Brick Workouts for Triathlon

Everything you need to know about brick workouts — what they are, why they matter, and sample sessions for every level from sprint to full Ironman.

14 min read 5 sectionsUpdated August 19, 2026

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A brick is two disciplines performed back-to-back, usually cycling followed by running. Its main value is rehearsing the transition, pacing, equipment and sensations; it does not need to be long or hard to be useful.

Key takeaways

  • 1A brick is two disciplines performed back-to-back, usually cycling followed by running
  • 2Choose the smallest repeatable dose that addresses the specific limiter.
  • 3Progress one variable at a time and keep demanding sessions separated by recovery.
  • 4Verify current event, product and rule details before acting.

Quick answer

A brick is two disciplines performed back-to-back, usually cycling followed by running. Its main value is rehearsing the transition, pacing, equipment and sensations; it does not need to be long or hard to be useful.

A practical decision process

  1. Define the decision: Start from current ability, recent training, health context and available recovery.
  2. Check the controlling information: Choose the smallest repeatable dose that addresses the specific limiter.
  3. Rehearse the plan: Progress one variable at a time and keep demanding sessions separated by recovery.
  4. Review and adjust: Use symptoms, perceived effort and performance together; stop for concerning signs rather than forcing the schedule.

Worked example

A reader searching for brick workouts should write down the real constraint first, use the process above and choose a reversible next step. For global readers, record distances and quantities in metric units first and add imperial equivalents where they help. Label the governing body, event edition, product model and date whenever those details control the answer.

Evidence, limits and safety

Examples are planning aids, not guarantees. Course conditions, equipment, fitness, rules and individual response can change the right decision.

The evidence and rules review used WHO guidelines on physical activity and sedentary behaviour and Physical Activity Guidelines for Americans, second edition. Check the controlling source again when the event, product, health context or guidance changes.

Next step

Choose a conservative next session or plan. Keep the decision specific, record what you tried and revisit the plan when conditions or evidence change.

Sources

Sources are listed so readers can verify consequential claims and dated details.

  1. WHO guidelines on physical activity and sedentary behaviourWorld Health Organization (accessed August 19, 2026)
  2. Physical Activity Guidelines for Americans, second editionU.S. Department of Health and Human Services (accessed August 19, 2026)

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