table rock laguna beach

Table Rock, Laguna Beach, California. Photo by Lynn Kubasek.

Latest News

LongSwims Database

The world's most comprehensive database of marathon swimming results. 35,000+ swims by 13,700+ swimmers. 1875 to present.

Documented Swims

MSF-authenticated independent solo marathon swims, documented according to the highest standards.

Rules of Marathon Swimming

Globally endorsed rules and standards for unassisted open-water marathon swimming in any body of water.

Annual Awards

Recognizing the most outstanding achievements and contributions in the sport of marathon swimming.


MSF's Global Blog Feed represents 54 marathon swimming blogs from around the world.

MSF also offers free blog hosting, powered by Wordpress. Start or transfer a blog now.

Our Sponsors

Recent Forum Discussions

Past Week
    Past Month
      Past 3 Months

        Contact Us