Rabs made three changes for the Sectional League Cup tie by introducing Jim Coulter,Jim Meechan and Kieran McAleenan to the starting eleven.
In the opening minutes Diack headed over for Rabs then in the 13th lobbed the ball over home keeper Ryan Cherrie but his effort went past the post. A minute later Pace took the lead when McAteer ran through the Rabs defence before firing past Robertson. In the 26th minute Rabs grabbed the equaliser when a Coulter free-kick found Coakley and from his assist Iain Diack found the net.
In the 38th minute Cherrie made a good save by tipping Meechan's low drive from distance round the post then at the other end Robertson was forced into a low diving save from McAteer then on the stroke of half-time the same player saw his goalbound effort deflected for a corner kick.
Half-Time Dunipace 1 v Rob Roy 1.
Five minutes into the second half the first chance fell to Dunipace with keeper Robertson pushing a Hasting drive wide for a corner. Then in the 54th minute Rabs surged ahead when a McVey corner was cleared as far as Kieran McAleenan who sent a well placed 20 yard volley past Cherrie.
Dunipace were still in the game with Batchelor sending a good chance over the bar. Rabs made their first substitution in the 57th minute when Adam replaced Coakley. On the hour mark only a timely block by Brown prevented Bradley from adding to Rabs tally. In the 64th minute Rabs sent on Frye for McAleenan.
In the 74th minute Rabs made it 3-1 in their favour after good work fom Adam, Iain Diack finished the move by sending the ball home. Two minutes later Scott Adam made it four from inside the box despite the close proximity of Pace defenders to record his first competitive goal for the club. Rabs then withdrew Murray for Easton.
With Rabs now well on top they made it five with the goal of the match when Willie McLachlan sent a free-kick high over the out stretched arms of keeper Cherrie from nearly forty yards.
Full Time; Dunipace 1 v Rob Roy 5.
Verdict; A much improved second half performance from Rabs, once they went ahead they always looked like retaining the lead.
Ref Watch; Referee Gary Robertson kept the game under control but gave some baffling decisions throughout the match. Produced two yellow cards.