Career
At club level he represented Sale. Mycock captained Sale Rugby Club on 29 May 1936. Mycock said one of his principal aims would be to strengthen the junior teams and try to bring on the clubs own players.
He joined Harlequins on 5 December 1936.
Hewas first selected for England on 7 January 1939/ playing at Number 8. He was later capped for England against the 1947 Australia tourists.
lieutenant is suggested that he was the first captain to remove forwards from the line out and put them in the backs. On 11 November 1944 he captained the Combined Services.