Horo played at the
1985-1988 Rugby League World Cup and the
1995 Rugby League World Cup. In New Zealand he played for the
Te Atatu Roosters in the
Auckland Rugby League competition and he later represented the
Parramatta Eels,
Western Suburbs Magpies and the
Auckland Warriors in Australian competitions. He played for the
New Zealand Māori side at the
1986 Pacific Cup. Horo played 16 tests for the Kiwis over a ten-year period. He had stunning start to his international career starring in a 13-6 upset win over
Australia. He held his Kiwi spot in 1988 with his brother
Shane Horo playing in the 66-14 win over
Papua New Guinea and the 12-10 win over
Great Britain at the Addington Show Grounds in Christchurch. The following year he played against Australia before missing the 1989 Kiwi Tour. Horo regained his Kiwi spot in 1990 under a new Kiwi coach, however for the next four seasons injuries and being out of favour with Kiwi coaches resulted in him not being selected, including missing the Kiwi tour in 1993 (hindsight suggests he and other shock omission
Tony Iro should have been selected). ==After Parramatta==