The 18-year-old anchored the Comets' innings with a superb knock, bringing up his ton with a six as he made 126 from just 128 balls in a competitive total of 5-305.

However, it wasn't enough to deny Ireland a second straight win in Canberra, the visitors reaching the target with 10 balls to spare in a thrilling finish at Manuka Oval.

Condon got away to a shaky start before finding his feet, the opener just clearing the fence over the fielder at deep long on to reach three figures.

"It's ridiculous. I never thought this day would come and it's massive for me in the future," Condon said.

"I couldn't have swung any harder and I just cleared the boundary.

"I had no idea what score I was on.

"The batting powerplay was on with only three fielders out so I had to have a dip.

"I was trying to do my part for the team, but turns out I was on 95 at the time.

"I thought I put it straight to him, but a bit of wind put it just over his head."

Condon was the leading run-scorer in the Cricket ACT first-grade competition last season, but now plays his club cricket with Easts in Sydney under the tutelage of former Australian star Michael Bevan.

The Comets put in a much improved performance after going down by 124 runs in the opening 50-over game on Tuesday.

They were in the box seat when Ireland slumped to 5-161, but Andrew Balbernie made 86 and last man in Graeme McCarter hit the winning runs for a narrow victory.

Ireland will now head to New Zealand to continue its tour before the World Cup next year.