premier League Grand Final MVP, league MVP, Defensive Player of the Year and All-Star Five honours.
On 2 May 2016, Creek signed a three-year contract extension with the 36ers. He was later named team captain for the 2016–17 season. On 16 October 2016, he was ruled out for eight weeks after sustaining a stress fracture in his right foot against Melbourne United two days earlier. Creek returned to action on 10 December 2016, scoring 14 points off the bench in a 102–92 win over the New Zealand Breakers. Creek went on to help the 36ers claim their first regular season championship since 2000 with a 17–11 record in 2016–17. In 21 games, he averaged 12.1 points, 5.4 rebounds, 1.9 assists and 1.0 steals per game.
In the 2017 NBL off season, Creek was invited to participate in a free agent mini-camp run by the Utah Jazz before joining the Jazz’s Summer League team. In his last game of the NBA Summer League, Creek recorded 10 points (5/6 FG) and six rebounds in 16 minutes of playing time, in his final Summer League game with the Utah Jazz.
Mitch Creek was also selected to be a part of the Australian Boomers Squad in the first FIBA Asia Cup, where Australia took home the gold. Creek averaged 14.7 points with 5.2 rebounds and 2.3 assists per game. Creek dominated in the tournament with his strongest showing against Chinese Taipei where Creek scored a game high 22 points on a perfect 9-of-9 shooting.
On 2 April 2018, Creek signed with BG Göttingen of the German Basketball Bundesliga. In seven games, he averaged 11.9 points, 2.7 rebounds and 1.3 assists per game.
On 5 June 2018, Creek exercised his European-out clause, thus departing the 36ers after eight years. Two days later, he signed with s.Oliver Würzburg. However, after playing for the Dallas Mavericks’ summer league team in July, Creek exercised his NBA-out clause with Würzburg.
On 20 August 2018, Creek signed a non-guaranteed Exhibit 10 deal with the Brooklyn Nets. On 12 October 2018, Creek was waived by the Nets after appearing in one preseason game. Ten days later, he was acquired by Brooklyn’s NBA G League affiliate, the Long Island Nets.
On 25 January 2019, he signed a 10-day contract with the Brooklyn Nets. He made his NBA debut later that day, entering the game against the New York Knicks to take free throws for an injured Rondae Hollis-Jefferson in the fourth quarter, making one of them. On 4 February, he signed a second 10-day contract with Brooklyn. On 7 February, he was waived by Brooklyn. During his time with Brooklyn, he was assigned to Long Island four times. Upon being waived, he re-joined Long Island permanently. On 30 March, he signed a 10-day contract with the Minnesota Timberwolves. On 9 April, he signed with the Timberwolves for the rest of the season. In July 2019, he played for the Timberwolves at the Las Vegas Summer League.
On 4 December 2018, Creek was announced as the first marquee signing of the South East Melbourne Phoenix, a franchise entering the NBL for the 2019–20 season. He signed a two-year deal, with a player option for a third year and an NBA-out clause. In July 2019, he committed to the Phoenix for their inaugural season.