It was a busy day of action in the provincial Football Championships in both Munster and Ulster, while new SFC champions were crowned in Donegal, Tipperary and Waterford.
In a tight Ulster Club SFC quarter-final, Thomas Canavan held his nerve to point an injury-time free to guide Errigal Ciaran past Ballinderry.
His last-gasp point was the difference between the sides as the Tyrone champions claimed a 0-11 to 0-10 victory at Healy Park.
Both sides had a player sent-off in the second half as the Derrymen lost the services of Conor Wilkinson, who picked up a second yellow card, and Errigal's Damien McDermott earned a straight red card for an off-the-ball incident.
Collie Devlin had cancelled out Errigal's early advantage in Omagh, sending over three points to make it 0-5 apiece at half-time.
Errigal enjoyed a purple patch when the second half got underway, landing five points on the trot as Canavan and Brian Horisk scored a brace each and Davy Harte also split the posts.
But Ballinderry clawed their way back into contention with Dermot McGuckin (0-2), Kevin McGuckin and ex-Derry star Enda Muldoon reeling off points.
Devlin levelled the game with just a minute-and-a-half remaining, only for Canavan to seal it for his side with a dramatic late free.
Errigal await the winners of next Sunday's Ulster quarter-final between reigning All-Ireland champions Crossmaglen Rangers and the newly-crowned Donegal champions, St. Eunan's.
Today's Donegal decider in Ballybofey went St. Eunan's way as they beat Naomh Conaill 1-7 to 0-9 despite having substitute David McGinley sent-off.
Lee McMonagle's 50th-minute goal was critical as the Letterkenny-based club fought their way to their 13th county title, with wing back Mark McGowan landing the point that split the sides in the end.
McGowan converted a '45' with just two minutes of normal time remaining, and Naomh Conaill were unable to conjure up a response, leaving St. Eunan's to celebrate their first Donegal SFC success since 2009.
It was a desperately disappointing finish to the final for Naomh Conaill who were armed with a 0-8 to 0-6 advantage with ten minutes to go.
McMonagle's goal came soon after as the increasingly influential Rory Kavanagh fired a long ball into full forward Ross Wherity and he laid off for McMonagle to fire past goalkeeper Stephen McGrath.
Daragh Gallagher took his tally to 0-5 (0-3f) as he pointed within a minute, bringing Naomh Conaill level at 0-9 to 1-6. However, McGowan closed out the scoring for the new champions.
St. Eunan's ended the game with 14 men on the pitch after McGinley received a straight red card for clashing with Marty Boyle off the ball.
Antrim champions St. Gall's and Kilcoo, this year's Down title holders, will clash in the last-four of the Ulster Championship.
St. Gall's had plenty to spare against Fermanagh's Tempo as they ran out 1-15 to 0-9 winners of today's quarter-final encounter at Brewster Park.
Early points from Kevin Niblock and CJ McGourty set the visitors on their way and Aodhan Gallagher side-footed home the only goal for a 1-12 to 0-3 advantage at the break.
Tempo rallied early in the second period, looking suitably fired up as Ciaran McElroy mustered a brace of points and Thomas Campbell also slotted over.
But the 2010 All-Ireland champions were not to be to denied despite match-ending injuries to Kevin McGourt and Sean Burke causing some concern.
In Clones, a six-point salvo from Paul Devlin drove Kilcoo to a deserved 0-13 to 0-7 success against Ballybay from Monaghan.
The game might have turned out differently for the Monaghan champions had Thomas Kerr's first half shot not been cleared off the line by Sean O'Hanlon.
Devlin's accuracy in front of goal was key. He struck three successive points before half-time to give his club a 0-6 to 0-3 advantage.
Ballybay had Drew Wylie sent-off for a high challenge on Devlin as closing points from Ryan Johnston, Devlin and Paul Green wrapped up the win for the Mourne men.
Meanwhile, last year's winners Thomas MacDonaghs relinquished their grip on the Tipperary SFC title as Clonmel Commercials beat them 1-9 to 0-5 in Thurles this afternoon.
Clonmel became county champions for the first time since 2002 as man-of-the-match Colman Kennedy's goal, early in the second half, proved hugely important.
The Waterford SFC final will be replayed next Saturday at 7pm after the Nire fought back for a 0-8 to 2-2 draw with Stradbally at Fraher Field.
2008 champions the Nire had led 0-4 to 0-0 early on and by 0-6 to 1-1 at the break, but Stradbally, who have won two of the last three finals, had the goal-scoring touch.
Robert Ahearne fisted a Shane Ahearne free to the net for his second goal in the 41st minute, giving Stradbally a slender advantage at 2-2 to 0-7.
But Seamus Lawlor landed the levelling point for the Nire, producing the fourth ever draw between these clubs in county finals.
Dr Crokes have set up a Munster Club SFC semi-final showdown with new Tipperary champions Clonmel Commercials in two weeks' time.
Crokes saw off Clare champions Kilmurry-Ibrickane by 2-8 to 0-13 today and it was a far from comfortable afternoon for the Kerrymen in Quilty, despite goals from Colm Cooper and Brian Looney.
Cooper settled them with an early goal, but Kilmurry almost had a green flag of their own as Enda Coughlan was denied by a tremendous stop by David Moloney.
A key component of Kilmurry's recovery was the pinpoint free-taking of Ian McInerney. He got them off the mark along with an effort Johnny Daly, while Peter O'Dwyer gleaned a number of balls in midfield.
Jamie Doolan landed the last point of the first half to give Crokes a 1-4 to 0-5 buffer, and they found an extra gear when the match resumed as Doolan and Looney shot them five points clear.
The Kerry champions made it 1-3 without reply when Looney netted in the 41st minute, leaving Kilmurry 2-7 to 0-5 behind.
Credit to the Banner men, they mounted a stunning response and as the game swung in their favour, Noel Downes and McInerney whittled the lead down to a single point before Crokes just about held on.
Cork champions Castlehaven overcame the challenge of Limerick's Dromcollogher-Broadford by 1-15 to 0-7 in today's other quarter-final tussle in Clonakilty.
They will face either Stradbally or the Nire in the last-four of the Munster Championship, with those clubs due to replay the Waterford final next Saturday night.
Castlehaven used a strong wind to coast into a 0-6 to 0-0 lead with Dermot Hurley, Mark Cahalane and Brian Hurley among their early scorers.
Drom-Broadford improved coming up to the break, reducing the arrears to 0-7 ro 0-4, but the game was over as a contest some ten minutes from time.
Substitute Shane Nolan found the net to move Haven 1-10 to 0-6 ahead and Mike Boyce's dismissal left Drom-Broadford down to 14 men for the remainder.
A final point from Cork Under-21 forward Brian Hurley sealed Haven's passage through to that semi-final which is scheduled to be played on Sunday, November 18.
Kilmurry-Ibrickane (Clare) 0-13 Dr. Crokes (Kerry) 2-8, Quilty
Castlehaven (Cork) 1-15 Dromcollogher-Broadford (Limerick) 0-7, Clonakilty
Tempo Maguires (Fermanagh) 0-9 St. Gall’s (Antrim) 1-15, Brewster Park
Ballybay (Monaghan) 0-7 Kilcoo (Down) 0-13, Clones
Ballinderry (Derry) 0-10 Errigal Ciaran (Tyrone) 0-11, Healy Park
Naomh Conaill 0-9 St. Eunan's 1-7, Ballybofey
Clonmel Commercials 1-9 Thomas MacDonaghs 0-5, Thurles
Stradbally 2-2 The Nire 0-8, Fraher Field