Royal Windsor 10K June 2026

Join Us for the Royal Windsor 10K on Sunday 14th June 2026 and celebrate our 35th Year Anniversary! 

Step into history at the Royal Windsor Triathlon 10K! On Sunday, 14th June 2026, lace up for a run like no other. Starting riverside at Alexandra Gardens, you’ll race through Windsor’s charming streets before entering the majestic Windsor Great Park. With every stride along the Long Walk, Windsor Castle rises ahead, guiding you to a finish worthy of royalty. Whether you’re chasing a PB or soaking in the atmosphere, this 10K promises unforgettable views, a buzzing race village, and a medal to treasure. Join us for the 35th anniversary of this legendary event – your summer starts here!

Enter Royal Windsor Triathlon which is on same day as Royal Windsor 10K

The Royal Windsor Triathlon is operated by RunThrough as the Official Event Delivery Partner. 

Race Distances: 10KM

Start Times: 10:00 am

Race day pass is not included in the above entry fee and needs to be bought at checkout

Prices are as follows:

10k - Early Bird £40 | Standard - £50 | Last Minute - £55

Included in the entry

Unique Themed Medal

Free Race Photos

Chip-Timed Results

Awarded BTF's 'Event of the Year' an incredible seven times, this legendary triathlon continues to draw thousands each year with its quality, location, and unforgettable course.

*Please note: BTF Race day pass is not included in the entry and needs to be purchased separately

Each kilometre is accurately marked with distance flags and our friendly marshals will guide and cheer you all the way to the finish. We cannot wait to welcome you to Royal Windsor Triathlon.

With RunThrough you can expect a friendly team of marshals to help guide you round the course and cheer you on to the finish, a lively and well-serviced event village with plenty of food and drink options including free goodies from our partners at the finish line after your hard effort.

We have been extensively researching what runners consider important, and sustainability is fast becoming the top issue. Click here to see what RunThrough is doing for sustainability.

You can now grab your Royal Windsor Triathlon event t-shirt for more than 30% off when you buy it as part of your entry on checkout! With the event logo printed on the chest, it’s the perfect keepsake to celebrate your race and wear your achievement with pride!

We can do this with our partner RT Kit as part of a strategic decision to raise awareness about the quality of the product whilst reducing the overall cost of events for those who would prefer not to have a t-shirt included.

Come and enjoy the day with us. Once you enter you will receive a confirmation email. More information will be sent closer to the event.

We can’t wait to see you on the start line!