Dubase made his first class debut for the Border Bulldogs during the 2010 Currie Cup First Division competition, coming on as a substitute in their match against the Falcons in Kempton Park for his only appearance.
[5] Dubase didn't play any provincial rugby in 2012 and 2013, but did participate in the Varsity Shield for Alice-based university side UFH Blues from 2011 to 2014.
His performances earned him a recall to the Border Bulldogs side and he started three matches towards the end of the 2014 Vodacom Cup campaign.
[6] At the start of 2016, Dubase was one of six Border Bulldogs players that joined the Southern Kings' Super Rugby squad for a trial period as they prepared for the 2016 Super Rugby season.
[7] However, he returned to Border Bulldogs after he failed to be contracted for the Super Rugby side.