Leinster Lightning completed a 157-run victory over the Northern Knights with just over an hour to spare on the third day of the inter-provincial in Dublin.
Three wickets apiece from Eddie Richardson and Albert van der Merwe helped Leinster to a hard-fought win.
The hosts declared their second innings on 187-6 to set their opponents a target of 334 off 98 overs to win.
James Shannon (27) and David Simpson (24) battled hard, but ultimately in vain, to earn a draw for the Knights.
Richardson ended with figures of 3-24 and van der Merwe 3-35.
The Knights' best chance of surviving lay with opener Nick Larkin, but for the second time in the game, the North Down man ran himself out, following a mix-up with Lee Nelson.
Larkin had scored 247 against the same opposition in this competition last year, and his dismissal for 40 gave Lightning a tremendous boost shortly after lunch.
James Shannon batted a marathon 149 balls for his 27, but his dismissal by Van Der Merwe was quickly followed by that of Mark Adair to bring last man James Cameron-Dow to the crease.
It was perhaps fitting that the coup de grace was applied by Andrew Poynter, the stand-out batsman in the game with two fluent half centuries.
Cameron-Dow sportingly walked after a fine edge to wicket-keeper Fintan McAllister.
The win sees Lightning extend their lead to 20 points ahead of the Knights, ahead of their home clash with North West Warriors at the same venue in two weeks' time.
After making 290-9 in their first innings, the hosts had bowled their opponents out for 144 at College Park.
Leinster closed the second day on 166-4 to extend their lead to 312 runs with one day remaining.
The home side accumulated an impressive total in their opening innings of the three-day game, John Anderson top-scoring with 60 and Poynter contributing 54.
Cameron-Dow and Shane Getkate took three wickets each for the Knights.
The visitors lost eight wickets for only 39 runs at one stage as they struggled to a total of 144. Getkate scoring 34, Max Sorensen taking 4-34 and Eddie Richardson ending with figures of 3-28.
Poynter made 62 in his side's second innings and Simmi Singh 48, Adair and Imad Wasim both taking two wickets.