In New Zealand's first Test, against England in Christchurch in January 1930, Blunt made more runs and took more wickets than any other New Zealander (45 not out and 7; 3 for 17 and 2 for 17) as New Zealand lost by 8 wickets. He played in all of New Zealand's first nine Tests: four against England in 1929–30, three against England in 1931, and two against South Africa in 1931–32. His highest Test score was 96 against England at Lord's in 1931.