McFarland achieved notable success during his youth, winning the Leinster Schools senior cup with Clongowes and an All-Ireland league medal with Clontarf.

He also played a crucial role in Trinity Rugby's promotion to the AIL 1A,[4] scoring match-winning tries in both the semi-final and final against Ballynahinch and Ballymena.

[2] Before turning professional, McFarland scored a hattrick against the Barbarian Football Club and also represented Watsonians RFC.

McFarland was called up to the Scotland 7s squad for the 2014 Sevens Grand Prix Series in Manchester where he made his international debut.

His exceptional skills and athleticism earned him a place in the Scotland 7s squad for the 2018 Rugby World Cup Sevens.