Conditions were humid, which meant slower-than-expected times for most of the top runners at the third Charleville International Half-Marathon.
Organised by North Cork AC, the race attracted more than 700 to the flat out-and-back course, with Sean Hehir improving one place from last year to take the honours in 1:06:14.
With one of the pre-race favourites, Joe Sweeney of DSD, having to drop out at five miles, Hehir had things all his own way as the Rathfarnham man eventually finished more than two-and-a-half minutes to the good.
The runner-up spot went to Ugandan visitor Ismail Ssenyange, who is currently based in Dubai. His time of 1:08.49 was well outside his best of 1:05.31 which he recorded in the United Arab Emirates last February.
Alan O'Shea, winner of the Cork Half-Marathon two weeks ago, had to settle for third in 1:09.33, with Sandis Bralitis (West Waterford) fourth in 1:10.55.
There was a clear victory for Claire Gibbons-McCarthy in the women's race, with the Leevale athlete's time of 1:16.05 giving her more than four minutes to spare over Cork Half-Marathon winner Emma Murphy of St Finbarr's.
Angela McCann (Clonmel) was third with Ann-Marie Holland of St Finbarr's having another consistent run to take fourth.