Hoadley was a right-handed batsman who bowled right-arm off break. Hoadley made his first-class debut for Sussex against Warwickshire in the 1975 County Championship. He made six further first-class appearances for the county, the last of which came against Kent in the 1976 County Championship.
In his seven first-class matches, he scored a total of 202 runs at an average of 18.36, with a high score of 58.
This score was one of two fifties he made and came against Hampshire in 1975. Hoadley also made three List A appearances for Sussex in the 1975 John Player League against Warwickshire, Nottinghamshire and Kent.
He scored just 13 runs at an average of 6.50, with a high score of 8 in these three matches.
