He made his Test debut in February 1997 and made his maiden Test hundred soon after, against Australia at
Hobart in summer of 1997–98. He made 3 more hundreds in his international career, two against Zimbabwe and a vital one at Lord's in 1999 to help give them a rare away series win. After nine Tests without a half century he lost his place in the team and only played occasionally from there on in. Horne, along with
Nathan Astle, currently holds the record for a 4th wicket partnership for New Zealand totalling 243 runs against Zimbabwe in Auckland during the 1997–1998 season. ==After cricket==