Triathlons and running (either road or track events).
I've been a triathlete for 30 years and competed in literally 100s of tris. Once upon a time I was considered one of the world's elite triers (my only official ranking is 7th at the Nike World Master's in 1998). I still compete at age 57 and I hold my own. I've coached cross country and track for 25 years (the last 18 at Ballard High in Seattle). I know a thing or two about endurance training and how to get the best out of yourself. I love to help folks reach their training goals.