U.S. Marathon Swim Calendar

Now updated for 2017!

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

2017 dates if available; otherwise 2016 dates are shown. To add an event to this list, please contact us.

Date Swim Location Type Distance
2017/4/22 Swim Around Lido Key Sarasota, FL ocean 7 mi
2017/4/22 Tampa Bay Marathon Swim Tampa, FL bay 24 mi
2017/4/26 S.C.A.R. Swim Challenge Saguaro Lake, AZ lake 9.5 mi
2017/4/27 S.C.A.R. Swim Challenge Canyon Lake, AZ lake 9 mi
2017/4/28 S.C.A.R. Swim Challenge Apache Lake, AZ lake 17 mi
2017/4/29 S.C.A.R. Swim Challenge Roosevelt Lake, AZ lake 10 km
2017/5/7 Nike Swim Miami Miami, FL lagoon 10 km
2017/6/2 Mercer Island Marathon Swim Seattle, WA lake 20 km
2017/6/3 Great Salt Lake Marathon Swim Salt Lake City, UT lake 10 km
2017/6/15 8 Bridges Hudson River Swim Rip Van Winkle to Kingston Rhinecliff river 18.3 mi
2017/6/16 8 Bridges Hudson River Swim Kingston Rhinecliff to Mid-Hudson river 19.8 mi
2017/6/17 END-WET Grand Forks, ND to Oslo, MN river 36 mi
2017/6/17 8 Bridges Hudson River Swim Mid-Hudson to Newburgh Beacon river 13.2 mi
2017/6/18 8 Bridges Hudson River Swim Newburgh Beacon to Bear Mountain river 15.0 mi
2017/6/19 8 Bridges Hudson River Swim Bear Mountain to Tappan Zee river 19.8 mi
2017/6/21 8 Bridges Hudson River Swim Tappan Zee to George Washington river 15.7 mi
2017/6/22 8 Bridges Hudson River Swim George Washington to Verrazano Narrows river 18.6 mi
2017/6/24 Swim Around Key West Key West, FL ocean 12 mi
2017/6/24 20 Bridges Manhattan Swim New York, NY river 28.5 mi
2017/7/1 Son of a Swim Lake Memphremagog, VT lake 6 mi
2017/7/9 Portland Bridge Swim Portland, OR river 11 mi
2017/7/15 Georgeville or Bust Lake Memphremagog, VT lake 15 mi
2017/7/15 Swim Ocean City Ocean City, MD ocean 9 mi
2017/7/15 Bear Lake Monster Swim   lake 10 km
2017/7/22 20 Bridges Manhattan Swim New York, NY river 28.5 mi
2017/7/23 20 Bridges Manhattan Swim New York, NY river 28.5 mi
2017/7/29 Kingdom Swim Lake Memphremagog, VT lake 10 mi
2017/8/5 Boston Light Swim Boston, MA ocean 8 mi
2017/8/5 Bridge to Bridge San Francisco, CA bay 10 km
2017/8/5 Swim Across the Sound Bridgeport, CT ocean 25 km
2017/8/5 Great Moose Migration Arrowrock Reservoir, ID lake 11 mi
2017/8/12 Deer Creek 10 km Charleston, UT lake 10 km
2017/8/12 Deer Creek 10 mile Charleston, UT lake 10 mi
2017/8/12 Bay Challenge Vancouver, BC, Canada ocean 9 km
2017/8/13 Change Your Latitude 57˚ Sitka, AK   10 km
2017/8/14 Echo Lake Swim Echo Lake, VT lake 12 km
2017/8/15 Lake Seymour Swim Seymour Lake, VT lake 10 km
2017/8/16 Lake Massawippi Swim Lake Massawippi, QC lake 9 mi
2017/8/17 Lake Memphremagog Swim Lake Memphremagog, VT lake 10 km
2017/8/19 Rose Pitonof Swim Brooklyn, NY bay 17 mi
2017/8/19 20 Bridges Manhattan Swim New York, NY river 28.5 mi
2017/8/20 Swim to the Moon Hell, MI lake 10 km
2017/8/20 20 Bridges Manhattan Swim New York, NY river 28.5 mi
2017/8/26 Nanaimo Ocean Swim Newcastle Island, BC ocean 11km
2017/8/26 Apostle Island Relay Bayfield, WI lake 20 mi
2017/8/26 Lake George Swim Hague, NY lake 10 km
2017/9/1 Bender Memorial Marathon Swim Bridgeport, PA river 8 mi
2017/9/8 20 Bridges Manhattan Swim New York, NY river 28.5 mi
2017/9/9 Lake Hopatcong Lake Hopatcong, NJ lake 9.1 mi
2017/9/10 Horsetooth Swim Fort Collins, CO lake 10 km
2017/9/11 In Search of Memphre Lake Memphremagog, VT lake 25 mi
2017/9/23 Swim for the Potomac National Harbor, MD   10 km
2017/9/23 Alligator Lighthouse Swim Islamorada, FL ocean 9 mi
2017/10/1 Swim Around Charleston Charleston, SC   12 mi
2017/10/14 Swim the Suck Chattanooga, TN river 10 mi
2017/10/14 Lake Travis Relay Austin, TX lake 10 mi
2017/10/15 To the Bridge and Back Midlothian, VA river 10 mi
2017/10/28 Swim Fort de Soto St Petersburg FL ocean 10 km+
2016/6/11 Del Valle Open Water Festival Livermore, CA lake 10 km
2016/6/18 FKCC Swim Around Key West Key West, FL ocean 12 mi
2016/7/10 Semana Nautica 6 mile Swim Santa Barbara, CA ocean 6 mi
2016/7/16 Flathead Lake Swim Big Arm, Montana lake 10 km
2016/8/7 Swim for Freedom Lake Geneva, WI lake 8 mi
2016/8/14 Pennock Island Challenge Ketchikan, AK   8.2 mi
2016/9/25 La Jolla Cove 10 mile La Jolla, CA ocean 10 mi
2016/10/9 Bermuda Round-the-Sound Bermuda   10 km
2016 TBD Brigantine Beach Swim Brigantine, NJ ocean 10 km

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