[1] In October 2010, the filly was sent to the Tattersalls sales where she was bought for 1,200,000 guineas by the bloodstock agent Dermot "Demi" O'Byrne on behalf of John Magnier's Coolmore organisation.

Ridden by her trainer's son Joseph O'Brien, she won by two and a half lengths from her stable companion, Cabin, and ten other fillies.

[6] In the Irish Oaks three weeks later, Was appeared to be badly hampered in the straight before finishing fourth, beaten more than five lengths by Great Heavens.

On 30 June Was started 5/2 favourite for the Pretty Polly Stakes and finished second, half a length behind the winner Ambivalent and a neck ahead of Shirocco Star.

Was retired from racing in 2014 and was bred to War Front, to whom she produced the filly Darkness Falls in January 2015[7] and the colts Globe Theatre (2016) and Knight of Malta (2017).