Fordoun were missing a number of key players as they looked to get backed to winning ways and lined up with no subs.
Marykirk made the ideal start when they stunned their hosts with the opening goal.
The visitors hit the woodwork on two more occasions as they enjoyed a decent opening 45 minutes. However, a Dean McComiskie double and a third from Kevin Hector had the Galaxy in charge at the break.
HT Fordoun Galaxy 3-1 Marykirk
The home side made a stronger start to the second half and ran out comfortable winners in the end.
Dean McComiskie completed his hat-trick and then grabbed himself a fourth, Kevin Hector got his second of the game while Nathan Keddie also scored a brace.
Derry Simpson and Darren Cruickshank got their names on the scoresheet before Logan Cruickshank came froward from the back to good effect and added his sides 11th goal of the game on a pitch which had cut up badly during the 90 minutes.
FT Fordoun Galaxy 11-1 Marykirk
Fordoun Galaxy: Mennie, A Stirling, L Cruickshank, Thomson, Davies, Simpson, Keddie, R Stirling, D Cruickshank, Hector & McComiskie.
Results from Sunday February 2
Fordoun Galaxy 11-1 Marykirk
Matrix Cup 1st Round
@Bar FC 1-4 Bervie
Lochside United 5-2 Northern Vaults
MCT 1-5 Fettercairn
St Cyrus 1-6 Hillside
The Old Bolag 2-3 Hudsons
Fixtures for Sunday February 9
Golf Inn v @Bar FC
Northern Vaults v Lochside United
St Cyrus v Marykirk
The Old Bolag v Fettercairn
Piggins Cup Semi Finals (10:30ko)
Bervie v Hudsons
Fordoun Galaxy v Hillside