November 1 - Britain's Michael Whitaker (pictured) has returned from his four month doping ban with a victory in the United States.
The Olympic silver medallist was found guilty in September of inadvertently doping his stallion Tackeray.
But his ban was backdated to June, when the International Equestrian Federation (FEI) announced it had found traces of altrenogest, a substance banned for use in stallions, in a random sample taken in May.
Competing at the Sycracuse Invitational Sporthorse Tournament in New York, Whitaker made a winning return in the CN Gambler's Choice - a fancy-dress, top-score competition - on Udokus.
He also finished fourth in the three-phase Sporthorse Cup on Insul Tech Wonami Van Den Aard.
September 2009: Date set for Whitaker doping hearing
June 2009: Exclusive - British star latest top rider to be banned