The course and its reported time
Dietz completed the continuous three-island route in 25 hours and 13 minutes, the Daily News of Open Water Swimming reported. Hawaii News Now also reported that the swim lasted more than 25 hours.
The three legs ran from Club Lānaʻi to Kaʻanapali Beach on Maui, onward to Kamalo on Molokaʻi, then back to Paopao Point on Lānaʻi. The Daily News of Open Water Swimming reported distances of 15.33, 15.75 and 26.50 kilometers for those legs, respectively.
The Maui Nui Swim website defines the challenge as crossings of the three channels between Maui, Molokaʻi and Lānaʻi within a three-day period. Dietz completed all three legs in one continuous swim, finishing in just over a day.
A small group of known finishers
Hawaii News Now reported that Dietz is one of three people known to have completed the challenge. The outlet also reported that she has swum every Hawaiian island channel except the Kauaʻi Channel.
Becca Mann completed the first official Triple Maui Nui Swim in 2019, according to SwimSwam. In February 2026, Ted Lomicka became the first man and the second person to finish the route, completing it in 23 hours and 47 minutes, the same outlet reported.
Dietz swam with Captain Andy Joca and crew members Cameron Foucht, Meredith Graf, Zane Wright, Michele Moore and Kate Macias, according to the Daily News of Open Water Swimming. Hawaii News Now reported that Dietz credited her crew with helping her through the swim and keeping her safe.
Hawaiʻi’s broader water-safety picture
The Hawaiʻi Department of Health says the state’s resident drowning rate is the second highest in the nation, and drowning is the leading cause of injury-related deaths for tourists. These statewide statistics provide broader water-safety context; they do not describe Dietz’s swim or indicate that it involved an incident.
