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‘03

Ultramarathon Swim Event Registration

Race directors please use the form to submit your event for consideration

Please view the

WOWSA Rules and Regulations

2023 Ultramarathon Swim Series rules

Ultramarathon Swim Series

Dedicated to the preservation of the world’s most revered marathon races in a global swim series.

925.219.2107
info@ultramarathonswimseries.com
50 Water Street, San Francisco, CA 94704
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