A right-handed medium-pace bowler, she played in twelve One Day International (ODI) matches, including at the 1988 World Cup.
A graduate of Dominican College Sion Hill, in County Dublin,[1] McDonald made her international debut at the 1988 World Cup in Australia.
[2] She went on to play in all nine of her team's matches, but managed only two wickets overall, the least of any specialist Irish bowler.
[4] McDonald had greater success in her three other ODI appearances, all of which came at the 1989 European Championship in Denmark.
[1] McDonald married Jonathan Garth, a member of the Irish men's side.