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PARTNERS

We are very grateful to our official partners who help us deliver the very best racing experience for our athletes as possible.

Charity Partner

Alzheimer's Research UK

We have partnered with Alzheimer’s Research UK to raise vital funds for dementia research. This partnership lets athletes compete in Castle Race Series events at a discounted rate by making a fundraising pledge. You can also support through one-off donations via our booking forms, JustGiving, and at live events—all while enjoying the sport you love in stunning locations.

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Merch Partner

Scimitar

Look the part whether you’re training for your next event or lining up on race day with branded Castle Race Series kit from our official merch partner, Scimitar.

We’ve been working with Scimitar for over 10 years, so they know a thing or two about creating kit that works both on and off the course. From training tops and technical layers to hoodies, socks and other CRS essentials, there’s plenty to choose from.

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Official Fuelling Partner

truefuels

truefuels is a premium sports nutrition brand founded by two-time Olympic champion Alistair Brownlee. Built on purity, precision, and scientific validation, it delivers modular, stackable fueling solutions that eliminate digestive distress and flavour fatigue, empowering athletes with only essential nutrients for optimal performance, recovery, hydration, and daily nutrition.

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Coaching Partner

Tri Training Harder

Tri Training Harder are a group of highly skilled and passionate coaches who help prepare athletes to achieve their extraordinary dreams. Tri Training Harder help Castle Race Series athletes prepare for our iconic events through different coaching packages which include race specific training plans, pre-event training sessions and a virtual training club.

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Communications Partner

Bulk SMS

BulkSMS has been a steadfast supporter of the Castle Race Series from the very beginning. They provide competitors with essential race information directly to their phones, ensuring everyone stays informed. As a leading SMS messaging service provider, BulkSMS offers seamless two-way communication from any internet-enabled device. Their extensive gateway connects with over 800 mobile network operators worldwide, facilitating reliable communication across borders.

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