Record Holder and First Individual to Swim Lake Powell, Lake Champlain, English Channel Four Way

Meet Sarah Thomas

Endurance athlete. Committed coach.

Engaging speaker.

Sarah Thomas, 39, is an ultra-marathon swimmer who holds the current world record for the longest continuous (unassisted, non-wetsuit) swim done in current-neutral conditions. That record-breaking swim covered 104.6 miles over 67 hours and was completed in Lake Champlain (USA) in August of 2017. Shortly after completing this swim, Sarah was diagnosed with an aggressive form of breast cancer. She was just 35 years old. While undergoing aggressive cancer treatment, including chemotherapy, surgery, and radiation therapy, Sarah never gave up on her dream of doing a swim that most people thought was impossible. One year after completing her cancer treatments, Sarah did just that- becoming the first person to complete a four-way crossing of the English Channel in 54 hours and 10 minutes.

Sarah lives near Denver, Colorado, with her husband Ryan, their two beagles and their rescue mutt. When she is not training or coaching open water swimmers, Sarah works as a full-time recruiter. She also offers keynote presentations for special events, where she shares life lessons that help her complete marathon swims and that helped her beat cancer.

Other notable swims:

  • Catalina Channel- 20 miles, 2010
  • Manhattan Island Marathon Swim- 28.5 miles, 2011
  • English Channel (single crossing)- 21 miles, 2012
  • Double Lake Tahoe- 42 miles, 2013*
  • Double Lake Memphremagog- 50 miles, 2013*
  • Loch Ness- 22 miles, 2015**
  • Lake Powell- 80 miles, 2016*
  • Lake Champlain- 104.6 miles, 2017*
  • English Channel Four Way- 84 miles, 2019*
  • Molokai Channel- 24 miles, 2021

Click HERE For a full list of swim history.

*First person to complete this swim
**Second American to complete this swim