Conor Thompson scored four goals as Pinhoe Gladiators beat Ottery St Mary.
Niall Barefoot scored the other, while Lewis Mooney, Will Kiloh, Ed Mullarkey and birthday boy Keir Durie played well.
Pinhoe Spears won 8-0 over AC Heavitree. Bradley Edwardson and Connor Densham scored in the first half before Edwardson completing his hat-trick and Will Dean, Morgan Cullen, Sam Webber and Jamie Vaughan-Ryall also notched.
Spears beat Avishayes 6-1 thanks to hat-trick from Morgan Cullen and goals from Bradley Edawardson and Jamie Vaughan-Ryall.
Tom Crees put Pinhoe Spears ahead in this Devon Cup first round game, only for Ivybridge to level. Sam Webber, Bradley Edwardson, Jamie Vaughan-Ryall, Morgan Cullen and an own goal completed the goals.