RUN AGAINST THE TIDES

A remarkable 50+ mile ultra run that challenges runners to conquer the rugged terrain of coastal Cape Cod.

REGISTER NOW

The Run

The Run Against The Tides, an extraordinary 50-mile ultra run curated by Alex Guglielmetti, challenges seasoned runners to a solo, self-supported, and unsanctioned journey along Cape Cod's stunning elbow-shaped coastline. Starting in Provincetown and ending in Brewster, this course showcases the pristine landscapes that define Cape Cod.

Runners must navigate dynamic tides influenced by the moon's gravitational pull, which temporarily make certain sections of the route inaccessible. This demands impeccable time management skills and unwavering endurance. The unique challenge of syncing with the tidal oscillations sets this ultra run apart, making it a true test of strategy and resilience.

Designed for accomplished marathoners, trail runners, and triathletes primarily from the East Coast, the Run Against The Tides promises a significant athletic feat and an unparalleled adventure. This race offers seasoned runners the opportunity to conquer Cape Cod’s toughest ultra run, covering over 50 miles of raw, stunning coastline.

Join us every May and September for an adventure like no other.

FAQs

  • There are many inherent challenges to this run, (1) the course is completely run on the sand, which can slow down even the fastest runners. (2) Cape Cod is renowned for its extreme tides, which cause parts of the course to disappear at times, requiring careful timing. (3) The temperature and weather fluctuate rapidly on the cape (4) This is a solo and self unsupported race, requiring a lot of preparation.

    This race is only recommended for experienced marathon and ultra runners who have trained for this run, and are familiar with the terrain.

  • The Sea Meadow Inn, owned by Alex (the runner) and his wife, is the finish line of the race. If you are interested in staying at the Inn, please contact us through the inquiry form below.

  • This route is intended to be a solo, unsupported run. Though it could be potentially run with a group, since this route traverses state and national parks, you will have to research the laws and limitations of running in a group. We want to ensure that we are not only exploring the beauty of the Cape but also protecting it and practicing leave no trace principles.

  • Every runner requires different gear, but the most important item for this race is good shoes that work well for running in the sand. Other than that, whatever food you require for energy and water. I recommend 3 (12 oz) bottles, there are many opportunities to refill your bottle along the way, since you are never far from roads on the route. Bathrooms are available around much of the course, though, if you choose to run in the off-season those facilities may be closed.

  • According to FKT.com, “Self-Supported means you may have as much support as you can manage or find along the way, but not from any thing or person just for you; any support you employ must be equally available to anyone else. This can range from caching supplies in advance, purchasing supplies along the way, staying at motels, to finding or begging for food or water.”

  • You can run this at any time you would like, but during late fall, winter, and early spring, the temperatures can be quite cold making it potentially dangerous, and likely very unpleasant. Many facilities are also closed at this time of the year. I recommend running this during September or October, when the weather is still mild, and the water is still warm.

  • No, the female Fastest Known Time (FKT) remains unclaimed. In the last event in May 2024, an accomplished trail runner attempted but DNF'd near the Provinceland dunes. If you're a top female ultrarunner and a glutton for punishment, take on this challenge and set the record. Push your limits, beat the clock, and etch your name in the record books!

  • The current fastest known time (FKT) for the Cape Cod Run Against The Tides is held by Lukas Janulaitis, who set a new record on May 18, 2024, with an almost impossible-to-beat time of 12 hours, 11 minutes, and 46 seconds. Lukas smashed the previous record of 17 hours, held by Alex Guglielmetti.

  • Run Info

    Check out all the rules and information about this run in the playbook below.

    Download Playbook

  • Tides

    The tides are an essential part of this run, to check out the tides now and in the future take a look at this tide chart.

    Tide Chart

  • Map of the Run

    To see the full 50+ mile route of this race, click on the button below.

    Route

  • Sea Meadow Inn

    The Sea Meadow Inn is the official endpoint of the race, and also a potential lodging destination for the race! To see photos and get more information click below.

    Sea Meadow Inn

MEET THE RUNNER

Alex Guglielmetti, a Cybersecurity Berkeley graduate and avid outdoor enthusiast, spends his free time embracing adventure in both Southern California, where he resides year-round, and the captivating landscapes of Cape Cod during the summer months. Inspired by his traverses along the vast coastal beauty of Cape Cod, he conceived the incredible RATT50 run, showcasing the most dynamic and stunning aspects of the region. Notably, Alex holds the record for the Fastest Known Time (FKT) for completing this challenging run, a remarkable feat accomplished in just 17 hours. He hopes that his route will beckon fellow outdoor enthusiasts to explore Cape Cod's wilder side and discover its untamed allure.

CONTACT

If you have any questions or want to inquire about running with a group, please contact us using this form. We’ll get back to you as soon as possible!