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5 pacing mistakes that stop swimmers hitting PBs

Most plateaus are pacing problems. Learn the common errors and simple fixes you can apply this week.

6 min read

By DuoSwim Team 12 Mar 2026

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Indoor pool lanes used for swim pacing practice

Quick answer

The most common swim pacing mistakes are going out too hard, letting stroke count drift, and losing rest consistency between reps. To hit PBs, set target splits before you start, hold technical cues through the middle of sets, and finish with stronger final reps.

Most PB attempts fail before halfway

Pacing mistakes are usually subtle, not dramatic. Going just a little too hard in the first block can leave you chasing the rest of the workout.

The fix is not to be conservative. It is to be deliberate and build through the set with a clear pace plan.

Five mistakes to avoid

These are the patterns we see most often in swimmer data and workout reviews.

  • Starting reps above target effort instead of at target effort
  • Letting stroke count drift as soon as fatigue appears
  • Taking inconsistent rest between hard reps
  • Skipping easy recovery work that supports quality speed
  • Treating every workout like a race effort

A simple pacing framework

Pick one priority pace for the day and anchor your workout around it. Keep early reps controlled, hold your technical cues, and finish stronger than you started.

If your final block is cleaner and faster than your first block, your pacing was right.

Continue improving

Continue with the right next read

Coach takeaway

The best gains rarely come from one huge workout. They come from repeatable quality across the week. Keep your intent clear, keep your pacing honest, and let consistency do the heavy lifting.

DuoSwim Team

Frequently asked questions

Is DuoSwim suitable for beginners?

Yes. DuoSwim includes beginner-friendly plans with clear progression and technique-first workouts.

Can I follow workouts on Apple Watch or Garmin?

Yes. DuoSwim supports watch-ready workouts so you can follow workouts on compatible devices.

How many swims per week do I need to improve?

Most swimmers improve with 2 to 5 workouts per week, depending on goal, experience, and recovery.

Can I switch plans if my goal changes?

Yes. You can switch plan focus as your goals evolve, including speed, endurance, triathlon, and technique.

🏊

Caroline

Started the Marathon Plan

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