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

Automotive Partner


When the first Porsche took to the road over 70 years ago, the Stuttgart marque also made its debut on the racetrack. The testing ground of motorsport has seen Porsche consistently push the boundaries of innovation with one goal in mind: the future of the sportscar.

Discover more

Charity Partner

Macmillan Cancer Support

We have partnered with Macmillan Cancer Support to help raise vital funds to support their work. This partnership gives athletes the opportunity to compete in Castle Race Series events with a discounted race place by making a fundraising commitment. There are also opportunities to make one off donations via our booking forms, via JustGiving, VirginMoney and at the live events.

Learn more

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.

Learn more

Communications Partner

Bulk SMS

BulkSMS has partnered with us right from the start, and we are excited to once again be using their SMS solutions to provide important race information and results to our competitors free of charge. facilitates cost-effective and reliable sending and receiving of SMS messages globally.

Learn more

Festival Partner

Timothy Taylor's

Timothy Taylor’s is an independent, family owned brewery based on the Knowle Spring in Keighley, Yorkshire. They have 160 years of brewing experience and are renowned for the quality of our cask conditioned, award winning beers.

Learn more

Swim Partner


Yonda puts your performance as their focus. Their wetsuits are built with technical neoprene panels, the right balance of flexibility and buoyancy and will aid your swim style. Their Italian made trisuits that are breathable, lightweight and fast drying – ensuring that you can keep racing towards the finish line. 

Learn more