Clement Cunniffe led the Leitrim scoring as the Wee county side opened their win account in NHL Division 3A - they edged out Monaghan 0-10 to 0-7 at Ballinamore this afternoon.
Cunniffe, the St Mary's marksman, accumulated a personal haul of 0-9 as the home side proved too strong for Gerry Murphy's Farney side.
Leitrim led 0-4 to 0-2 after a low-scoring first half, played in difficult conditions, and won out despite a six-point tally from Toome clubman Stephen Lambe for the visitors.
A penalty goal from Shane Callan, midway through the second half, saw Louth pick up their second win of the league campaign as they accounted for Donegal in Letterkenny, running out 1-12 to 1-11 winners.
In Division 3B, Noel Boyce's Longford side failed to make it two wins out of two as they came a-cropper at Hyde Park. Roscommon, with corner forward Brendan Hanley notching their goal, registered a morale-boosting 1-15 to 2-7 win over the visitors, for whom Sean Browne grabbed a green flag.
Tyrone scored a thumping 2-23 to 1-9 win over their Ulster rivals Cavan at Breffni Park.
Cathal McErlean goaled as the Red Hands moved into a 1-6 to 0-6 lead and while Ronan O'Hagan struck a major for the hosts, Kevin McNaughton's victors were never in any real trouble.
Terry McIntosh turning in a captain's display for Tyrone at centre-back, while Justin Kelly and Ryan Winters proved constant threats to the Cavan defence.
Donegal 1-11 Louth 1-12, Letterkenny
Leitrim 0-10 Monaghan 0-7, Ballinamore
Roscommon 1-15 Longford 2-7, Hyde Park
Cavan 1-9 Tyrone 2-23, Breffni Park