Everything about Ironman Westfriesland 70.3 2025; Program, course, photo's and video's (updated)

WESTFRIESLAND – On Sunday, 22 June 2025, the sixth edition of the IRONMAN Westfriesland sports event will take place. IRONMAN Westfriesland is a triathlon, where participants swim, cycle, and run either a half or quarter triathlon. The swimming and running take place in Hoorn, while the cycling route runs through two or more municipalities in Westfriesland.

The entire weekend features three activities and competitions. In addition to two triathlon races on Sunday: IRONMAN 70.3 and IRONMAN 5150, ~~the Kids of Iron races (formerly IRONKIDS) for youth up to age 15 will be held on Saturday~~. The Kids of Iron has been cancelled due to the expected high temperatures (NL). The IRONMAN Westfriesland 70.3 and 5150 were sold out months in advance. The orginsation of IRONMAN Westfriesland has no plans to cancel the race, but do offer extra measurements against the heat.

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#update 2: IRONMAN Westfriesland ready for hot edition: ‘We are fully prepared down to the last detail’ (interview with information for participants and spectators)

This article will be updated with information, photos, and videos until after the IRONMAN Westfriesland event.

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Er is ook een Nederlandstalige versie beschikbaar. Klik hier.

Locations

This year, the start is in the historic harbor of Hoorn. The swim start is at the Oude Doelenkade with a swim exit in Julianapark. The transition zone remains the same as in previous editions and takes place again on the side fields of Hvv Hollandia. The finish and registration tent are at the new city beach (Stadsstrand) of Hoorn. There is plenty of space here for a great finish and a warm welcome for participants with expo area.

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Locations

This year, the start is in the historic harbor of Hoorn. The swim start is this time at the Oude Doelenkade with a swim exit in Julianapark. The transition zone remains the same as previous editions and is again located at the side fields of Hvv Hollandia. The finish line and registration tent are at the new city beach (Stadsstrand) of Hoorn. There is plenty of space here for a nice finish and welcoming of participants, including an expo area.

Participants

For both distances, IM 70.3 and 5150 (the half and quarter triathlon), registration has been closed for months. All available participant spots have been taken.

Program / Schedule

Friday, 20 June 2025
Time	Activity	Location
10 AM – 5 PM	Athlete Registration (70.3 & 5150)	Stadsstrand
10 AM – 5 PM	IRONMAN Expo & Official Merchandise Store	Stadsstrand

Saturday, 21 June 2025
Time	Activity	Location
9 AM – 4 PM	Athlete Registration (70.3 & 5150)	Stadsstrand
9:45 AM – 2 PM	Kids of Iron (Cancelled)	Stadsstrand
9 AM – 5 PM	IRONMAN Expo & Official Merchandise Store	Stadsstrand
10 AM – 5 PM	Transition Open for Mandatory bike & bag check-in (70.3 & 5150)	Julianapark

Sunday, 22 June 2025 – Race Day
Time	Activity	Location
5 AM – 6:50 AM	Transition Open #update 5150 transition area is open till 08.50 AM (After 06.50 enter and exit via entree at Hvv Hollandia building	Julianapark
7:00 AM	IRONMAN PRO Men Race Start	Oude Doelenkade
7:05 AM	IRONMAN PRO Women Race Start	Oude Doelenkade
7:10 AM	Age Group 70.3 Swim Start	Oude Doelenkade
9:15 AM	Age Group 5150 Swim Start	Oude Doelenkade
9:30 AM – 4:30 PM	IRONMAN Merchandise Store	Stadsstrand
12:30 PM – 1 PM	5150 Timing and Results Objections	Stadsstrand – VIP Tent
1:30 PM – 2:30 PM	5150 Awards Ceremony	Stadsstrand
1:30 PM – 5 PM	5150 Transition Open for Mandatory bike & bag checkout*	Julianapark
1:30 PM – 5 PM	70.3 Transition Open for Mandatory bike & bag checkout*	Julianapark
3 PM – 3:30 PM	70.3 Timing and Results Objections	Stadsstrand – VIP Tent
5:30 PM – 7:30 PM	70.3 Awards Ceremony & Slot Allocation	Stadsstrand

Disclaimer: All information is sourced from Ironman.com and affiliated websites. Updated on 17 June 2025; 11:00 AM.

Course 70.3

1900m swimming – 90km cycling – 21km running (total 112.9 km = 70.3 miles)
Start and transition zone
Swim map
Bike map // Video full course recon (YouTube)
Run map
Finish and IM village
IRONMAN Westfriesland 70.3 – The 2025 Athlete Guide (pdf)
IRONMAN Westfriesland 5150 – The 2025 Athlete Guide (pdf)
The 2025 Race Briefing (not confirmed)

Course 5150

1500m swimming – 40km cycling – 10km running (total 51.5 km, hence 51-50)
Start and transition zone
Swim map
Bike map
Run map

Spectators

During the event, IRONMAN Westfriesland welcomes participants from the region, the Netherlands, and even abroad. They warmly invite you to cheer them on with your neighbors or fellow residents. You can decorate the street and/or stand or sit along the course on the day to encourage the participants. Due to the heat, a garden hose offering extra refreshment is especially appreciated by many runners. In the finish area at the Stadsstrand, there is space for spectators to cheer at the finish line. The transition zone is not accessible to the public. Read more here about parking in Hoorn during IRONMAN Westfriesland.

Residents / Road Closures

The cycling courses pass through one or more municipalities in Westfriesland, depending on the distance. Below are the estimated times that participants will pass through during the cycling part, as provided by the organization. This concerns Sunday, 22 June 2025. In some sections of the course, there are designated crossing points.

read the residents’ letter here (includes interactive map)

Media

For this year, we are still scheduling and coordinating with the organization regarding what is possible in terms of photos and videos. These will be added to the article at a later time. Below you can find all photos and videos from previous editions.

Photo overview 2022/2023/2024 – View the overview of Ironman Westfriesland 2023 / 2022

Edition 2025

(interview) IRONMAN Westfriesland ready for hot edition: ‘We are fully prepared down to the last detail’
Visit to IRONMAN Village and Transition Zone; photos, videos, and many participants (Saturday)
Photos Kids of Iron 2025 (formerly Ironkids) (event is cancelled)
Sunday: short livestream swim start IM Westfriesland 70.3 (06:50) and 5150 (09:10) via fb.com/onswestfriesland
(+6000 free race photos of IRONMAN Westfriesland 70.3 and 5150, available from Sunday 6 PM and updated till wednesday, free for private use)

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Everything about Ironman Westfriesland 70.3 2025; Program, course, photo’s and video’s (updated)

Locations

Locations

Participants

Program / Schedule

Course 70.3

Course 5150

Spectators

Links

Residents / Road Closures

Media

Meer over Ironman Westfriesland

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