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SwimDistance

The 100 × 100 Challenge

100 × 100 on a fixed interval — 10,000 total

Time
≈9 min
Difficulty
EliteDifficulty 5 of 5 — Elite

What we typed

25 m pool. Warm up 300 easy. 50 × (100 freestyle moderate, on 1:30). 50 × (100 freestyle moderate, on 1:30). Note: choose your own send-off; fuel every 20.

Fit File Forge built the steps below from these words — the same steps your watch gets.

Describe your own

The session

5 steps

25 m pool

Warm upFreestyle

300 mEasyZ2
50×100 m

RepFreestyle

fuel every 20

100 mModerateZ3

Send-off

on 1:30Z1
50×100 m

RepFreestyle

fuel every 20

100 mModerateZ3

Send-off

on 1:30Z1

Targets that fit you. Swims use Garmin's effort levels (easy, moderate, hard, all out…). Send-offs listed as clock times are the original, elite intervals — scale them to leave yourself the rest the set intends.

Scaled version

50 × 100 (5,000), or 100 × 50.

Build the scaled version in Forge

About this session

What it trains

Endurance, pacing and mental toughness. A once-a-year challenge, often done as a team.

Who it's for

Fit swimmers who choose an honest send-off. Pick one you could hold for 30+ in normal training.

Related workouts

NOT HERE? DESCRIBE IT.

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Garmin and Garmin Connect are trademarks of Garmin Ltd. or its subsidiaries. Zwift is a trademark of Zwift, Inc.; Fit File Forge isn't affiliated with Zwift. Athletes and coaches named here don't endorse Fit File Forge.