He was known as the "Demon of Frome", a nickname coined by journalist, Alan Gibson.
He played 194 first-class matches and 209 one-day matches, including 4 one-day finals, winning the Benson & Hedges Cup in 1981 and 1982 and the Nat West Trophy in 1983.
Dredge was not selected for the final of the Gillette Cup in 1979, but played the following day in the crucial win over Nottinghamshire which clinched the John Player League .
For much of his career he was overshadowed by Test bowlers Joel Garner, Ian Botham and Vic Marks, but he did win one man-of -the-match award by taking 4-23 against Kent in the 1978 Gillette Cup quarter-final.
Dredge was involved in the extremely close finish to the John Player League in 1976 when he was run out on the final delivery of the last match of the season, going for the run that would have won Somerset a first major trophy.