Eustice started his career in 1958 with West Adelaide and was a member of their premiership side in 1961. He usually played on the wing at West Adelaide and it was in that position that he won the 1962
Victoria (VFL) 16.23 (119) defeated South Australia 7.9 (51), at North Hobart Oval, 11 June 1966, crowd: 23,764 Western Australia 13.11 (89) defeated South Australia 10.14 (74), at North Hobart Oval, 13 June 1966, crowd: 13,969 South Australia 21.20 (146) defeated Victoria (VFA) 9.11 (65), at North Hobart Oval, 16 June 1966, crowd: 10,199 South Australia 14.7 (91) defeated Tasmania 9.13 (67), at North Hobart Oval, 18 June 1966, crowd: 23,368