USMS National Championships

United States Masters Swimming (USMS) sanctions an annual series of open-water “national championships” held at various locations around the U.S. Included here are the “marathon distance” (6-9 miles) and “ultramarathon distance” (9+ miles) events.

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2023