That made me laugh. I've had to give up on so many of my former rules ("nobody wearing headphones (pushing a stroller, chatting comfortably throughout the race, wearing basketball shoes, appearing to be under 12 or over 75........) shall beat me!"). Just recently I found myself about 2 miles into a 10k trailing someone in a button-down shirt -- looked like he was late for work and running to catch the bus. Defending the honor of singlet-wearers, I managed to pass him.
good week for me getting used to early summer weather, incl. 20-min tempo Weds. and parkrun Sat. in 19:28 (2nd overall, 2nd in age-grading) with no major hamstring issue. Same course in February I ran 19:44 and had major hamstring trouble afterward, so I'll count this as good progress.
have a great week,
Dave