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What Is the Fastest Swimming Stroke? 5 Strokes Ranked by Speed

The short answer: front crawl, swum in freestyle races, is the fastest swimming stroke. Here is how the other strokes rank, why the order looks the way it does, and why the fastest stroke for you might be different.

Swimming strokes ranked from fastest to slowest using men's 100m long course world records: freestyle 46.40 seconds, butterfly 49.45, backstroke 51.60, breaststroke 56.88, then sidestroke
Men's 100m long course world records by stroke, as listed in 2026

The ranking at a glance

World records give a fair comparison, because they show each stroke at its absolute best. These are the men's 100 metre world records in a 50 metre pool, as listed in 2026:

RankStrokeMen's 100m world recordHolder
1Freestyle (front crawl)46.40 sPan Zhanle, 2024
2Butterfly49.45 sCaeleb Dressel, 2021
3Backstroke51.60 sThomas Ceccon, 2022
4Breaststroke56.88 sAdam Peaty, 2019
5SidestrokeNot racedRecreational and lifesaving stroke

The women's records follow the same order. Records can change, so check World Aquatics for the latest times.

Why each stroke ranks where it does

1. Front crawl: continuous power, low drag

In front crawl one arm is always pulling while the other recovers over the water, so there is almost no gap in propulsion. The body is long and flat, and rolling from side to side lets the swimmer use the large back muscles while keeping the frontal area small. The flutter kick keeps the legs high. That combination is why freestyle swimmers, who may swim any stroke, nearly always choose front crawl.

2. Butterfly: powerful but uneven

Butterfly produces a huge push when both arms pull together with a strong dolphin kick, and at peak moments it can be as fast as front crawl. But the speed rises and falls on every stroke, and lifting both arms over the water costs a lot of energy. Over 100 metres it ends up about three seconds slower than freestyle at world record level.

3. Backstroke: front crawl on your back

Backstroke uses the same alternating arms and flutter kick as front crawl, so it is also continuous. It is slower mainly because the shoulders cannot pull as powerfully from behind the body as they can in front, and swimmers cannot see the wall coming.

4. Breaststroke: the recovery creates drag

In breaststroke both the arms and the legs return forward under the water. Every time the knees come up and the hands push forward, the swimmer slows down, so the speed surges and drops on every stroke. That is why breaststroke is the slowest of the four competitive strokes, about ten seconds behind freestyle over 100 metres at world record level.

5. Sidestroke: built for endurance, not speed

Sidestroke is not raced, but it is clearly slower than the four competitive strokes. Its long glide and scissor kick make it restful and easy to keep going, which is why it is valued for lifesaving and long relaxed swims rather than speed.

What about underwater kicking?

Elite swimmers can travel very fast underwater with a dolphin kick, because there are no waves at the surface to push against. That is why World Aquatics limits it: in freestyle, backstroke and butterfly, swimmers must surface within 15 metres of the start and each turn. Breaststroke has its own rule allowing one arm pull and one dolphin kick underwater before the first breaststroke kick.

The fastest stroke for you

For a beginner, the fastest stroke is usually the one you can swim smoothly without stopping. A relaxed breaststroke will beat a front crawl that leaves you gasping after ten metres. As your breathing and technique improve, front crawl will become your fastest stroke too.

A coach can quickly spot what is slowing you down. See our adult swimming course, kids swimming course or private swimming course.

More from the Swim2u swimming network: LearnSwim.sg (more learn-to-swim guides) and Swim2u Swim School (swimming lessons across Singapore).

More in swimming technique

See all swimming guides

Sources

  • Olympics.com, Swimming: all long course world records at a glance. Men's 100m world records: freestyle 46.40 (Pan Zhanle, 2024), butterfly 49.45 (Caeleb Dressel, 2021), backstroke 51.60 (Thomas Ceccon, 2022), breaststroke 56.88 (Adam Peaty, 2019).
  • World Aquatics, Current world records, individual long course (March 2026). Official list of long course world records.
  • World Aquatics, Swimming reference card. Stroke rules, including the 15 metre underwater limit after starts and turns and the breaststroke pullout rule.

Want to swim faster?

Tell us the swimmer's age, which strokes they swim now and what they want to improve. We will suggest a suitable course, format and pool. Lessons run at public swimming complexes, private venues and condominium pools across Singapore.

Frequently asked questions

Is freestyle the same as front crawl?

Not exactly. Freestyle is a race category in which swimmers may use any stroke. Almost everyone chooses front crawl because it is the fastest, so the two names are often used interchangeably.

Is butterfly faster than freestyle?

No. Butterfly can match front crawl for short bursts, but over a full race freestyle is faster. At world record level the men's 100m freestyle is about three seconds faster than the 100m butterfly.

What is the slowest swimming stroke?

Of the four competitive strokes, breaststroke is the slowest. Recreational strokes such as sidestroke and elementary backstroke are slower still.
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