
Beginner to Ironman in 5 Months: Running Focus
From The Exercise Engineer by Lou Kelly
February 27, 2026 · 15 min · Season 1 · Episode 79
About this episode
Lou Kelly reflects on the final week of training for an Ironman, focusing on the running discipline and the mental challenges faced.
One week out from race day, I dive into the final discipline of the Ironman: The Run. After a lifetime of running for PB times and headspace, I reflect on the humbling reality of training for a marathon that starts after 180km of cycling. From the "syrup-leg" feeling of brick runs to the mental toll of losing speed to gain endurance, this episode is a candid look at the physical and psychological shift required to become an Ironman runner. Welcome to the Ironman Diaries: 1 Week to Go! My Running History: From University Half-Marathons to 3:20 Fulls. The Identity Crisis: Runner vs. Triathlete. Lesson 1: When your passion becomes a chore. Lesson 2: Letting go of the "Runner Self" and chasing new paces. Lesson 3: The Zone 2 Survival Guide (Audiobooks, Fuel, and Shoes). Lesson 4: The "Brick Run" experience (Running through syrup). The "Brick Run Banana" and fuelling for the 42.2km finish. What’s next? Weight gain, gadgets, and pre-race tears. Prioritise the Weakness: Because running was a strength, it often got the "leftover" energy after cycling sets, turning a hobby into a chore. Acknowledge this mental fatigue early. Release the…
People in this episode
Host: Lou Kelly
Topics covered
- Ironman training
- marathon running
- mental endurance
- brick runs
- athlete identity
Keywords
- Ironman
- running
- marathon
- training
- endurance
Mentioned in this episode
Books & works: Ironman Diaries
More episodes of The Exercise Engineer
- Beginner to Ironman: Pre-Race Debrief · March 18, 2026 · 21 min
- Beginner to Ironman in 5 months: 4 Days Out, My Final Thoughts · March 3, 2026 · 22 min
- Beginner to Ironman in 5 Months - 5 Key Lessons from The Bike · February 22, 2026 · 29 min
- Running advice all women NEED to listen to today! · February 19, 2026 · 40 min
- Beginner Triathlete to Ironman: The Swim · February 16, 2026 · 16 min
- The February Reset - Why your 2026 actually starts NOW · January 28, 2026 · 34 min
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