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Training Plans · 2 min read

Threshold swim workouts: check the full session time

Preview three workouts from DuoSwim’s Threshold Breaker plan, compare their estimated times and distances, and check what fits your pool slot.

Written by DuoSwim Team • Dec 6, 2025 • Updated

Quick answer

DuoSwim’s Threshold Breaker preview lists 24 workouts with estimated times from 53 to 70 minutes. A threshold main set is only part of a swim, so compare the full workout’s distance and estimated duration with the pool time you have available.

Preview three Threshold Breaker workouts

Threshold Breaker is a 24-workout plan described for intermediate to advanced swimmers. Its plan preview lists the name, total distance and estimated duration of each workout. Here are the first three in the published order.

Put this guidance into practice with structured swim training in the DuoSwim App.

  • Threshold Foundations — 3,000 m, estimated 53 minutes.
  • Descend & Hold — 3,600 m, estimated 63 minutes.
  • Kick, Pull & Swim — 3,200 m, estimated 56 minutes.

Check the full session time

Across the plan, the listed estimates range from 53 to 70 minutes. The plan summary gives an average of about 63 minutes and 3,600 m per workout. These are estimates for individual workouts, not a time target for a single threshold set.

A main set sits within a larger workout. Read the complete sequence and check its swimming, rest and transitions when planning your time. The preview’s duration estimate is not a guaranteed finish time, and it does not show how each part contributes to that total.

If you have a 45-minute pool slot, none of these listed full-workout estimates falls within it. Our 45-minute workout guide explains how the main set fits alongside the other blocks and how to account for rest.

Read the workout details before you swim

The name, distance and estimated time help you compare workouts. The set details explain the individual repeats, stroke, target time and rest. Read those together rather than treating the total distance as one continuous swim.

Our workout-reading guide walks through a real DuoSwim screen, including how to distinguish a target time from rest. It also has a printable notation reference.

Explore the plan in DuoSwim

Open the Threshold Breaker preview to compare the workouts, then choose the App Store for iPhone or Google Play for Android below. DuoSwim is free to download. Guided training uses an App subscription. Check the current price and any trial terms before subscribing.

Continue improving

Continue with the right next read

Primary guide: Swimming Training Plans: How to Choose YoursSecondary guide: Swim Pacing & Race Strategy GuideRelated article: How smartwatch swim workouts improve consistencyRelated article: 45-minute swim workout: structure and timing

Practical takeaway

Check the whole workout before choosing it for a pool slot. Threshold Breaker’s listed estimates start at 53 minutes. The preview shows the distance and estimated time for every workout.

DuoSwim Team

Find a threshold workout for your next pool slot

Threshold Breaker lists the distance and estimated time for each swim. Preview the workouts to see what fits your schedule, or browse the plan in the DuoSwim app.

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Free to download. Guided training requires an app subscription.

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Preview the Threshold Breaker workouts

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