Marathon Swimmers Federation

U.S. Marathon Swim Calendar

Now updated for 2015!

List of organized marathon swim races in the United States or nearby locations. 10K (6 miles) or longer.

2015 dates if available; otherwise 2014 dates are shown. To add an event to this list, please contact us.

Date Swim Location Distance Type
4/12/2015 Swim Around Lido Key Sarasota, FL 7 mi Circumnavigation
4/19/2015 Nike Swim Miami Miami, FL 10 km Lagoon / Multi-Loop
4/25/2015 Tampa Bay Marathon Swim Tampa, FL 24 mi P2Pbay
5/6/2015 S.C.A.R. Swim Challenge Saguaro Lake, AZ 9.5 mi Lake / P2P
5/7/2015 S.C.A.R. Swim Challenge Canyon Lake, AZ 9 mi Lake / P2P
5/8/2015 S.C.A.R. Swim Challenge Apache Lake, AZ 17 mi Lake / P2P
5/9/2015 S.C.A.R. Swim Challenge Roosevelt Lake, AZ 10 km Lake / P2P
6/6/2015 Potomac River Swim Hull Neck, VA to Pt Lookout S.P., MD 7.5 mi P2P
6/6/2015 Swim Around Key West Key West, FL 12 mi Circumnavigation
6/6/2015 Great Salt Lake Marathon Swim Salt Lake City, UT 8 mi Saline Lake / P2P
6/7/2015 8 Bridges Hudson River Swim Rip Van Winkle to Kingston Rhinecliff 18.3 mi River / P2P
6/8/2015 8 Bridges Hudson River Swim Kingston Rhinecliff to Mid-Hudson 19.8 mi River / P2P
6/9/2015 8 Bridges Hudson River Swim Mid-Hudson to Newburgh Beacon 13.2 mi River / P2P
6/10/2015 8 Bridges Hudson River Swim Newburgh Beacon to Bear Mountain 15.0 mi River / P2P
6/11/2015 8 Bridges Hudson River Swim Bear Mountain to Tappan Zee 19.8 mi River / P2P
6/12/2015 8 Bridges Hudson River Swim Tappan Zee to George Washington 15.7 mi River / P2P
6/13/2015 FKCC Swim Around Key West Key West, FL 12 mi Circumnavigation
6/13/2015 8 Bridges Hudson River Swim George Washington to Verrazano Narrows 18.6 mi River / P2P
6/13/2015 Lake Del Valle (USMS Nat.Champ) Livermore, CA 10 km Lake / Multi-Loop
6/20/2015 END-WET Grand Forks, ND to Oslo, MN 36 mi River / P2P
6/20/2015 Son of a Swim Newport, VT 6 mi Lake
6/20/2015 Morse Reservoir (USMS Nat.Champ) Noblesville, IN 15 km Lake / Multi-Loop
7/5/2015 Semana Nautica 6 mile Swim Santa Barbara, CA 6 mi Ocean / P2P
7/12/2015 Portland Bridge Swim Portland, OR 11 mi River / P2P
7/18/2015 Flathead Lake Swim Big Arm, Montana 10 km Lake / P2P
7/18/2015 Swim Ocean City Ocean City, MD 9 mi
7/25/2015 Swim Across the Sound Bridgeport, CT 25 km Ocean / P2P
7/25/2015 Kingdom Swim Newport, VT 10 mi Lake / 1 Loop
8/2/2015 Swim for Freedom Lake Geneva, WI 8 mi Lake / P2P
8/8/2015 Deer Creek 10 km Charleston, UT 10 km Lake
8/8/2015 Deer Creek 10 mile Charleston, UT 10 mi Lake
8/9/2015 Pennock Island Challenge Ketchikan, A km 8.2 mi
8/9/2015 Change Your Latitude 57˚ Sitka, A km 10 km
8/10/2015 Swim the Kingdom - Echo Lake Ludlow, VT 12 km Lake
8/11/2015 Swim the Kingdom - Lake Seymour Morgan, VT 10 km Lake
8/12/2015 Swim the Kingdom - Lake Massawippi Ayers Cliff, Quebec 9 mi Lake
8/13/2015 Swim the Kingdom - Lake Memphremagog Newport, VT 10 km Lake
8/15/2015 Boston Light Swim Boston, MA 8 mi Ocean / P2P
8/15/2015 Rose Pitonof Swim Brooklyn, NY 17 mi Bay / P2P
8/23/2015 Horsetooth Swim Fort Collins, CO 10 km Lake / P2P
8/23/2015 Swim to the Moon Hell, MI 10 km Lake
8/29/2015 Nanaimo Ocean Swim Newcastle Island, BC 11km Ocean
8/29/2015 Bridge to Bridge San Francisco, CA 10 km P2P
8/29/2015 Lake George Swim Hague, NY 10 km Lake
9/4/2015 Valley Forge Marathon Swim Bridgeport, PA river 8 miles
9/5/2015 In Search of Memphre Newport, VT 25 mi P2P
9/19/2015 NY Aquarium Triple Dip New York, NY 10 km Bay
9/19/2015 Alligator Lighthouse Swim Islamorada, FL 8 mi ocean
9/26/2015 Swim Around Charleston Charleston, SC 12 mi
9/27/2015 La Jolla Cove 10 mile La Jolla, CA 10 mi Ocean / Multi-Loop
10/3/2015 To the Bridge and Back Midlothian, VA 10 mi River
10/10/2015 Lake Travis Relay Austin, TX 10 mi Lake / P2P
10/10/2015 Swim the Suck Chattanooga, TN 10 mi River / P2P
10/10/2015 Georgeville or Bust Newport, VT 15 mi Lake / P2P
10/11/2015 Bermuda Round-the-Sound Bermuda 10 km
multiple Manhattan Island Marathon Swim New York, NY 28.5 mi Circumnavigation
5/17/2014 Pensacola Bridge Swim Pensacola, FL 25 km
5/18/2014 Pensacola Bridge Swim Pensacola, FL 10 km
8/1/2014 Great Moose Migration Arrowrock Reservoir, ID 11 mi P2P
8/10/2014 Ederle Swim New York, NY 17.5 mi Bay / P2P
9/7/2014 Brooklyn Marathon Swim Brooklyn, NY 12 mi P2P
9/11/2014 Bannerman's Island Return Cold Spring, NY 11 km River
9/14/2014 Swim for the Potomac National Harbor, MD 10 km
9/20/2014 Little Red Lighthouse Swim New York, NY 10 km River / P2P
11/8/2014 Big Tortuga Willis, TX 10 km Lake

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©2015 Marathon Swimmers Federation