
Olympian-Designed Plan for Intermediate Runners Ready for a Breakthrough
A Sub-3:45 marathon requires more than long runs — it requires the right balance of endurance, pacing, aerobic strength, and recovery.
This 16-week Sub-3:45 Marathon Plan, designed by Olympic marathoner Ilya Tyapkin, gives you a clear, structured system to build fitness week by week — without burnout or confusion.
Built for runners training 4–5 days per week, this plan prepares you to confidently sustain ~5:20/km (8:35/mi) across the full 42.2 km
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