[5] At the 2013 IFDS World Championships in Kinsale, Ireland, he teamed with Jonathan Harris (sailor) and Russell Boaden to win the bronze medal in the Sonar Class.

[7] At the 2014 IFDS World Championships in Halifax, Canada, Harrison teamed with Harris and Boaden to win the bronze medal in the Sonar Class.

[8] In November 2014, Harrison shared the Yachting Australia Sailor of the Year with a Disability award with Daniel Fitzgibbon, Liesl Tesch, Jonathan Harris, Russell Boaden and Matthew Bugg.

[9] At the 2015 IFDS Championships in Melbourne, Australia he teamed with Boaden and Harris to win the silver medal behind the Great Britain crew.

[10] Harrison, Boaden and Harris won the bronze medal in the Mixed Three Person Sonar class at the 2016 World Championships held in Medemblik, Netherlands.