Career
She represented Ireland at the 2008 Summer Olympics in Beijing, and competed in the women"s 100 m backstroke. Cooney swam in the fourth heat, where she finished in seventh place and thirty-first overall, with a time of 1:02.50. Cooney also set two national records for the 50 m and 100 m breaststroke events at the 2008 Irish National Championships in Dublin, and another for the medley relay team at the 2009 FINA World Championships in Rome, Italy.