Glencar/Manorhamilton suffered a 2-9 to 1-9 loss to Leitrim Gaels in their concluding round-robin game but still managed to qualify for the quarter-finals of the Leitrim Connacht Gold senior football championship, thanks to favourable results elsewhere.
Dromahair's 0-9 to 0-6 win over Aughnasheelin was the key one - as it helped ensure Glencar/Manor held onto a top-six finish.
A fit-again Ryan O'Rourke inspired Division 1 league winners Fenagh St Caillin's to 1-17 to 1-11 win over Ballinamore Sean O'Heslins to secure their place in the knockout stages.
In the rematch of last year's county final, Eamonn O'Hara's Mohill beat holders St Mary's by 1-11 to 0-11 to secure top spot in the final group standings and a place in the county semi-finals.
Mary's will join them in the last four despite suffering their first defeat of the round-robin stage.
Saturday's Leitrim SFC Round 4 results
Mohill 1-11 St Mary's 0-11
Fenagh/St Caillin's 1-17 Ballinamore SOH 1-11
Leitrim Gaels 2-9 Glencar/Manorhamilton 1-9
Dromahair 0-9 Aughnasheelin 0-6
Aughawillan 6-12 Gortletteragh 2-11.
Quarter-final pairings
Ballinamore v Glencar/Manor
Leitrim Gaels v Fenagh/St Caillins
Semi-finalists
Mohill & St Mary's
Relegation semi-finals
Aughawillan v Gortletteragh
Dromahair v Aughnasheelin.
