top of page

Ultra-Trail Snowdonia (UTS) 25K By UTMB

  • Writer: Yuenny Lam
    Yuenny Lam
  • Jun 4, 2024
  • 3 min read

As an inexperienced trail runner, I decided to take on this great big challenge of running up and down this big famous mountain located in Wales - Mount Snowdon.

view of Mount Snowdon

It wasn't just a case of running up Snowdon and leisurely coming back down once I've reached the top. It was something much harder than that. I signed up to the Ultra-Trail Snowdonia (UTS) 20K.


Race Day & Distance

Race day in 2024 was on Saturday the 11th May. The category distance is 20K, but the official course is just over 25km from start to finish.


This is only the second time the UTS 25K distance has taken place. Previously the shortest UTS distance was 50K and there's also 100K, as well as 100M.


Cut-Off

The 25K cut-off is 5.5 hours. Having done my first ever trail run of 15K the summer before, I was secretly confident that I'll finish this Snowdonia run before the cut-off. I couldn't have been more wrong...

runners and walkers struggling to climb Snowdon

There is one checkpoint/aid station around 14K with cut-off at 13:30.


UTMB has a very strict cut-off and I missed it, but I still got a medal after I crossed the finish line. You just don't get any UTMB Index Stones and I have DNF against my name on the results page.

Ultra-Trail Snowdonia (UTS) 25K finisher's medal

Waves

In 2024 there were two start waves, 9:45 and 10:00, to ease the amount of people climbing Snowdon at the same time. We were lucky (or unlucky) enough to have some really nice hot sunny weather on race day, so the top of Snowdon was very busy. There were loads of tourists on the Saturday, so I didn't get right to the top on race day, as this would've added too much time waiting in the queue.


Mandatory Kit & Bib Collection

You can get your mandatory kit checked and bib collected on Friday 14:00-22:00, as well as Saturday 8:00-9:30 for the 25K distance. A QR code gets e-mailed to you beforehand, which you need to bring to collect your race number. The hot/cold weather kit will also be checked at this stage, so make sure you have everything with you in case there are some last-minute changes, but any updates should be communicated to runners the day before.

runner holding bib in front of UTMB Ultra-Trail Snowdonia (UTS) start and finish line

LiveTrail App

Downloading the LiveTrail app is part of the mandatory list and it gives you more information about your race. It is also through this app where the hot/cold weather items are confirmed. Make sure you have notifications turned on for this, as mine was turned off and I didn't see the hot weather update. It wasn't a problem though, as I brought every single item with me ready for kit check.


T-Shirt/Buff

Once your details and kit are checked you will be given a wrist band and your race number, where you will move along the queue to collect your physical bib and t-shirt (if applicable). This year the 25K distance was a UTMB Buff, which I am just as happy about.

Ultra-Trail Eryri 20K race bib and wrist band

Parking

There are a few car parks near the start/finish line and most of them you can easily walk to and from the Slate Museum (where the race starts and finishes). We had no issues finding a parking space on the day, but we arrived very early. Do bear in mind that visitors who aren't attending the UTS event go there for the day, so the later you get there the busier the car parks will be.


We paid £6 to park all day, which isn't too bad at all.


Road closures

Sections of roads near the start/finish will be closed while runners start in each wave. They aren't closed for long, just long enough to allow all runners to start, run around the corner towards the start of the Snowdon climb and the roads re-open for cars.

road closure allowing runners to safely pass

Bag Drop

There is no bag drop for the 25K distance, but for this distance you probably won't need this facility.


Conclusion

To me this was a really hard race, especially on a hot day that we had this year. I wasn't able to train properly due to running injuries a few weeks back and I don't recommend running this race without training.


It is do-able, but the steep hills are challenging just to walk up them, let alone try to run them. For me the worst part was not having strong enough quadriceps to cope with the downhill bashing of the knees.


Overall, it is a very well organised race and I've had such a lovely time running (and struggling) to the end. It's been a really positive and memorable experience for me. Not to mention the amazing views the higher you climb up Snowdon.


I would highly recommend running the UTS 25K (with training)!











Comentários


Debunking Mandatory Kit - Going Through What You Need To Pack For The 25K Ultra Trail Snowdonia 2025
22:22

Debunking Mandatory Kit - Going Through What You Need To Pack For The 25K Ultra Trail Snowdonia 2025

Here I am going through the mandatory kit list for this year's Ultra Trail Snowdonia 25K. I will also be sharing with you what's on the hot weather and cold weather kit list. Mandatory Kit List https://shorturl.at/NfHla Ultra Trail Snowdonia 2024 Race Video https://youtu.be/KrlUEVKRz3A Mistakes and Goal - UTS25 Video https://youtu.be/8D6aOZzHzVI First Ever Ultra Marathon 50K Video https://youtu.be/9KJ5ARNEkBw Salamon ADV Skin Hydration Vest Video https://youtu.be/eTvczYDHHyk Hydration Vest Size Up or Down Video https://youtu.be/tjcE3oD9eMs Topo Athletic MTC Racer 3 First Impression Video https://youtu.be/1E6BnQoHn28 A P P Garmin Connect https://shorturl.at/yINRY Runna https://shorturl.at/gxKY5 I N S T A G R A M : https://www.instagram.com/yuennylam B L O G : https://www.yuennylam.com E M A I L : yuennymail@gmail.com E Q U I P M E N T GOPRO Hero 11 https://amzn.to/43ZUOkl DJI Osmo Pocket 3 LED Ring Light https://amzn.to/3i8Wm5k Handheld Selfie Stick https://amzn.to/3COaziD Manfrotto Tripod W A T C H E S Garmin Forerunner 955 Solar ---------------------------------------------------------- Disclosure: NOTHING IN THIS VIDEO IS SPONSORED. There are some affiliate links above and I may receive commission for purchases made through links in the description, but these are products I have personally tried, own(ed) or would highly recommend. You, as a consumer, do not pay extra if you choose to make purchases through these links. ---------------------------------------------------------- #ultratrail #trailrunner #running
Bath Ultra Marathon Recap & Gear Review 2025 - Salomon + Quiver, Harrier, Asics
20:31

Bath Ultra Marathon Recap & Gear Review 2025 - Salomon + Quiver, Harrier, Asics

Here I am sharing a recap after running my first ever Ultra Marathon 50km in Bath. I'll be going through the challenges, likes and dislikes. I'm also going to be talking about my gear, what worked and what didn't work. Running gear including Salomon ADV Skin 12L hydration vest, Harrier Helvellyn Carbon Pro poles, Asics Gel-Trabuco Terra trail running shoes. First Ultra Marathon 50km Race Day Video https://youtu.be/9KJ5ARNEkBw First Ultra Marathon 50K Kit List Video https://youtu.be/Cjv1HI0xyrg NEW 2025 SALOMON ADV Skin 12L Video https://youtu.be/eTvczYDHHyk FAILED Long Run Before Newport Marathon Video https://youtu.be/htf0qul_Quk A P P Garmin Connect https://shorturl.at/yINRY Runna https://shorturl.at/gxKY5 I N S T A G R A M : https://www.instagram.com/yuennylam B L O G : https://www.yuennylam.com E M A I L : yuennymail@gmail.com E Q U I P M E N T GOPRO Hero 11 https://amzn.to/43ZUOkl DJI Osmo Pocket 3 LED Ring Light https://amzn.to/3i8Wm5k Handheld Selfie Stick https://amzn.to/3COaziD Manfrotto Tripod W A T C H E S Garmin Forerunner 955 Solar ---------------------------------------------------------- Disclosure: NOTHING IN THIS VIDEO IS SPONSORED. There are some affiliate links above and I may receive commission for purchases made through links in the description, but these are products I have personally tried, own(ed) or would highly recommend. You, as a consumer, do not pay extra if you choose to make purchases through these links. ---------------------------------------------------------- #ultramarathon #trailrunning #running
Beginner's FIRST 50K Ultra Marathon 2025 Challenge Kit List / Packing List
10:03

Beginner's FIRST 50K Ultra Marathon 2025 Challenge Kit List / Packing List

Here I am sharing with you my packing list for the Bath 50K Ultra Marathon by Ultra Challenge https://www.ultrachallenge.com/bath-50-challenge/ This will be my first EVER Ultra Marathon and also the longest distance I'll be running so far. NEW 2025 SALOMON ADV Skin 12L Video https://youtu.be/eTvczYDHHyk Mount To Coast R1 Wide Tow Box Running Shoes https://youtu.be/WpAwCocQPNU 2025 Newport Marathon Goal Video https://youtu.be/OxdcipV_yho P R O D U C T S SALOMON ADV Skin 12L Vest https://shorturl.at/TsEzy SALOMON Custom Quiver https://amzn.to/4iAwLA8 HARRIER Helvellyn Carbon Pro V2 https://shorturl.at/DBXfV A P P Garmin Connect https://shorturl.at/yINRY Runna https://shorturl.at/gxKY5 I N S T A G R A M : https://www.instagram.com/yuennylam B L O G : https://www.yuennylam.com E M A I L : yuennymail@gmail.com E Q U I P M E N T GOPRO Hero 11 https://amzn.to/43ZUOkl DJI Osmo Pocket 3 LED Ring Light https://amzn.to/3i8Wm5k Handheld Selfie Stick https://amzn.to/3COaziD Manfrotto Tripod W A T C H E S Garmin Forerunner 955 Solar ---------------------------------------------------------- Disclosure: NOTHING IN THIS VIDEO IS SPONSORED. There are some affiliate links above and I may receive commission for purchases made through links in the description, but these are products I have personally tried, own(ed) or would highly recommend. You, as a consumer, do not pay extra if you choose to make purchases through these links. ---------------------------------------------------------- #ultramarathon #ultrarunner #runner
Why I Choose MIP Display In 2025, GARMIN On Small Wrist, Worth Upgrading Forerunner From 255 To 955?
15:55

Why I Choose MIP Display In 2025, GARMIN On Small Wrist, Worth Upgrading Forerunner From 255 To 955?

Here I am sharing with you reasons why I chose not to buy the new Garmin Forerunner 965 or 165 with AMOLED screen. I'm also going to tell you if you should upgrade from the Garmin Forerunner 255 to Forerunner 955, as well as share with you how the 955 Solar looks on my small wrist. GARMIN Forerunner 255 On Small Wrist Video https://youtu.be/GgYk6ILz6vg GARMIN Forerunner 255 Music Review Video https://youtu.be/eehLt5QGAu4 GARMIN Recertified (Broken Watch) Experience Video https://youtu.be/0wKIOjl3QFk NEW 2025 SALOMON ADV Skin 12L Video https://youtu.be/eTvczYDHHyk I N S T A G R A M : https://www.instagram.com/yuennylam B L O G : https://www.yuennylam.com E M A I L : yuennymail@gmail.com A P P Garmin Connect https://shorturl.at/yINRY Runna https://shorturl.at/gxKY5 E Q U I P M E N T GOPRO Hero 11 https://amzn.to/43ZUOkl DJI Osmo Pocket 3 LED Ring Light https://amzn.to/3i8Wm5k Handheld Selfie Stick https://amzn.to/3COaziD Manfrotto Tripod W A T C H E S Garmin Forerunner 955 Solar ---------------------------------------------------------- Disclosure: NOTHING IN THIS VIDEO IS SPONSORED. There are some affiliate links above and I may receive commission for purchases made through links in the description, but these are products I have personally tried, own(ed) or would highly recommend. You, as a consumer, do not pay extra if you choose to make purchases through these links. ----------------------------------------------------------
Should You Accept GARMIN Recertified Watch? Forerunner 955 Solar Worth It? + Q&A
14:42

Should You Accept GARMIN Recertified Watch? Forerunner 955 Solar Worth It? + Q&A

Here I am sharing my experience with Garmin sending me a recertified watch. My Garmin Forerunner 955 Solar is still under warranty and broker after 7 months. Should you accept a used/refurbished watch? Also doing a quick review of the watch and answering some of my most asked questions. Garmin Forerunner 255 On Small Wrist Video https://youtu.be/GgYk6ILz6vg Garmin Forerunner 955 Broke After 7 Months Video https://youtu.be/XvzyO_FpFm0 NEW 2025 SALOMON ADV Skin 12L Video https://youtu.be/eTvczYDHHyk Mount To Coast R1 Wide Tow Box Running Shoes https://youtu.be/WpAwCocQPNU 2025 Newport Marathon Goal Video https://youtu.be/OxdcipV_yho P R O D U C T S https://www.yuennylam.com/products A P P Garmin Connect https://shorturl.at/yINRY Runna https://shorturl.at/gxKY5 I N S T A G R A M : https://www.instagram.com/yuennylam B L O G : https://www.yuennylam.com E M A I L : yuennymail@gmail.com E Q U I P M E N T GOPRO Hero 11 https://amzn.to/43ZUOkl Canon 60D - https://amzn.to/2tcoAXa Fujifilm XT-100 - https://amzn.to/2S3qwK5 Purple Panda Lavalier Microphone https://amzn.to/3wd61zY RODE Camera Microphone https://amzn.to/3w9RVPY TASCAM DR-05 https://amzn.to/3pqS5l6 LED Ring Light https://amzn.to/3i8Wm5k Handheld Selfie Stick https://amzn.to/3COaziD Manfrotto Tripod W A T C H E S Garmin Forerunner 955 Solar ---------------------------------------------------------- Disclosure: NOTHING IN THIS VIDEO IS SPONSORED. There are some affiliate links above and I may receive commission for purchases made through links in the description, but these are products I have personally tried, own(ed) or would highly recommend. You, as a consumer, do not pay extra if you choose to make purchases through these links. ---------------------------------------------------------- #garmin #warranty
2025 Updated SALOMON ADV Skin 12L Running Hydration Vest, Is The New Model Better And Less Scratchy?
16:37

2025 Updated SALOMON ADV Skin 12L Running Hydration Vest, Is The New Model Better And Less Scratchy?

Here I am revealing the new model of Salomon ADV Skin 12L Hydration Vest. New updated version in 2025. One of the most popular (trail) running vests out there and this will accompany me during my training and actual ultra marathons this year. Harrier Curbar 5L Hydration Vest https://youtu.be/V4WRZnS7GBI Mount To Coast R1 Wide Tow Box Running Shoes https://youtu.be/WpAwCocQPNU 2025 Newport Marathon Goal Video https://youtu.be/OxdcipV_yho 2024 Slow Runner Achievement Video https://youtu.be/i2x81UBaNBE Chicago Marathon 2024 Race Day Video https://youtu.be/NHqNQjPX-m8 P R O D U C T S : SALOMON ADV Skin 12 (New 2025) https://shorturl.at/dgNEB SALOMON ADV Skin 12 (Old) https://shorturl.at/6Aztb HARRIER Curbar 5L https://shorturl.at/x4RvK HARRIER Kinder 10L https://shorturl.at/mS8RZ I N S T A G R A M : https://www.instagram.com/yuennylam B L O G : https://www.yuennylam.com N E W S L E T T E R : https://yuenny.substack.com E M A I L : yuennymail@gmail.com P R O D U C T S https://www.yuennylam.com/products A P P Garmin Connect https://shorturl.at/yINRY Runna https://shorturl.at/gxKY5 E Q U I P M E N T GOPRO Hero 11 https://amzn.to/43ZUOkl DJI Osmo Pochet 3 W A T C H E S Garmin Forerunner 955 Solar ---------------------------------------------------------- Disclosure: NOTHING IN THIS VIDEO IS SPONSORED. There are some affiliate links above and I may receive commission for purchases made through links in the description, but these are products I have personally tried, own(ed) or would highly recommend. You, as a consumer, do not pay extra if you choose to make purchases through these links. ---------------------------------------------------------- #salomon #hydrationvest #running
No More Foot/Arch Pain, Wide Toe Box Easy Long Run Shoes | MOUNT TO COAST R1 First Impression
08:50

No More Foot/Arch Pain, Wide Toe Box Easy Long Run Shoes | MOUNT TO COAST R1 First Impression

Here I am running in my new Mount To Coast R1 running shoes. Advertised as road Ultramarathon shoes, which are really comfortable with an incredibly wide toe box. I've been having foot pain and was told this is plantar fasciitis. Despite stretching and strength workouts, the discomfort is still present during long runs, but since running in these R1s, I no longer feel the foot pain, which is amazing. Mount To Coast R1 Shoes (UK) https://shorturl.at/XUCYS Mount To Coast R1 Shoes (US) https://shorturl.at/6SB8s 2025 Newport Marathon Goal Video https://youtu.be/OxdcipV_yho 2024 Slow Runner Achievement Video https://youtu.be/i2x81UBaNBE Chicago Marathon 2024 Race Day Video https://youtu.be/NHqNQjPX-m8 Finally A Half Marathon PB Video https://youtu.be/Tn39xuiIj70 P R O D U C T S https://www.yuennylam.com/products A P P Garmin Connect https://shorturl.at/yINRY Runna https://shorturl.at/gxKY5 I N S T A G R A M : https://www.instagram.com/yuennylam B L O G : https://www.yuennylam.com N E W S L E T T E R : https://yuenny.substack.com E M A I L : yuennymail@gmail.com E Q U I P M E N T GOPRO Hero 11 https://amzn.to/43ZUOkl Canon 60D - https://amzn.to/2tcoAXa Fujifilm XT-100 - https://amzn.to/2S3qwK5 Purple Panda Lavalier Microphone https://amzn.to/3wd61zY RODE Camera Microphone https://amzn.to/3w9RVPY TASCAM DR-05 https://amzn.to/3pqS5l6 LED Ring Light https://amzn.to/3i8Wm5k Handheld Selfie Stick https://amzn.to/3COaziD Manfrotto Tripod W A T C H E S Garmin Forerunner 955 Solar ---------------------------------------------------------- Disclosure: NOTHING IN THIS VIDEO IS SPONSORED. There are some affiliate links above and I may receive commission for purchases made through links in the description, but these are products I have personally tried, own(ed) or would highly recommend. You, as a consumer, do not pay extra if you choose to make purchases through these links. ---------------------------------------------------------- #MarathonShoes #runningshoes #marathontraining
Chicago Marathon Race Day As A Slow Runner - Marathon PB?? (World Marathon Major)
07:04

Chicago Marathon Race Day As A Slow Runner - Marathon PB?? (World Marathon Major)

Here I am running my first World Marathon Major in Chicago. Did I run a Marathon PB as a slow runner? One Week Until Chicago Marathon Video https://youtu.be/2xW7YFyJ21k Finally A Half Marathon PB Video https://youtu.be/Tn39xuiIj70 Chicago Marathon Training Long Run 25K & Update Video https://youtu.be/HJC0RhvV46w Recovery During Marathon Training Tips Video https://youtu.be/arsxubp46nQ How To Carry Marathon Fuel Video https://youtu.be/yDgqedBmnCk P R O D U C T S https://www.yuennylam.com/products A P P Garmin Connect https://shorturl.at/yINRY Runna https://shorturl.at/gxKY5 I N S T A G R A M : https://www.instagram.com/yuennylam B L O G : https://www.yuennylam.com N E W S L E T T E R : https://yuenny.substack.com E M A I L : yuennymail@gmail.com E Q U I P M E N T GOPRO Hero 11 https://amzn.to/43ZUOkl Canon 60D - https://amzn.to/2tcoAXa Fujifilm XT-100 - https://amzn.to/2S3qwK5 Purple Panda Lavalier Microphone https://amzn.to/3wd61zY RODE Camera Microphone https://amzn.to/3w9RVPY TASCAM DR-05 https://amzn.to/3pqS5l6 LED Ring Light https://amzn.to/3i8Wm5k Handheld Selfie Stick https://amzn.to/3COaziD Manfrotto Tripod W A T C H E S Garmin Forerunner 955 Solar ---------------------------------------------------------- Disclosure: NOTHING IN THIS VIDEO IS SPONSORED. There are some affiliate links above and I may receive commission for purchases made through links in the description, but these are products I have personally tried, own(ed) or would highly recommend. You, as a consumer, do not pay extra if you choose to make purchases through these links. ---------------------------------------------------------- #ChicagoMarathon #MarathonPB
bottom of page