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Ultimate 1/2 Triathlon

Click here to enter

Date: Sunday 25th June 2023
Venue: Alderford Lake, Whitchurch, SY13 3JQ
Swim: Lake: (Freshwater lake with no currents and no weed)
Starts From: 0900hrs 
Distances: 1.2 mile swim - 56 mile cycle - 13.1 mile run
Minimum Age: 18 Years (on race day)

Entry type:


Relay Team entries. 

Please Note: Competitor Race Day Information (Individual Start Times, Bib Numbers etc) will be emailed out to competitors 7-10 days before the event.
Don't want to go it alone? Take part as a relay team of 2 or 3 and share the challenge of swim, bike and run!
We just need the team captain's info to complete an entry form and your team is good to go!
Limited number of places! Secure yours NOW!

For more information, see the sections below:

The Event

The UK Ultimate 1/2 Triathlon is our demanding and much sought after 'half iron distance' event and returning yet again to the beautiful Alderford Lake venue in Whitchurch.

Looking for something smaller? Then take a look at the UK Ultimate 1/4 Triathlon.

  • Probably the fastest 'half iron distance' in the country
  • Freshwater lake swim with no current and no weed
  • Multi-lap lake swim with Australian exit in between laps
  • Picturesque countryside cycle & run routes, ideal for PB's
  • Swim start, transition & run finish all within a stone's throw of each other
  • Fantastic picturesque venue with on-site facilities including Showers, parking (charges apply) and lakeside cafe
  • Spectator friendly venue, great for supporting friends and family
  • For athletes convenience you register and rack your bike on race day for the Ultimate 1/2 Triathlon
  • Includes finishers medal and official race T-shirt

More information about your race

Please take some time to read all the event information, it will make it far more enjoyable for you and reduce the need to ask questions on the day. Good luck and have a great day!

Click here - Race Day Information

You can use this information as a guide for your 2022 event. Full and up to date 2022 competitor race day information with your race number and start time will be emailed to you 7-10 days before the event.

PLEASE NOTE WE DO NOT POST ANYTHING OUT - you will collect your race numbers, tattoos, stickers, etc. at registration on the day.

Start Times & Cut Off Times

Ultimate Half will start from 0900hrs with a rolling wave.

The cut-off times for the Ultimate Half Triathlon and Relay are as follows:

Swim: 1 hour 15 minutes after the start time

Bike: 6 hours after the start time

Run: 9 hours 30 minutes after the start time

Course Maps

PDF Documents: click each to open or download

Ultimate Half Triathlon - Main Arena
Ultimate Half Triathlon - Swim Course
Ultimate Half Triathlon - Bike Course

Cycle Course

To view course direction & distance markers, please click on, “view full version” (top left-hand corner of the map) or run your mouse cursor along the mountain graph to see course direction.

Run Course


Residents Notice

On Sunday the 25th June 2023 the Ultimate Triathlon will take place at Alderford Lake.

Tilstock Road will be closed from the outer limit of Tilstock to the roundabout on the Whitchurch bypass from 7am to 12 midnight.  Competitors will be running on Tilstock Road from 11am and turning at the outer limit of Tilstock before heading back to Alderford. Competitors will be swimming at Alderford Lake and cycling beforehand.

The event will have 500 competitors of all ages from all over the UK competing over the Ultimate Half Triathlon distances of 1.2 mile swim - 56 mile cycle - 13.1 mile run or The Ultimate Triathlon distances of 2.4 mile swim - 112 mile cycle - 26.2 mile run, many will be competing for charity.

Hopefully it won't inconvenience you but if it does, we are sorry in advance. Dependant on the competitors on the day, we will try to reopen the road by 10pm.

Thank you,

Vic Bickerton
Event Director


2020 Feedback on RaceCheck.com - Click Here

My first half, loved it, been reliving it all week. Everyone was so relaxed, supportive and helpful. Made the experience one I will never forget. I'll definitely be back to improve my time or even dare I say attempted the full distance x Thank you x

Deborah Clarke #366

First Middle Distance

What a great day, great event and great organisation.

The lake is fantastic, clear and warm when weraced. Bike chalenging without being too hard - pity about the A41 - zero local support on the route but great support at the turn point back at the lake.

Multi lap run with loads of feed stations and passes the finish area each lap so great for supporters and atmosphere.

Thouroughly enjoyed it and will be back...

Ian Cartwright #625

Yesterday's eventat Alderford was brilliant once again, I completed the ultimate half and the organisation and helpfulness of the team was brilliant.

Well done to allinvolved.

Mick Hutchins #211


If you are not local to the event and are planning to book accommodation please take a look at our places to stay information and map of the area.

There is a limited amount of free camping spaces available at Alderford Lake. These spaces must be pre booked.

Please email customercare@uktriathlon.co.uk to book your pitch.


Camping and/or Caravan available with full facilities at

Bradley Hall Rural Escapes (Glamping Pods)

Abbey Green Farm

Green Lane Caravan Park

Bramblewood Caravan Park

Mile Bank Farm

Roden View

Hadley Park Whitchurch

Sunny Oak Caravan Park

Previous year’s results

Event Photos

2022 Results

Due to a competitor having an accident on the course, the road had to be closed.

Times have been amended for every competitor stopped at the road closure due to the accident. The elapsed time from when the road reopened has been deducted from your bike time.


 For result queries please email results@uktriathlon.co.uk

Entry Form

Ultimate 1/2 Triathlon 2023


(Price per race entry or per relay team)

Please select your race from the drop down list below. The price will adjust automatically.

Transgender policy
Only people who are female sex at birth are eligible to compete in the Female category.
All individuals including transgender people are eligible to compete in the Open category. Responses to this question will enable us to allocate competitors into the correct race category as required under the British Triathlon Transgender Policy effective 1 January 2023. This policy can be read here and provides more information regarding race categories and eligibility.
For any queries about the transgender policy, please email concern@britishtriathlon.org


Telephone Entry

If you would prefer to enter over the phone please call

01270 842800 and secure your place today!

(Lines are open Monday to Friday, between 9:30am-3:00pm).


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