Complex sentence: He followed up his win at Newcastle by winning the Christmas Hurdle at Kempton Park Racecourse in Surrey, England, where he beat Starluck by a short head, keeping him in the running to win the Triple Crown of Hurdling.
Split into simpler sentences: He followed up his win at Newcastle by winning the Christmas Hurdle at Kempton Park Racecourse in Surrey, England. There, he beat out Starluck by a short head, keeping him in the running to win the Triple Crown of Hurdling.