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Why Do I Gas Out in a Fight When I'm Fit?

Why Do I Gas Out in a Fight When I'm Fit?

Update: 2025-07-181
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Ever felt supremely fit but wondered, “Why do I gas out in a fight?”

I recently had a coaching call with a fighter who experienced exactly this. Despite being in the best shape of his life, he found himself exhausted after just three rounds.

It wasn’t his fitness level – it was his fight strategy and work-rest ratios.

Many fighters make three common mistakes:

  • Work too long without adequate rest
  • Rest too long and lose momentum
  • Or (most commonly) have no strategic approach to their output at all


KEY MOMENTS

Follow along using these quick timestamps:

00:00 How Many Rounds? It Matters!

00:24 Muay Thai Time Motion Analysis

01:10 What Happened In This Fight?

01:58 You Can't Beat Human Biology!

02:14 Work:Rest Outliers

Further notes and resources at https://heatrick.com/2025/07/18/why-do-i-gas-out-in-a-fight-when-im-fit/

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Why Do I Gas Out in a Fight When I'm Fit?

Why Do I Gas Out in a Fight When I'm Fit?

Don Heatrick