Shareta is a dark bay or brown mare with a small white star bred in Ireland by her owner the Aga Khan.
Shareta made her only appearance as a two-year-old on 31 October 2010 in the Prix Ténébreuse for previously unraced fillies over 1600 metres at Saint-Cloud Racecourse.
A month later over the same distance at Chantilly Racecourse she recorded her first success when she won the Prix de la Chapelle en Serval, taking the lead 500 metres from the finish and beating the odds-on favourite Andromeda Galaxy by two lengths.
The filly was then dropped in class and stepped up in distance for the Listed Prix de Thiberville over 2400 metres at Longchamp Racecourse on 14 July.
Mourasana was again in opposition but her main rivals according to the betting appeared to be her undefeated stablemate Pacifique, the Prix de Malleret runner-up Campanillas and the André Fabre-trained La Pomme d'Amour.
The horses finishing behind Shareta included Snow Fairy, So You Think, St Nicholas Abbey, Galikova, Nakayama Festa, Workforce, Treasure Beach, Reliable Man and Masked Marvel.
On her first appearance as a four-year-old started favourite for the Prix Allez France at Chantilly in April but after leading for most of the way she was overtaken 100 metres out and finished third behind Aquamarine and Haya Landa.
In the Prix Corrida over 2100 metres at Saint-Cloud on 28 May, Lemaire adopted different tactics, settling the filly in fourth place before making a challenge in the straight.
Shareta struggled to obtain a clear run before finishing strongly but failed by a nose to catch Solemia to whom she was conceding two pounds in weight.
In a race run in what was described as a "torrential storm" of rain,[11] Shareta tracked the leader Was before making a forward move in the last quarter mile.
The Fugue took the lead a furlong out but Shareta stayed on strongly on the stands-side rail to overtake the British filly in the final strides and won by a neck.
[14][15] On her return to France Shareta ran for the second time in the Prix Vermeille on 16 September and started the 7/2 favourite ahead of Galikova in a thirteen-runner field.
On her final appearance of the year Shareta was sent to the United States for the Breeders' Cup Turf at Santa Anita Park on 3 November.