The Lean, Mean Runner Bean
I've been running since 1976, mainly off-road with plenty of mud and/or hills, and dabbling in triathlon & duathlon since 2012. I've never been a high-mileage man, averaging 20-25 mpw, but have clocked up 30-40,000 miles over the years. My 10K PB is sub-34 from 2003.
Professionally, I'm a Linux sysadmin, data and scripting geek.