12 Months to Marathon - Episode 74 - Rob Foster, From Hyrox Athlete to First Time Marathon Runner Age 42
Update: 2025-12-12
Description
In this episode, I chat with Rob Foster, a former Royal Marine turned hybrid athlete and coach, who’s proving that peak performance doesn’t stop at 40. Rob shares his journey from military life to gym ownership, to dominating HYROX events, and now, running back-to-back marathons in his 40s, including a blistering sub-3:00 finish in Dublin in his 2nd marathon.
We dive into:
- Rob’s military background and the old-school fitness mindset
- The transition from lifting and HYROX into marathon training
- Why endurance and strength can, and should, coexist
- What it's like to train for a marathon in your 40s (and still get faster)
- The importance of structure, simplicity, and the athletic mindset
- How Rob managed to run 2:58 in Dublin after HYROX, with no runs over 13 miles in training
- His approach to coaching everyday athletes through realistic, sustainable performance
Whether you're a hybrid athlete flirting with your first marathon or a distance runner curious about strength and HYROX, this one’s packed with practical insights and mindset gold.
📲 Follow Rob on Instagram: @robfoster__
📲 Follow John: @12monthstomarathon
👟 Join the free over-35 running community: Link in bio on Instagram.
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