The Northumbrian Full & Half Iron-Distance Triathlon

Sun 29th June 2025

A triathlon starts with participants running into the water under a starting arch that emits orange smoke. A crowd watches by the side, and trees form the backdrop. The sky is overcast, and the scene is filled with anticipation and energy. A group of swimmers in open water, wearing swim caps and wetsuits, competes in a race. Yellow buoys mark the route, and a forested shoreline is visible in the background under a cloudy sky. A cyclist wearing a blue and red jersey and white helmet rides uphill on a winding road surrounded by rolling green hills. Other cyclists are seen further back along the road. The sky is cloudy, casting shadows on the landscape. Three athletes run along a dirt trail in a lush, green forest. The runner in the foreground is wearing black sportswear, while the two runners in the background wear lighter, colorful gear. The sunlight filters through the trees, casting dappled shadows on the path. Two participants celebrate at the finish line of The Northumbrian event. They are raising champagne bottles and wearing medals, smiling joyfully. The banner and crowd barriers in the background highlight the festive atmosphere of the race's conclusion. Two people in athletic gear run on a gravel path through a lush, green forest with a large lake and rolling hills in the background. The sky is partly cloudy, casting dappled sunlight over the serene landscape. A scenic view of a winding road through lush green hills with several cyclists riding uphill. The landscape features rolling hills and dense greenery under a partly cloudy sky. The cyclists are spread out on the road, pedaling at different paces.

The Northumbrian Full & Half Iron-Distance Triathlon

5.0 · 2 reviews

From Events of the North

  • Date Sun 29th June 2025
  • Location Hexham, Northumberland
  • Price £195.00 - £330.00
  • Races 4 races
  • Distances Ironman, Half Ironman / 70.3

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The Northumbrian Full & Half Iron-Distance Triathlon

Sun 29th June 2025

5.0 · 2 reviews
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Event summary

Events of the North presents The Northumbrian Full & Half Iron-Distance Triathlon, taking place on Sunday 29th June 2025 in Hexham, Northumberland. This ultimate endurance test will see participants tackle the stunning and challenging Kielder Water and Forest, showcasing the unique character of Northumberland. The event, now in its fourth year, offers both full and half iron-distance options, catering to individuals and teams looking to push their limits and conquer the beautiful terrain. The 70.3 HALF IRON TRI DISTANCE is a challenging feat on the undulating roads and trails of Kielder Water, promising a test of fortitude, adventure, and achievement. Don't miss out on the opportunity to be recognised as a true NORTHUMBRIAN - sign up and prepare to earn your kudos!

Organiser's Description

A full and half iron-distance triathlon in and around the stunning and challenging Kielder Water and Forest.

The ultimate endurance test will be open to a limited number of individuals and teams to conquer the beautiful waters, forests and terrain that give Northumberland and Kielder its unique character.

The summer of 2025 will welcome the fourth year of an event which combines scenery, fortitude, adventure, and achievement.

Everything it takes to be recognised as a NORTHUMBRIAN.

HALF THE DISTANCE, DOESN’T MEAN HALF THE KUDOS
The 70.3 HALF IRON TRI DISTANCE is a huge challenge on any terrain. The Northumbrian is set in and around the beautiful Kielder Water, whose roads and trails known for their undulating nature – this race will not be easy on the legs! Please ensure you are confident in your ability to complete the course before entering.

Races

  • Full Iron-Distance Triathlon

    £310.00

    Booking for more than 1?

  • Half Iron-Distance Triathlon

    £195.00

    Booking for more than 1?

  • TEAM Full Iron-Distance Triathlon

    £330.00

  • TEAM Half Iron-Distance Triathlon

    £210.00

Book

  • Full Iron-Distance Triathlon

    £310.00

    Booking for more than 1?

  • Half Iron-Distance Triathlon

    £195.00

    Booking for more than 1?

  • TEAM Full Iron-Distance Triathlon

    £330.00

  • TEAM Half Iron-Distance Triathlon

    £210.00

Course Details

The Northumbrian is set in and around the beautiful Kielder Water, whose roads and trails known for their undulating nature – this race will not be easy on the legs! Please ensure you are confident in your ability to complete the full course before entering.

SWIM:
1 or 2 laps in the breath-taking serenity of the famous Kielder Water, entry and exit via slipway. Wetsuits are mandatory.

BIKE:
1 or 2 laps through the stunning valley and a ride over the Border to conquer the challenging, inspiring roads. The majority of the route will be on open roads however there will be some partial closures for safety, the route will be fully marshalled including Moto marshals. Non-drafting, bikes must comply with British Triathlon rules.

RUN FULL DISTANCE:
1 lap along the infamous Forest trails that host the testing Kielder Marathon. Cut off time to start the run leg is 8 hours 10 minutes after race start.

What's Included

- The Northumbrian Paria Cycling Jersey (Individual entrants only)
- The Northumbrian Paria Cycle Cap (Team entrants only)
- Swim Cap
- Electronic Chip Timing
- On Course Support
- On Course Nutrition

  • Bespoke finishers medal and t-shirt
  • High quality goody bag

How to Get There

There is very limited public transport in the area. Please ensure you are able to make your own travel arrangement to the event for yourself and your bike before registering.

Parking

Parking is free for competitors.

Location

Waterside Park Kielder, NE48 1ER

FAQs

  • Is there a minimum age?

    Yes, athletes must be 18 or over on race day

  • How many people can enter in the relay?

    3 members in a team

  • Does my support crew have to enter?

    No

  • Is the race drafting?

    No, this is a NON drafting event, Moto marshals will be in place along the bike route

  • Are hand cycles allowed?

    Yes, as long as you are able to complete the course within the advertised cut off times

  • What happens if I need assistance in the Swim?

    If you are struggling and decide that you require assistance do your best to remain calm, raise your hand high into the air/shout to get the attention of the support boats and move to the outside of the course if you are able. You can hold on to a boat without being disqualified as long as the boat does not provide propulsion. There will also be regular kayak marshals along the swim route to aid the safety boats.

  • Is the bike route on closed roads?

    25% of the bike route will be fully closed roads. The remaining 75% is partially open to ordinary traffic on a quiet B road, however there are a number of dangerous areas if road regulations are not followed. Where the road is open to traffic, road traffic regulations must be strictly observed at all times.

  • What happens if I need to withdraw during the race?

    Please notify the nearest marshal and we will arrange for you to be collected from the course. If you are able to ride or run back to the event site or your car please notify a marshal of your withdrawal from the race.

  • Headphones

    Shokz or other bone conduction headphones are permitted on the RUN course only – no in-ear headphones are allowed.

  • Are Disc Wheels Permitted?

    Yes. However, race organisers reserve the right to restrict use depending on conditions.

  • Wetsuits

    Wetsuits are compulsory below 14 degrees C- optional between 14 – 22 and no wetsuits from 22+

  • Can all relay team members cross the finish line at the same time?

    Yes all team members are able to cross the finish line. Due to the narrow aspect of the course we can only allow this over the last 100m, we will have a waiting area for relay competitors to meet their teammate just before the finish.

  • Are TT bikes allowed?

    TT bikes are allowed. Most of the climbs are relatively shallow with longer descents. There are a few technical and narrow sections extra caution should be taken.

  • Can we practice the course prior to the race?

    You can practice the run and bike route but not the swim.

  • Will you send me information in advance?

    Once you have entered we will send race information via email. The race guide will be available from 2 weeks before the event. All participants must register on site on Saturday and collect your race number, timing chip & registration pack

Full Distance

The FULL ULTRA TRI DISTANCE is a huge challenge on any terrain. The Northumbrian is set in and around the beautiful Kielder Water, whose roads and trails known for their undulating nature – this race will not be easy on the legs! Please ensure you are confident in your ability to complete the full course before entering

Transition area will be in the large lower car-park at Waterside

  • SWIM 2.4 MILES – CUT OFF TIME 2HRS 20 AFTER RACE START: 4 laps in the breath-taking serenity of the famous Kielder Water, entry and exit via slipway. Wetsuits are mandatory.
  • BIKE 112 MILES – CUT OFF TIME 10HRS 30 AFTER RACE START: 2 laps through the stunning valley and a ride over the Border to conquer the challenging, inspiring roads. The majority of the route will be on open roads however there will be some partial closures for safety, the route will be fully marshalled including Moto marshals. Non-drafting, bikes must comply with British Triathlon rules.
  • RUN 26.2 MILES – CUT OFF TIME 17HRS 45 AFTER RACE START: 4 laps of Bull Crag covering the infamous Forest trails that host the testing Kielder Marathon. Cut off time to start the run leg is 10 hours 30 minutes after race start
  • TOTAL DISTANCE: 140.6 MILES
  • TOTAL ELEVATION: 3606M
  • START TIME 6:15AM
  • REGISTRATION: Sat 28th June
  • CUT OFF TIME: 17HRS 45MINS

HALF distance

The 70.3 HALF ULTRA TRI DISTANCE is a huge challenge on any terrain. The Northumbrian is set in and around the beautiful Kielder Water, whose roads and trails known for their undulating nature – this race will not be easy on the legs! Please ensure you are confident in your ability to complete the course before entering.

Transition area will be in the large lower car-park at Waterside

  • SWIM 1.2 MILES: 2 laps in the breath-taking serenity of the famous Kielder Water, entry and exit via slipway. Wetsuits are mandatory
  • BIKE 56 MILES: 1 lap through the stunning valley and a ride over the Border to conquer the challenging, inspiring roads. The majority of the route will be on open roads however there will be some partial closures for safety, the route will be fully marshalled including Moto marshals. Non-drafting, bikes must comply with British Triathlon rules.
  • RUN 13.1 MILES: 2 laps of Bull Crag covering the infamous Forest trails that host the testing Kielder Marathon
  • TOTAL DISTANCE: 70.3 MILES
  • TOTAL ELEVATION: 1803M
  • START TIME: 6:15AM
  • REGISTRATION: Sat 28th June
  • SWIM CUT OFF TIME: 2HR 20MINS
  • TOTAL CUT OFF TIME: 9 HOURS

TAKE ON THE NORTHUMBRIAN AS A THREE

The FULL or HALF ULTRA TRI DISTANCE as a team of three – cheer your team mates on before you take on your leg of the Northumbrian! The Northumbrian is set in and around the beautiful Kielder Water, whose roads and trails known for their undulating nature – this race will not be easy on the legs! Please ensure you and your team mates are confident in your ability to complete the course before entering. Choose your relay leg carefully!

Transition area will be in the large lower car-park at Waterside

LIMITED TO 50 TEAMS

All teams must attend registration and the event briefing

All team members are able to cross the finish line. Due to the narrow aspect of the course we can only allow this over the last 100m, we will have a waiting area for relay competitors to meet their teammate just before the finish.

  • LEG 1 – SWIM 1.2 MILES OR 2.4: 1 or 2 laps in the breath-taking serenity of the famous Kielder Water, entry and exit via slipway. Wetsuits are mandatory.
  • LEG 2 – BIKE 56 OR 112 MILES: 1 or 2 laps through the stunning valley and a ride over the Border to conquer the challenging, inspiring roads. The majority of the route will be on open roads however there will be some partial closures for safety, the route will be fully marshalled including Moto marshals. Non-drafting, bikes must comply with British Triathlon rules.
  • LEG 3 – RUN 13.1 OR 26.2 MILES:1 lap along the infamous Forest trails that host the testing Kielder Marathon (half marathon route for the half distance, full marathon route for the full distance)
  • TOTAL DISTANCE: 70.3 OR 140.6 MILES
  • TOTA ELEVATION: 1803M / 3606M
  • START TIME: 6:15AM
  • CUT OFF TIME: 9 HOURS / 17 HOURS
  • REGISTRATION: Sat 28th June

facilities

Toilets will be provided at the start/finish and at each water station on the route. Secure bag drop marquee will also be available for all runners. First aid will be available at the start/finish. Unfortunately we are unable to provide showers or changing facilities.

There will be refreshments available at Kielder Waterside

support crews

Support crews on the run and bike routes MUST be stationary, however they are allowed to move from point to point. Support crews must not ride or run with competitors due to the nature of the course and medical resources. Your support crew may hand out bottles and food.

Transfers, deferrals & Refunds

  • Transfer: You can transfer your entry to someone else up until 6 weeks before the race date for an admin fee. You can do this by logging into your entry through your confirmation email.
  • Refund: Unfortunately as per our terms and conditions, entries can’t be refunded however we can offer a free medical deferral up to 4 weeks before the event if a medical note is produced.
  • Changes: You can change details of your entry by logging in through your confirmation email up until 4 weeks before the event.

BTF Race Pass

To participate in this event, you are required to become a member of British Triathlon and hold a race licence. You must either become a Core or Ultimate annual member here www.britishtriathlon.org/join or purchase a single use Race Pass for your race here

purchase a single use Race Pass for your race here

Event Video

Reviews

Verified Purchase

A 'verified' purchase review means that we've verified that the person writing the review purchased their entry to this race on findarace.com.

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5.0

2 reviews
Pieter

·7 months ago

Was fortunate enough to participate in the first ever Northumbrian, fantastic location, fantastic course, brilliantly organised. Bucket list item for sure!
GS
Gareth

·2 years ago

Awesome event, really tough but amazing place for an event, well organised and friendly crew. The support really helped

Location

NE48 1BT, Hexham, United Kingdom

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The Northumbrian Full & Half Iron-Distance Triathlon

29 Jun 2025

£195.00 - £330.00

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