Godwin was born in
Connecticut, United States to British parents in 1920. The family returned to Britain in 1932. His first bicycle was a Wrenson's delivery bike which he used to run errands for a local grocer. He became interested in cycling because of the
1936 Summer Olympics.
Arie van Vliet's riding in the 1,000-metre time-trial inspired him; British amateur champion W. W. Maxfield was also an early hero. Godwin began racing three years later and rode the fastest 1,000m of the season at the Alexander Sports Ground. He was invited to trials in the Midlands to find riders for the next Olympics, despite not yet having won a race. He won a 1,000m at The Butts track in
Coventry on 29 July 1939. His chances of Olympic selection ended with the
Second World War. He envied
Reg Harris and Dave Ricketts for being selected for the world championship at a young age, "not that I had any claims to such honors but because their good fortune provided them with expert tuition and decent tracks for training. In the Midlands, this all seemed so far away." Godwin was an apprentice electrician in a
reserved occupation during the war, working for
BSA. But there was little competitive cycling and he rode at only 13 meetings between 1940 and the end of 1942. The change in war fortunes meant more sport in Britain from 1943. Godwin was unbeaten in five-mile scratch events and won the Cattlow Trophy at
Fallowfield,
Manchester, that year and in 1944. In the national championship of 1944, at which Harris made his breakthrough, Godwin won the five-mile. He repeated this success in 1945, adding the 25-mile title which he retained in 1946. In 1949 he won the 4000 metres event. He won the BSA Gold Column, offered by his employers, by winning the five-mile at
Herne Hill in south London in 1945. ==Post-war competition==