[1] A member of the successful North County, Mooney is a medium-pace bowler and competent lower-order batsman.
[2] Mooney has often reserved his best efforts at international level for fixtures involving more exalted opposition, most notably against Zimbabwe at Clontarf in June 2000, when he removed both Andy and Grant Flower for nought in the process of contributing 4-24 to Ireland's forlorn defence of a meagre total.
Three years later, Mooney's 2-19 was a crucial component of Ireland's 10-wicket victory over the same opposition at Stormont.
An integral member of the bowling unit which served Ireland so well, Mooney took eight wickets at 25.12 (including 3–10 against Uganda) as Ireland claimed the runners-up position and consequent qualification for the 2007 Cricket World Cup.
On 20 April 2007, after Ireland's campaign in the 2007 World Cup, where he played one match in the tournament and the team qualified for the super eights, Mooney announced his retirement from cricket at the age of 30.