Na Fianna and Scoil Uí Chonaill will contest the Dublin Adult Football League Division 3 promotion play-off final following contrasting wins last Sunday morning.
At St Mobhi Road, Na Fianna were pushed all the way by a battling Trinity Gaels outfit with the hosts eventually prevailing by 1-13 to 2-8.
Shay Cloherty's contribution for the winners cannot be underestimated with the full-forward accruing 1-7 over the hour, including five points from placed balls.
The hosts impressed from the outset with Farrell Aughney showing well at wing-back and they opened up a four-point lead before being pegged back after the concession of a penalty.
The midifeld pairing of Joey McGuirk and Paddy Collins delivered a solid showing in addition to sharing three points over the hour as Na Fianna built a four-point advantage by the end of the third quarter.
Once again, the visitors replied with a quick-fire 1-1 but the Glasnevin outfit regrouped well to confirm their win through notable performances by Thomas Connell, Kieran Hoolihan and Gareth Ryan.
"It was a very tough game," conceded Na Fianna manager Kevin Bulman. "I would argue that Trinity Gaels are the toughest and most difficult opposition to play against in this league and even though we threatened to open up a decent lead at times, they always came back at us.
"They have a very unorthodox style of play so it made it very difficult for us to impose our style on the game but we just about got there in the end," said Bulman.
It was a more straightforward affair in Westmanstown as Scoil Uí Chonaill proved far too strong for Garda, prevailing by 2-14 to 1-5. Goals either side of the first quarter from Tiernan Crowe and Neal O'Flynn handed Scoil the early initiative as they enjoyed a sizeable 2-6 to 0-4 interval advantage.
There were few signs of a home comeback after the break with the visitors comfortably repelling some sporadic passages of pressure with Barry Kirwan controlling the away full-back line with great efficiency.
Further up the field, Donncha Fenton struck seven points for Scoil Uí Chonaill while Eoin O'Carroll also chipped in with three points as the visitors increased their lead with progressive ease.
Aidan Mulvey, Ruairí Coady and O'Flynn also added points as the contest evolved, benefiting from the tireless industry of Louis Costello in their half-forward line.
"We beat Na Fianna in the league earlier in the year so we know what faces us in the decider," said Scoil manager Declan O'Sullivan. "We have nothing to feat from them," he added.