Twelve days later she contested a maiden race over the same distance at Leopardstown Racecourse and recorded her first success, beating the colt Clear Blue Water by a short head.
[5] On her three-year-old debut, Key Change was matched against colts and started a 12/1 outsider for the Listed Ballysax Stakes over ten furlongs at Leoprdstown on 12 April.
[6] Two weeks later she started favourite for the Avonmore Classic Trial at Gowran Park and won by one and a half lengths from the Aidan O'Brien-trained His Excellence.
Murtagh positioned her just behind the leaders as first Russian Snows, then Quota, then Shemozzle set the pace before sending the filly to the front at half way.
[9] On 21 September Key Change was matched against colts and older horses in the Irish St Leger over fourteen furlongs at the Curragh and was made the 11/4 favourite.
After tracking the leaders she took the lead entering the straight but was overtaken approaching the final furlong and was beaten into second by the four-year-old Oscar Schindler.
Key Change remained in training as a four-year-old but made only one appearance when she was sent to France for the Prix Jean de Chaudenay over 2400 metres at Saint-Cloud Racecourse on 18 May.