August 2, 2026 · 9 MIN
Sub-3:30 Marathon Training Plan: The Intermediate Runner's 18-Week Guide
Breaking 3:30 requires sustaining 4:58/km for 42.2km — a target that demands structured threshold development, race-pace long runs, and disciplined taper. Complete 18-week plan for runners currently running 3:45–4:15 marathons.
