Race DayMar 5, 202612 min read

Your First Ironman: A Complete Nutrition Timeline

From the week before to the finish line — a practical timeline for hydration, carbs, and electrolytes on your first full-distance triathlon.

Ironman rewards athletes who can execute a boring plan. The goal is predictable intake: steady carbs, proactive fluids, and electrolytes matched to conditions.

Start from your tested training nutrition. Race week is not the moment to reinvent products — it is the moment to scale what already works.

"If it is new on race week, it does not exist."

— Prep Coaching Team

A simple race-week checklist

  • T-7 to T-3: normal training fueling; prioritize sleep and carb availability.
  • T-2 to T-1: increase carbs, reduce fiber, keep hydration steady.
  • Race morning: early breakfast, then small top-ups aligned with your start time.
  • On course: set a repeating fuel rhythm (time or distance) and adjust for heat.

Prep turns your product preferences into a timeline you can follow under stress — so your first Ironman feels planned, not improvised.

MT

Mike Torres

Race Strategy Lead

Stop guessing. Start fueling.

Turn your next race plan into an execution-ready nutrition strategy with Prep.