The next edition of OTT Ultra takes place on 6 November 2027.

Where does OTT Ultra take place?

OTT Ultra takes place in Merthyr Tydfil, UK.

How is OTT Ultra rated by runners?

OTT Ultra has an average rating of 4.91 out of 5 from 46 verified participant reviews on Racecheck.

What is OTT Ultra like?

Based on participant reviews, runners describe it as: Challenging (50% of reviews), Small & Intimate (92% of reviews), Remote Nature (75% of reviews), Hilly (61% of reviews).

OTT Ultra reviews | Racecheck

Name: OTT Ultra
Start: 2027-11-06
End: 2027-11-06
Location: Merthyr Tydfil, UK
Rating: 4.91

Michael C.

5.0

· 2026 Ultra ·

Loved absolutely everything about the day. There was clear communication from the organisers, amazing support at aid stations and a good atmosphere amongst all taking part. The course itself is challenging and varied and if you can’t enjoy yourself in this environment then I don’...

Loved absolutely everything about the day. There was clear communication from the organisers, amazing support at aid stations and a good atmosphere amongst all taking part. The course itself is challenging and varied and if you can’t enjoy yourself in this environment then I don’t know what to suggest. I, personally, can’t wait to do it again next year - and don’t have to with the summer Ultra-R

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Daniel G.

4.8

· 2026 Ultra ·

Really good event. The route is very runnable, but a nice mix of fire roads, technical descents, single track, bogs, and the highest mountain in Y Bannau national park. The checkpoint crew were amazing, cheerful and helpful.

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Peter s.

5.0

· 2026 Ultra ·

Definitely not for the faint hearted Stunning route When you hit penyfan you will be questioning your life choices But once you get down the other side Life begins to make sense It’s a great race Who knows I might have another go

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Mark G.

5.0

· 2026 Ultra ·

So many nice people. Plenty of refreshments. Easy to find and a pleasure to take part. Thank you for lovely weekend.

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Suzanne R.

4.8

· 2026 Ultra ·

A great challenge! The course was well marked, so much so that we didn’t really need the GPX on my watch! We thought this was great as we are not local to the area so needed the guidance one way or another. The marshals at the checkpoints were great, full of enthusiasm at every...

A great challenge! The course was well marked, so much so that we didn’t really need the GPX on my watch! We thought this was great as we are not local to the area so needed the guidance one way or another. The marshals at the checkpoints were great, full of enthusiasm at every one and all were keen to help. Great food at the aid stations too - the chips at checkpoint 4 were lovely! There was obviously great communication between the OTT team and the other event taking place up Pen y Fan as their marshals were directing us too where the courses split - team work at its best. Good communication from entry to after the event. Would definitely recommend.

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Adam b.

4.8

· 2026 Ultra ·

A very well planned and organised race, Ive done a few ultras but this was by far the easiest to navigate, all sinage very well placed and clear, almost impossible to miss. Was great to concentrate on my running and not have to keep checking my watch gps. Very runnable cours...

A very well planned and organised race, Ive done a few ultras but this was by far the easiest to navigate, all sinage very well placed and clear, almost impossible to miss. Was great to concentrate on my running and not have to keep checking my watch gps. Very runnable course. Look forward to doing more events with this company

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Richard H.

5.0

· 2026 Ultra ·

My second time running this event, and it's one of my favourites. Great team, volunteers, and organisation throughout the day. I'm very much a mid-to-back of the pack 'runner' and even though half the field had passed through each checkpoint before me every aid station was stocke...

My second time running this event, and it's one of my favourites. Great team, volunteers, and organisation throughout the day. I'm very much a mid-to-back of the pack 'runner' and even though half the field had passed through each checkpoint before me every aid station was stocked well, every person was friendly, helpful, and kind, and every finisher made to feel like they were top 10.

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Miss T.

4.6

· 2026 Ultra ·

Great day!

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Nicola B.

4.9

· 2026 Ultra ·

A great, if brutal, event. The middle 10 miles made me question my life choices, but that's because I'm not a mountain goat! 🐐 Scenery was amazing, checkpoint people were awesome, organisation was excellent and a downhill finish hit the spot. Not sure my quads are appreciating...

A great, if brutal, event. The middle 10 miles made me question my life choices, but that's because I'm not a mountain goat! 🐐 Scenery was amazing, checkpoint people were awesome, organisation was excellent and a downhill finish hit the spot. Not sure my quads are appreciating the downhill stretches this morning 😂😂 Thanks very much for putting on a great event.😍👏👏

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Jonathan S.

4.8

· 2026 Ultra ·

A brilliant event run by real people that was my first ultra and it tested me to my limits but I will be back next year fitter wiser and better prepared I very highly recommend this for beginners but be warned it will challenge you massively. Huge thanks to all staff and voluntee...

A brilliant event run by real people that was my first ultra and it tested me to my limits but I will be back next year fitter wiser and better prepared I very highly recommend this for beginners but be warned it will challenge you massively. Huge thanks to all staff and volunteers who made this amazing event possible

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OTT Ultra