A product of Westlake Boys High School in Auckland, Abercrombie had a short-lived college basketball stint with Washington State before debuting in the Australian NBL in 2008 with the Breakers.

Abercrombie also played four seasons in the New Zealand NBL and had stints abroad in France, Spain and Turkey.

Post playing career, he became commentator and courtside reporter for Australian NBL including all home games for the New Zealand Breakers since the 2024-25 season.

[6] After returning home following his college stint, Abercrombie joined the New Zealand Breakers in the Australian NBL as a development player for the 2008–09 season.

[9][10] In the 2010–11 season, Abercrombie helped the Breakers reach their first ever grand final series, where they defeated the Cairns Taipans 2–1 to win their maiden NBL championship.

[12][13][14] In January 2016, Abercrombie passed Kirk Penney as the club's all-time leading scorer.

[15] Due to Penney's return to the club for two seasons, Abercrombie had to pass him again in October 2018 to reach 3227 points in 276 games.

[18] In 2019–20, Abercrombie became the second player in NBL history (after Daniel Kickert in 2016–17 and 2017–18) to join the exclusive 50–40–90 club.

[37] In 2019, Abercrombie played half a season with the Wellington Saints and helped them win a championship while claiming Grand Final MVP honours.

[38][39][40] During the 2013 NBL off-season, Abercrombie took part in mini-camp opportunities with NBA teams such as the San Antonio Spurs, Milwaukee Bucks, Houston Rockets and Dallas Mavericks.