How far is the Harrold Odell Trail Races?

The Harrold Odell Trail Races offers 2 distances: 50K (31.1 miles), 25K (15.5 miles).

Is the Harrold Odell Trail Races course marked?

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

Thunder Races Harrold Odell Trail Races

Harrold-Odell Country Park, BedfordshireSat, 13 Mar 2027

A 25km and a 50km from Harrold-Odell Country Park in the Great Ouse valley, fully marked and marshalled with generous cut-offs and runnable ground. Pitched at first-timers and anyone stepping up in distance.

Distance	Ascent	Per km
50K	—	—
25K	—	—

lakesideriversidegrasswoodlandMarked course

Nobody has reviewed this one yet

No reviews of the Harrold Odell Trail Races, 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.

Ran it? Write the first review

Running it soon? Connect Strava and we will ask you about it the day you finish, so you do not have to remember to come back.

Pick your distance

Start time not confirmed yet — check with the organiser.

Partner · affiliate policy

Cut-offs

All to finish by 17:00.

How to enter

Sat, 13 Mar 2027 · Not open yet

See the event on their website ↗

Entries are handled by Race Space, not by us. We take nothing for sending you there.

Add to your calendar · as an all-day entry, until the start time is confirmed

Common questions

: The Harrold Odell Trail Races offers 2 distances: 50K (31.1 miles), 25K (15.5 miles).
: No course file for the Harrold Odell Trail Races yet, so there's no measured climb here. When Thunder Races publish one, this fills in.
: Not graded yet. A TRP grade is worked out from distance and climb measured off the course file, and there isn't one for the Harrold Odell Trail Races yet.
: Yes, the course is marked. Navigation skills are not required.
: We don't hold a compulsory kit list for the Harrold Odell Trail Races. Thunder Races confirm mandatory kit in their race information, usually in the final instructions.
: All to finish by 17:00.
: We don't hold a checkpoint list for the Harrold Odell Trail Races. What's on the table varies a lot between races, so check the Thunder Races race information rather than turning up expecting food.
: Not yet — we don't hold a course file for the Harrold Odell Trail Races. Some organisers only send the GPX to entrants. If we get one, it goes up free, with no sign-up.
: Sat, 13 Mar 2027. Not open yet.