Clydesdale
n.— «My first year of triathlons was pretty much in the lower middle of people racing in my age group (35-39). Being the big guy that I was, I was basically happy with that and quickly becoming one of the faster guys in my area over 200 pounds (“Clydesdales” in racing parlance).» —“The new me” by Burns First Day Of The Rest Of My Life Nov. 12, 2004. (source: Double-Tongued Dictionary)