[1] After playing in the New Plymouth Boys' High School 1st XV for two years, Donaldson made his provincial debut for Manawatu in 1974 before joining Hawke's Bay in 1975.
[1] He continued his success with the All Blacks in 1978 with wins against the teams from Australia, England, and Scotland, but missed the matches against Wales due to injury.
[1] In March 1979, Donaldson played in South Africa with a World Invitation XV and then in the All Blacks' series against France, Australia and Scotland.
He subsequently lost his regular place in the All Black team to Dave Loveridge who was regarded as a more consistent performer.
Significantly, his only field time was during the historic 25–22 victory over the Springboks in Auckland when, late in the game, he replaced Loveridge, who was injured.