As a yearling he was sent to the Keeneland sales where he was bought for $600,000 by the British Bloodstock Agency.
[6] Southern Halo made little impact as a racehorse in Europe, finishing unplaced on both his starts.
[5] Southern Halo was retired to stud in Argentina, where he became one of the most successful stallions in the history of South American thoroughbred racing.
[6] Among his best progeny is the American Grade I winner and very successful sire More Than Ready.
[5] He died on November 19, 2009, in his paddock at the Haras La Quebrada near Buenos Aires.