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Mammoth 200 mandatory gear list

Mammoth 200 mi · Mammoth Lakes, California · Early October 2027 (date to come; 2026: Oct. 2–6)

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From the race's official list (as published when we read it, October 22, 2026 (manual updated Sept. 29, 2026)). Rules can change: check the official list before race day. The Gear Fox isn't affiliated with the race.

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Quick answers

What is the mandatory gear for the Mammoth 200 mi?

Waterproof jacket with taped seams, Headlamp + spare batteries or battery pack, Second headlamp, Room for 3 L of water, Gloves (light or liner is fine), Warm hat or Buff, Waterproof pants, Spare long-sleeve layer, Cell phone, Power bank (10,000 mAh or more), GPS device with the course map, and a way to recharge it, Collapsible cup, Emergency bivvy, Whistle, Extra food: what you plan to eat + 400 calories, Electrolytes, Toilet paper + 2 ziplock bags.

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