Moc Chau, Vietnam
Vietnam Trail Marathon 70K
Runnable tea plantations and limestone single-track in the Moc Chau highlands — fast splits that punish bad pacing.
Logistics & Terrain
Terrain style. Rolling tea plantations, dirt single-track, limestone trails, and loose-rock orchards.
The killer variable. Rapidly changing pacing surfaces. VTM is highly runnable, which tricks athletes into spending glycogen far too early.
VTM unfolds across the Moc Chau highlands in the crisp early-year season. Profiles are less punishingly technical than VMM and significantly more runnable. That creates the trap: athletes hold road-style cadence through the tea fields, while rolling limestone quietly hammers stabilising muscles and drains glycogen.
Vertical Climbing Mechanics
Train transitions, not just volume. Include weekly 'over-speed' sessions where you accelerate immediately after clearing a rolling climb. Add one weekly stability block (single-leg work, ankle proprioception) — the loose limestone selects against weak stabilisers.
Nutrition Scaling
Faster splits mean higher heart rates and a stressed gut. Bias your meal prep to low-FODMAP, fast-digesting carbs (rice, oat-based gels) the 48 hours pre-race. Hold 70–90 g of carbs per hour and 500–800 mg of sodium per hour during the race itself.
Other distances at this event
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