How to Train for a Sprint Triathlon

A sprint triathlon (usually a 750 m swim, 20 km bike and 5 km run) is the perfect first triathlon and a fast, fun race for experienced athletes. Twelve weeks of balanced training across three sports is enough for most people.

Balance the three sports

A typical week includes two swims, two rides and two runs. Most sessions should be easy, with one quality session per sport to build speed.

Swim technique first

For most new triathletes the swim is the biggest limiter. Technique drills and steady continuous swimming pay off more than hard sets. If your race is in open water, practise in a wetsuit before race day.

Brick sessions

Running straight off the bike feels strange at first. Short brick runs after rides, from 10 to 15 minutes, teach your legs the transition.

Transitions

Practise setting up and moving through transition. Time saved in T1 and T2 can be worth more than weeks of fitness gains.

Race day

Start the swim calmly, settle into a steady bike effort, and use the run to empty the tank.

Ready to start?

The Endurance Lab sprint triathlon training plans come in four levels (Start, Develop, Perform and Podium). Choose heart rate or power on the bike, and heart rate, pace or power on the run. Use Find your plan to filter by level, the hours you have each week and the weeks until your race. New to training by effort? Read our RPE guide and training zones guide first.

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Next step

Measure it in the lab

Book a VO2max or lactate test in Dún Laoghaire and get your results explained in plain language.

Next step

Train with a plan built on your data

Personalised TrainingPeaks coaching — remote, or with the EL Squad in Dublin.

Next step

Know your numbers

Measure your body composition and resting metabolic rate to plan fuelling with real data.

Next step

Book a recovery appointment

Sports massage, neuromuscular therapy and Reiki in Dún Laoghaire — book and pay online.

Next step

See where you stand

A healthspan assessment turns fitness and healthy-ageing markers into practical next steps.

Next step

Race with a plan

Set accurate zones in the lab and prepare with a coach who plans your pacing.

Next step

Train with the EL Squad

Group S&C, a weekly track session and Sunday rides with athletes on the same system.

Next step

Put the science into practice

Test in the lab or train with a coach who uses your data.

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