David ClarkDOB: 24 June 1953
Los Lunas, NM
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As of March 2024, I’ve been running and tracking miles for 55 years. I just hit 148,700 miles and still hope to someday reach 155,343 (250,000 km) but the miles are coming more slowly now.
I’m still running 30 miles a week and racing most weekends but now it is usually only a 5K. I figure I have run about 1350 races from 200m to 60km, and once had a 7 year-eleven month streak without missing a day.
I’ve run 40 marathons, and run in 12 countries and 45 states. I’ve run from -38F to +116F, -282 ft to +14,115 ft above sea level. I am now pursuing tamer goals like running in all of Ohio’s 88 counties
(should finish that project this year).
Tomorrow, out of bed for another run!
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David Clark
DOB: 24 June 1953
Los Lunas, NM
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(updated Nov. 2020)
I recently hit 142,000 despite a couple of foot surgeries and a kidney transplant over the last couple of years. Coming up on 52 years of running in the Spring with somewhere around 1200 races so far. My next big goal is 250,000 km ( 155,343 miles). Should take 6 years or so. It doesn't get any easier!! 
I started running in 10th grade because all my friends went out for the high school track and cross country teams. I was truly terrible, but kept it up and got better. I ran cross country in college and kept it up in the Army and afterwards. Part of it is the thrill of competition, part of it is the good feeling of being fit, and part is stress relief and cardiac health.
In college, a teammate gave me a copy of Joe Henderson’s “LSD: The Humane Way to Train” and it totally transformed my training. I had my first 3000 mile year in 1984 averaged over 3500 miles a year until 2009 with a top year of 4046 miles. In all that time, my long-suffering wife has accepted my habit and compulsion so we just mold our lives around running. My best times are surely behind me but out of about 800+ races, I have PRs of 16:54 for 5K, 59:39 for 10 miles, a 2:50:14 marathon, and a 5:05 50K trail run. I
've been fortunate to stay healthy and biomechanically sound (except for occasional hockey and rock-climbing injuries). I've also been fortunate to find good running clubs that provide an extra measure of motivation - I’m still doing about 55 miles a week and a full schedule of weekend races. This year, I’ll be running in the New Mexico Senior Olympics (5k, 1500, and 800) for the first time where I will get to compete against all the other old farts. Now I have my eyes set on 155,343 miles - 250,000 km, just so I can say that I've run “a quarter million kilometers”.