The Tropical Triple Crown is a 3-race series on the beautiful island of Oahu: Hibiscus Half Marathon, Mango Days 5K, and Coconut Chase 8K. Save time by using this listing to register for all three races at one time!

All participants will receive a shirt for each race - - and each finisher will receive a finisher medal for each race, plus the coveted 4th medal for crossing all three finish lines! YOU MUST BE REGISTERED BY MAY 1ST IN ORDER TO GUARANTEE A SHIRT AND MEDAL FOR EACH RACE, AND GUARANTEE THE 4TH MEDAL!! (We have to order these far in advance, so no guarantees if you register late! We do order some extras, but register early to be safe!)

Event details and schedule

Hibiscus Half Marathon: May 24, 2026

Mango Days 5K: June 7, 2026

Coconut Chase 8K: June 21, 2026

To register for just one or two of these races, please visit the specific Active listing for each race.

IMPORTANT SHIRT AND MEDAL INFO!! To GUARANTEE your shirt and medal for each race, please register no later than MAY 1ST! If you register after that date, you will receive a shirt, but we can't guarantee your size. Please do not register at the last minute and then get mad that we don't have a shirt or medal for you - - we don't have ESP, and didn't know you were going to register... plus we have a NO MEAN PEOPLE policy, so please don't get angry at our volunteers when they are just there to help give you a happy race experience. Mahalo for your kokua! :)

VIRTUAL PARTICIPANTS: Please note that we can only accept uploads for virtual results for the first race - Hibiscus Half Marathon. But don't worry, we will be trusting you to complete all three races, and goodies will be shipped after the third race! :)