My first ever 10k was in 1985 or something. Run the World in Leicester. Drinking beer all day, running holding hands with some blondes we picked up in the beer tent. 40 minutes to cross the start line so we could wave to international sports superstart Willie Thorne and jog through the crowds to the end. Nobody took my time, least of all myself. I didn't count it as a personal best or the personal worst that it would be now. I can't say I even considered it a race.
See that race in 1985? Probably more of a race than the British 10k