How to prepare for a 70.3 triathlon (Ironman Los Cabos special)

Taking the leap to a 70.3 isn't just about increasing the distance. It's about changing the way you compete.

Events like Ironman 70.3 Los Cabos make it clear: being fit isn't enough; you need strategy.

More hours, more wear and tear, and more variables mean this distance is played completely differently from a sprint or an Olympic.

1. It's not twice the distance. It's a different type of effort.

Many athletes believe that a 70.3 is just "doing the same thing, but for longer."

It's not.

It's a sustained effort where intensity decreases, but the overall demand increases.

Key: learn to compete by zones, not by impulse.

2. Pacing defines everything.

In middle distance, starting strong comes at a high price.

Especially on courses like Los Cabos, where the heat and wind multiply any initial error.

• Controlled swim
• Consistent (not aggressive) bike
• Progressive run

Key: if you feel too good at the beginning... you're probably going too fast.

3. Nutrition is no longer optional.

In short distances, you can "survive" with nutritional mistakes.

In a 70.3, you cannot.

You need:

• A clear hydration strategy
• Constant energy intake
• Well-calculated electrolytes

Key: do not improvise on race day.

4. The bike defines your race.

In Los Cabos, the cycling segment is decisive.

The constant wind breaks the rhythm and demands efficiency more than power.

If you overexert yourself on the bike, you will pay for it on the run.

Key: conserve energy for the run, don't "gain time" on the bike.

5. The environment is not neutral.

Los Cabos combines dry heat, sun exposure, and wind.

It's not a race for improvisation.

It's a race for management.

As we saw in the different types of triathlon environments, each venue completely changes the strategy.

This is what Ironman 70.3 Los Cabos is like.

If you want to see what the conditions of this race truly feel like, this video shows the environment, the wind, and the type of course you'll face:

6. The mind also competes.

A 70.3 is not broken by the body alone. It is broken by the mind.

Moments of fatigue, accumulated heat, and long segments require constant concentration.

Key: divide the competition into manageable parts.

Preparing for a 70.3 is learning to endure.

The one who goes fastest doesn't win. The one who keeps going wins.

This distance demands patience, discipline, and clarity.

And when everything is executed well, the result feels different.

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Designed to go further

At KUMI, we design our trisuits with distances like this in mind: prolonged comfort, aerodynamics, and materials that perform in heat and wind.

Explore the collection designed for 70.3 →

See you at the starting line.

— KUMI Team