How Long Should Your Long Run Be? Marathon vs Half vs 10K + Fueling & Long Run Mistakes

In this Marathon Handbook Podcast episode, Michael Doyle, Katelyn Tocci, and Alex Cyr unpack what actually defines a long run—and how long is “long” for different goals (00:07). After some pre-run chaos (Patriots/Boston accent talk) (01:14), Alex breaks down his Houston Half Marathon PR and the wild sub-elite start experience (07:03), including pacing strategy and the trio finish (21:17). Then the crew goes deep on long-run philosophy: how to structure it across a training block, when to add quality like fast finishes or marathon-pace intervals, and why many runners cap the long run around three hours (30:13) (53:10). They also cover fueling basics—carbs per hour, gels, gut training, and modern trends like hydrogels (1:15:16) (1:23:23), before Coach Katelyn lists common long run mistakes (too fast, skipping fueling, skipping deload weeks, poor recovery, and more) (1:30:22). Mailbag submissions are open at [email protected] (1:48:55), and Katelyn teases a 10-mile race update for next week (1:51:46).

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