Ireland captain Will Porterfield was disappointed his side's fine batting effort counted for nothing in the eventual six-wicket defeat by England at Malahide.
Porterfield struck a classy 112 in front of a packed crowd at the new home of Irish cricket, in County Dublin, and a target of 270 for victory looked tough when England slumped to 48-4 thanks to some fine bowling from Tim Murtagh and Trent Johnson.
But a scintillating unbeaten stand of 226 between captain Eoin Morgan and Ravi Bopara, who both hit centuries, saw England over the line with seven overs to spare.
"It was nice to get a hundred but a shame to come out on the losing side," Porterfield said.
"Coming and pulling on the Ireland shirt against England is always a little bit special and it was nice to get a few in a game like this.
"(At halfway) we were pretty confident, 270 on that wicket with our bowlers I think we'd have fancied our chances, especially the start that Murts and TJ gave us .
"We're disappointed but the two lads played really well and we didn't build a spell of sustained pressure really.
"The way Tredders bowled there I thought the spinners would come into the game, taking the pace off the ball, but once the ball got slightly softer it didn't grip as much as we thought.
"You can't take anything away from Moggy and Ravi, the way they played as well, but we're disappointed we couldn't put them under pressure.
"The crowd were fantastic, they were giving when Ravi and Moggy were going well there in the middle they were still giving us great support, and that's great to see. Hopefully next time we can get across the line for them."