2018 All-Ireland finalists Nemo Rangers failed to land a single point in the opening 43 minutes as they crashed out of the Cork SFC at the quarter-final stage against Castlehaven in Dunmanway on Sunday.
The modern aristocrats of Cork football trailed 0-03 to 0-00 after a wretched first half and it was their opponents who decided to push on in the third quarter.
A Michael Hurley goal two minutes into the second half made it 1-04 to 0-00 and 'Haven' would add three more points before Luke Connolly finally got Nemo off the mark.
The west Cork side, last champions in 2013, cruised to a 1-11 to 0-04 victory to formally end Nemo's abject Munster title defence.
Awaiting Castlehaven in the last four is divisional outfit Duhallow. The north Cork side, who last won the Cork title in 1991, earned their place in the semis thanks to a 0-13 win over Valley Rovers in Pairc Ui Rinn on Saturday evening, with veteran attacker Donncha O'Connor proving a key man in the forward division.
Their tie with Castlehaven will be a repeat of the 2012 Cork SFC final.
In the first game of Saturday's double header in Pairc Ui Rinn, St. Finbarr's got the better of city rivals Douglas with goals from Stephen Sherlock and Enda Dennehy securing a 2-08 to 0-11 victory.
The Barr's will meet Carbery Rangers in the semi-final after the 2016 champions breezed past Clonakilty by ten points (1-18 to 0-11) in Sunday afternoon's quarter-final in Dunmanway.
We now know the identity of the finalists in the Monaghan SFC with Scotstown still on course for a fourth title in a row as they saw off the game challenge of Maghercloone in Clones.
Early on, it looked like the reigning champions would win at a canter after shooting into a 1-04 to 0-00 lead but goals from Liam Óg Murray and Peter Ward dragged the underdogs back into the contest. However, Scotstown held them off to win 1-17 to 2-11.
Their opponents in this year's final are Ballybay, who overcame Conor McManus's Clontibret in the later semi-final, easing home on a 1-15 to 1-08 scoreline in the end.
The steady free-taking of veteran former inter-county star Paul Finlay proved pivotal and Ballybay have a shot at reclaiming the title they last won in 2012.
Mullinalaghta are one step away from winning three in a row in the Longford SFC after beating Clonguish by 0-12 to 1-06 on Saturday.
Clonguish fought back from 0-07 to 0-03 down at half-time to get within a point of the champions but the side managed by new Cavan boss Mickey Graham pulled away to set up a third successive final against Abbeylara.
County star Cillian O'Connor scored seven points for Ballintubber as they booked their place in the last four of the Mayo SFC with a 2-17 to 0-11 victory over Moy Davitts.
Awaiting them in the semi-finals are reigning champions Castlebar Mitchels.
Mitchels are seeking a fourth Mayo title in a row, progressed to the last four after dispatching Claremorris on a 1-20 to 2-09 scoreline.
James Horan is a leading contender to return to the post of Mayo manager but his Westport side went down by a point to Breaffy in Saturday evening's quarter-final.
Goalkeeper Rob Hennelly secured an 0-11 to 0-10 win with a late free.
Completing the semi-final line-up in Mayo are Ballaghaderreen, for whom a brace of goals from Darragh Kelly and another from Cian Hanley were crucial in a 3-11 to 0-18 win over Garrymore.
Following those weekend results in the Mayo GAA SFC it means the semi-finals are @BreaffyGAA v @Ballagh_GAA & @MitchelsGaa v @BallintubberCLG in two weeks time. We'll have those two games live on @MayoGAATV. #mayogaa #gaa— Mayo GAA (@MayoGAA) September 23, 2018
In the Armagh SFC, reigning champions Armagh Harps were dumped out of the championship by Crossmaglen Rangers, themselves seeking to end a drought in the competition which stretches back to 2015.
Crossmaglen led by five points at the break and burned off the challenge of the champions early in the second half with goals from Kyle Carragher and Johnny McKeever ending the match as a contest. They ran out easy 2-28 to 1-15 winners.
Friday night's quarter-final in the Athletic Grounds saw Ballymacnab account for Killeavy on a score of 1-10 to 0-03.
In the evening's other quarter-final, Cullyhanna disposed of Silverbridge in Crossmaglen on a handy 2-13 to 0-07 scoreline, Aidan Nugent and Kyle Reid scoring goals either side of the break.
The remaining quarter-final between Madden v Maghery Seán MacDiarmada is scheduled for tomorrow evening at 8.30.
2012 All-Ireland finalists Garrycastle had little difficulty in reaching the semi-finals of the Westmeath SFC, dismissing the challenge of neighbours Athlone on a 0-14 to 0-07, Alex Gardiner registering 0-08 of the victors' total.
Both sides had two players sent off - Garrycastle's Matthew Guiheen and Athlone's Mickey Greene were shown straight reds before James Dolan and Darren Costello picked up second yellows. Athlone finished with 12 men when they had no subs remaining to replace the black-carded Jordan Marshment.
Garrycastle now face into a daunting challenge against St. Loman's, Westmeath champs in four of the past five years and the 2017 Leinster finalists.
The other semi-final will see Mullingar Shamrocks face Tyrrellspass after Shamrocks' 2-08 to 0-08 win over The Downs in TEG Cusack Park this evening.
St Brigid's and Clann na nGael were already sitting comfy in the semi-finals of the Roscommon SFC but two match-ups on Sunday decided who would join them.
First, Roscommon Gaels edged out Padraig Pearses by 0-10 to 0-09 in Kiltoom and then a David Neary hat-trick enabled Strokestown to easily account for St. Faithleach's in the other game in KIlglass.
Colin Compton also shone, hitting 0-06 as Strokestown ran out easy 3-12 to 0-07 winners.
The weekend's action in the Derry SFC saw Ballinascreen edge out Greenlough by a point in a tempestuous quarter-final in Dungiven on Saturday afternoon.
Later in Owenbeg, 2002 All-Ireland champions Ballinderry were pipped - also by a point - by Watty Graham's in an entertaining quarter-final with 1-15 to 0-17 the final score.
Lavey and the Loup will have to meet again as an injury time free converted by Anthony McGuirk rescued a draw for Lavey in Glen.
Reigning champions Slaughtneil, pursuing their fifth straight Derry SFC title, face Coleraine in Owenbeg at 6pm this evening.
Reigning champions Moorefield bulldozed past Johnstownbridge wih an impressive second half display in their Kildare SFC quarter-final meeting in Newbridge.
The 2017 Leinster champions were in bother early on and trailed 1-08 to 1-04 at the break but completely demolished their opponents after the interval to run out eight-point winners, conceding just one more point in the process.
They became the first team to secure a place in the semi-finals with Athy and Sarsfields throwing in this evening at 5.30pm.
The group phase drew to a close in the Galway SFC and the quarter-final lineups are complete with Damien Comer's Annaghdown securing safe passage with a four-point victory over Barna on Saturday.
A day later in Group 2, Salthill Knocknacarra edged out Tuam Stars by a point, advancing to the quarters ahead of Killanin on points difference.
In Group 3, Caherlistrane advanced at the expense of Killererin - who had played all their matches before this weekend - with 3-16 to 1-11 win over Kilconly lifting them into second in the group and into the quarter-finals.
And in a low-scoring but dramatic encounter in Group 4, Moycullen missed two penalties but still progressed to the quarter-finals as a 0-08 to 0-08 draw with Monivea-Abbey saw them finish ahead of their opponents in the table on points difference.
Corofin, St. James's, Mountbellew/Moycullen and Milltown were already assured of reaching the quarter-final stage before this weekend's matches.
Here's the full draw for the quarter-finals in Galway.
DRAW for the Senior Football quarter finals:— Galway Bay FM Sport (@gbfmsports) September 23, 2018
Annaghdown V St James'
Mountbellew/Moylough V Moycullen
Corofin V Caherlistrane
Milltown V Salthill/Knocknacarra
In the Leitrim SFC, Glencar-Manorhamilton demolished Ballinamore by 14 points in Saturday's quarter-final replay to join Mohill, Aughawillian and St. Mary's Kiltoghert in the semi-final.