Big Island International Marathon 2025

• Scenic tropical course with ocean views, rainforests, waterfalls, and historic bridges.
• Boston Marathon qualifier, ideal for competitive runners.
• Races start and finish at Bay Front Hilo, near Hilo Hawaiian Hotel.
• Aid stations every 2 miles; restrooms every 4 miles.
• Marathon and half marathon cut-off time is 1:00 p.m.

The Big Island International Marathon offers a unique running experience set against the lush backdrop of Hilo, Hawaii. The course begins and ends at the Hilo Hawaiian Hotel, featuring rolling hills for the first 15 miles before transitioning into flatter terrains, which provide more favorable running conditions. This marathon is particularly appealing to those aiming to qualify for the Boston Marathon, as it's a recognized qualifier event. The race benefits from the relatively cooler climate of Hilo, offering mean temperatures around 72°F (22°C), which is ideal for endurance events.

Apart from the full marathon, the event includes a variety of other races, such as a half marathon, 10K, 5K, and a 2-mile walk, accommodating runners of all preferences and skill levels. The backdrop of Hawaii's natural beauty and the local hospitality make this marathon a must-try for both avid marathoners and those looking for a picturesque race experience. With its course elevation peaking at 236 feet (71 meters), runners are treated to views of the stunning landscape as they race through one of the cooler parts of the tropical island, making the physical challenge rewarding and visually inspiring. The maximum participation of finishers qualifying for the Boston Marathon, combined with the vibrant atmosphere, makes this a standout event on the marathon calendar.

Expect temperatures around 64-79°F (18-26°C) with moderate rain during the Big Island International Marathon in Hilo, Hawaii, in mid-March. The climate is warm and tropical, with a higher likelihood of rain in the morning. Runners should be ready for potential rain showers throughout the day.

Experience the Big Island International Marathon, a captivating and challenging journey through Hawaii's lush landscapes. The course begins with 15 miles of rolling hills, delivering an elevation gain of approximately 800 feet, before leveling out for a more relaxed finish. As you run, immerse yourself in breathtaking views of the Pacific Ocean, cascading waterfalls, and vibrant tropical forests. Historic roads guide you along the picturesque coastlines of Onomea Bay and Hilo Bay, surrounded by rainforests, lava beaches, and sugarcane fields.

The course is not without its challenges. The initial 16 miles feature steep hills, earning the marathon a reputation as one of the most demanding due to its elevation changes. Weather conditions can vary, with potential morning drizzle and warm, sunny stretches later on. Running on open roads with narrow shoulders requires vigilance due to passing traffic.

This marathon is a certified Boston Qualifier, appealing to those with aspirations for the prestigious race, and also offers a half marathon and a 5K for runners of all levels. The Big Island International Marathon promises an unforgettable experience, combining natural beauty with a test of endurance.

Visiting Hilo for the Big Island International Marathon is an opportunity to immerse yourself in the natural beauty and cultural richness of Hawaii. Beyond the race, Hilo offers a vibrant blend of attractions and experiences that will enhance your stay.

Explore downtown Hilo, where historic wooden storefronts house art galleries, local shops, and museums. Just a short distance away, the serene Liliʻuokalani Gardens present a tranquil escape with their Japanese-inspired design. For nature enthusiasts, Wailuku River State Park showcases the stunning Waiānuenue (Rainbow Falls) and Peʻepeʻe Falls, while ʻAkaka Falls State Park offers breathtaking views of the towering ʻAkaka and Kahuna Falls. Don’t miss the Panaʻewa Rainforest Zoo, the only rainforest zoo in the U.S., featuring exotic plants and animals, including Bengal tigers.

To dive deeper into Hilo’s cultural tapestry, visit the bustling Hilo Farmers Market for fresh produce and local crafts. The East Hawaiʻi Cultural Center and Lyman Museum provide insights into the island’s art scene and historical heritage. If you're visiting during the Merrie Monarch Festival, enjoy a celebration of traditional Hawaiian hula and crafts. Savor local cuisine at downtown eateries, and explore art galleries like Extreme Exposure Fine Art Gallery for unique island perspectives. A visit to Hilo promises both adventure and a deep connection to Hawaiian culture.