PHOENIX - Twelve in Twelve Run Series 2027

Spring into action with the highly anticipated Phoenix Running & Global Marathon Challenges' Easter Twelve in Twelve series, set for March and April 2027. The event offers runners an unparalleled opportunity to immerse themselves in a marathon of marathons from Thursday, March 18th through Easter Monday, March 29th. Joining the ranks will be the Phoenix Ten in Ten, running concurrently but over ten days starting on Saturday, March 20th.
Participants have the unique option to "Double-Down," completing not one but two half marathons daily for a grand total of twenty or twenty-four races across ten or twelve consecutive days. This grueling yet rewarding challenge promises an epic experience that caters to all levels of runners, from seasoned pros to those seeking a personal best.
The event unfolds along the picturesque Thames Path in Walton-on-Thames, offering participants stunning views and varied terrain as they traverse the 5.3km out-and-back route multiple times daily. Each lap is part of an officially measured UKA/IAAF-certified course, ensuring accuracy and fairness for all competitors. Early birds can take advantage of extended running hours, stretching their runs up to nine hours a day.
The atmosphere at Phoenix Running & Global Marathon Challenges is electric with a strong sense of community among participants. The Weir Pub stands ready to serve runners each morning with a special "runners breakfast," while the event's aid station or "tuck shop" stocks an array of sweet and savory treats, ensuring no one goes hungry during their marathon journey.
What sets this series apart is its commitment to rewarding every participant’s efforts. Finishers are presented with bespoke GMC finisher t-shirts at the end line and a collection of spectacular medals known as Phoenix Lanterns. Each day brings a new medal in a unique color that symbolizes personal growth, resilience, and perseverance, culminating in an impressive set for those who complete all ten or twelve days.
For runners looking to stretch their limits beyond half marathons, the event offers marathon, ultra-marathon distances, as well as timed events with mixed distances. Each category comes with its own time limit—5 hours for Half Marathons, 7 hours each day for Marathons and Ultra-Marathons (with an extended option up to nine hours), providing flexibility while maintaining a sense of challenge.
The Easter Twelve in Twelve series is more than just a race; it's a celebration of running culture where every finisher becomes part of something bigger. With the promise of discounts on entry fees until April 30th, 2026, and an array of personalized rewards for your efforts, this event invites you to step up to the challenge and embrace the beauty of endurance.
Join us in Walton-on-Thames as we come together to push boundaries, share stories, and create memories that will last a lifetime. The Phoenix Running & Global Marathon Challenges await those who dare to run beyond their limits.
This is an event where every lap counts, and each finish line crossed marks another step towards personal triumph. Whether you're aiming for the Double-Down challenge or simply enjoying the scenic routes along the Thames Path, there's a place here for everyone ready to experience one of Britain’s largest multi-day running events in 2027.