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Owned by Jeffrey
I’m Coach Jeff, and I’ve spent years working with runners and triathletes at every level — from first-time racers to Ironman and Boston qualifiers.
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My newest Book
Check out my latest book! Endurance Engine. A guide to performance and longevity. Bookstore – Team Prs Fit
0 likes • 1d
You can a copy here.Bookstore – Team Prs Fit
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@jeffrey-kline-7345
I’m Coach Jeff, and I’ve spent years working with runners and triathletes at every level — from first-time racers to Ironman and Boston qualifiers.
Active 1d ago
Joined Dec 4, 2025