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Master Your Marathon Hydration Plan for Race Day

Cold, Covid & Flu· 18 September 2026
Master Your Marathon Hydration Plan for Race Day

Why Hydration Matters

Running a marathon is no small feat, and while training gets the most attention, hydration is often the unsung hero. Did you know that even a 2% drop in body weight from fluid loss can impair your performance? It’s vital to ensure you’re *spot on* with your hydration strategy before race day arrives.

When to Start Hydrating

Forget about chugging water the day before—hydration is a marathon, not a sprint. Start ramping up your fluid intake at least a week before the big day. Make it a habit to sip water regularly throughout the day and consider incorporating electrolyte drinks into your routine.

What to Drink: The Dieticians Weigh In

So, what exactly should you be drinking? We caught up with nutritionists to get the lowdown:

  • Water: The gold standard. Aim for 2-3 litres daily during training, adjusting based on your exercise intensity.
  • Electrolyte Drinks: These are essential for long runs. Look for options with sodium and potassium to replenish what you lose through sweat.
  • Sports Drinks: During long runs, a diluted sports drink can provide the necessary carbs and electrolytes to keep you fuelled.
  • Coconut Water: A natural alternative rich in potassium—perfect for recovery.

Timing Your Drinks

It’s all about balance. Here’s a simple guideline to keep in mind:

  • Pre-Race: Drink 500ml of water or an electrolyte drink two hours before start time.
  • During the Race: Aim for 150-250ml of fluid every 20 minutes. Use aid stations wisely!
  • Post-Race: Rehydrate with a mix of water and a recovery drink to restore lost electrolytes.

Food Matters Too

Hydration isn’t just about fluids; what you eat plays a vital role. Incorporate hydrating foods like cucumbers, oranges, and soups into your diet. They’re not just refreshing but also contribute to your overall hydration levels.

Personalise Your Plan

Every runner is different, so it’s essential to tailor your hydration to your body’s needs. Keep a hydration log during your training runs to see how much you sweat and adjust your strategy accordingly.

Final Thoughts

With all this in mind, it’s time to take hydration seriously in your marathon training. By starting early and knowing what to drink, you’ll set yourself up for a successful race day. So, how will you hydrate for your next marathon? Share your plans with us!

Category: Cold, Covid & Flu