It's best to master a particular stroke (like front crawl) that you can sustain for a long period of time, as you'll be able to comfortably up the speed and length of your sessions.

As a competitive swimmer for 10 years, front crawl is the most efficient stroke when done correctly due to having the least active drag. However, if the technique isn’t correct, it can be one of ...

Many newcomers to triathlon are uncomfortable with the front crawl, but if you master the stroke you can cut precious seconds from your swim time There were 43 world records set at this year's ...