Race readiness guides

What each race demands on gut, hydration, heat, terrain, durability, pacing and taper, and when to start training each one.

• IRONMAN 70.3 · Oceanside, California (swim and transition in Oceanside Harbor, bike through Camp Pendleton, finish on the Strand), United States

  IRONMAN 70.3 Oceanside

  113.1 km · 70.3 mi · Late March or early April, Saturday

  Gut: MediumHydration: MediumHeat: LowTerrain: MediumDurability: MediumPacing: HighTaper: Medium

• Marathon · Lima, start and finish at Parque Kennedy, Miraflores (2026 route), Peru

  Lima Marathon (Lima 42K)

  42.2 km · 26.2 mi · Late May, Sunday (2026 edition: May 24, 2026)

  Gut: MediumHydration: MediumHeat: LowTerrain: MediumDurability: MediumPacing: MediumTaper: Medium

• Ultra · Olympic Valley to Auburn, California, United States

  Western States 100

  161.3 km · 100.2 mi · Last full weekend of June, Saturday 5:00 am start, 30 hour limit

  Gut: HighHydration: HighHeat: HighTerrain: HighDurability: HighPacing: HighTaper: High