My first live race was at Wimbledon 18 March 1976 heat 1 result; Dave Jessup, Barry Crowson, Bernie Leigh and Edgar Stangeland.
Strangely, first Wimbledon rider I saw win a race in a home meeting was Roger Johns who won heat 8 in the Wimbledon v Reading (CH) match 18 March 1976; Roger was also the first Wimbledon rider I saw win an away race when he won heat 2 at White City the following Wednesday, 24 March 1976.