Haley Chasin

Haley Chasin in the middle of the Molokai Channel on her record-setting 11 hour 59 minute crossing between Molokai and Oahu

Haley Chasin before entering the Molokai Channel at 2:08 am on 10 June 2025

Haley Chasin is a 27-year-old American pool and open water swimmer from Honolulu, Hawaii.

Open Water Swimming

On 10 June 2025, she set the women's record for the fastest crossing of the 45 km Molokai Channel, swimming from South Papohako Beach on Molokai to Alan Davis Beach on Oahu in 11 hours 59 minutes, the second fastest crossing in history at the age of 27, escorted by pilot Michael Twigg-Smith. She broke the existing record of Penny Palfrey set in November 2011 in 12 hours 7 minutes.
She competed in the SCAR Swim Challenge, a 4-day 4-lake stage swim in Arizona on 23-26 April 2025 at the age of 27, finishing fourth overall in a cumulative time of 16 hours 18 minutes 27.9 seconds.
She won the 7 km Possibly Annual Hawaii Christmas Looong Distance Invitation Rough-H2O Swim on 28 October 2017 from San Souci Beach to Ala Wai Channel to San Souci Beach on Oahu at the age of 20.