How far is the Thames Path Trail Run?

The Thames Path Trail Run offers 2 distances: 21.8k Half Marathon (13.5 miles), 15.7k Medium Route (9.8 miles).

How much climbing is in the Thames Path Trail Run?

The 21.8k Half Marathon has 69 m of ascent. The 15.7k Medium Route has 50 m of ascent.

How hard is the Thames Path Trail Run?

21.8k Half Marathon: Hard. TRP grades come from distance and climb measured off the course file, not from the organiser. The 15.7k Medium Route isn't graded yet.

Is the Thames Path Trail Run course marked?

Yes, the course is marked. Navigation skills are not required.

Can I download the Thames Path Trail Run route?

Yes. The GPX for each distance is free to download here, with no sign-up, the same as every route on Trail Running Planet.

When is the next Thames Path Trail Run?

Sat, 21 Nov 2026, 09:00. Not open yet.

UK Running Events Thames Path Trail Run

Alexandra Gardens, 3 Alma Rd, Windsor, BerkshireSat, 21 Nov 2026

Flat riverside run on the Thames Path from Alexandra Gardens, Windsor

Distance	Ascent	Per km
21.8k Half Marathon	69 m	3 m
15.7k Medium Route	50 m	3 m

Marked course

Nobody has reviewed this one yet

No reviews of the Thames Path Trail Run, and nothing on what people wore. Both are things no organiser publishes and every runner wants before they enter — how it actually went, and what was on your feet.

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HARD

TRP grade · E3

starts 09:00

Download GPXFree, no sign-up.

This file is from a previous running and the course may have changed since. If you are navigating with it, get the current version from UK Running Events first.

What you’re in for

A flat run along the Thames Path from Alexandra Gardens in Windsor, following the riverside path with very little climbing (69m on the half marathon). It makes an easy introduction to off-road running and a reasonable place to chase a time on trails, with river views most of the way. There are two distances, 21.8k and 15.7k, starting at 9:00 and 9:15, with a 1pm cut-off. Dogs are not allowed. Like the rest of the series, it is chip timed, with water at aid stations for runners carrying their own cup, and a medal and goodie bag at the finish.

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How to enter

Sat, 21 Nov 2026 · Not open yet · £39.5–£44.5

See the event on their website ↗

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Common questions

: The Thames Path Trail Run offers 2 distances: 21.8k Half Marathon (13.5 miles), 15.7k Medium Route (9.8 miles).
: The 21.8k Half Marathon has 69 m of ascent. The 15.7k Medium Route has 50 m of ascent.
: 21.8k Half Marathon: Hard. TRP grades come from distance and climb measured off the course file, not from the organiser. The 15.7k Medium Route isn't graded yet.
: Yes, the course is marked. Navigation skills are not required.
: We don't hold a compulsory kit list for the Thames Path Trail Run. UK Running Events confirm mandatory kit in their race information, usually in the final instructions.
: We don't hold published time limits for the Thames Path Trail Run. If UK Running Events set cut-offs, they'll be in the race information.
: We don't hold a checkpoint list for the Thames Path Trail Run. What's on the table varies a lot between races, so check the UK Running Events race information rather than turning up expecting food.
: Yes. The GPX for each distance is free to download here, with no sign-up, the same as every route on Trail Running Planet.
: Sat, 21 Nov 2026, 09:00. Not open yet.