In
2005, Dowdell played his rookie NBL season with the
Perth Wildcats and, at the age of 18, was the youngest player in the competition. In the same year, he was named as NSW Junior Player of the Year by Basketball New South Wales. The Wildcats would go on to finish the season in seventh place with Dowdell receiving the club's Most Improved Player award. After his first NBL season, Dowdell played for the Albury Wodonga Bandits in the 2006
SEABL season. He was second in points per game (ppg) in the East conference (24.9 ppg) and ninth in rebounding (8.59 rpg). He was named in the 2006 All SEABL East team. In his second NBL season (
2006–07 NBL season) with the Wildcats, he established himself as a regular part of the Wildcats rotation averaging 4.3 points, 2.1 rebounds and 0.9 assists per game. The Wildcats finished in third place and he was awarded the club's Most Improved Player for the second time. After the
2006–07 NBL season, Dowdell played for the
Wanneroo Wolves in the
State Basketball League, where he averaged 27.5 ppg. He played for the Wolves for the 2007, 2008 and 2009 SBL seasons, being awarded the club's Most Valuable Player twice (2008 and 2009) and named in the SBL/NBL1 West All Star Second Team in 2007 and All Star First Team in 2008. In the
2007-08 NBL season, Dowdell's playing time and output would improve again and he went on to average 6.4 points per game and 3.9 rebounds. The Wildcats would go on to finish fourth and were knocked out of the semi-finals by the
Sydney Kings. At the end of the season, Dowdell was awarded the Coaches Award by the Wildcats coach,
Scott Fisher. Dowdell would again receive the club's Coaches Award for the
2008-09 NBL season despite his playing time reducing under new coach,
Conner Henry. The Wildcats finished fourth again but were eliminated in the first round of playoffs by the
Townsville Crocodiles. Dowdell left the Wildcats to play for the
Townsville Crocodiles in the
2009–10 NBL season where he played 30 games, averaging 3.1 points, 1.8 rebounds and 0.3 assists per game. Townsville finished the season third but were knocked out of the semi-finals by the
Wollongong Hawks. Following the 2009-10 NBL season, he played in the SEABL for the
North-West Tasmania Thunder. During his time at the Thunder, the team had a record of 13 wins and 9 losses and Dowdell was named as the SEABL Australian Youth Player of the Year. Following a single season with the Crocodiles, Dowdell signed to play for the Adelaide 36ers for the
2010–11 NBL season and played all 28 games for the 36ers, averaging 4.8 points, 2.6 rebounds and 0.7 assists per game. Adelaide finished the season in eighth with a record of 9 wins and 19 losses. After the NBL season, Dowdell played for the
West Adelaide Bearcats where his team finished fourth and lost in the semi-finals. He averaged 21.7 points, 10.6 rebounds and 2.9 assists and was named the Bearcat's Most Valuable Player. Dowdell once again changed clubs for the
2011-12 NBL season, this time moving north to the
Cairns Taipans. The Taipans finished fifth and only missed out on the playoffs by percentage differential. Dowdell averaged 4.0 points, 2.3 rebounds and 0.8 assists per game. In 2013, Dowdell joined the Canberra Gunners in the SEABL after a period away from basketball due to a degenerative hip injury. He was awarded the Most Valuable Player award for the season. In 2015, Dowdell played for the Queanbeyan Yowies in Division 1 of the
Waratah League where he was named in the league's All Star Five team. In his 196-game NBL career, he averaged 4.2 points and 2.3 rebounds per game. == Personal life ==