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IRONMAN 70.3 Westfriesland: 2027 race guide

Hoorn, Netherlands20 June 2027

Start trainingOfficial entry & details

IRONMAN 70.3 Westfriesland is June 20, 2027. Check the organizer date, course-specific preparation and practical race-day planning.

Updated Oct 17, 2026 · Verified Oct 14, 2026

The race at a glance

Route and elevation

Official swim classification: Lake. Official bike profile: Flat. Official run profile: Flat. Use the current course maps and athlete guide for final elevation, aid, transition and cutoff details.

Race guide

Date and race-format check

The official registration page confirms June 20, 2027 for IRONMAN 70.3 Westfriesland. Check the exact entry category and its included services: a special package listing does not establish general-entry availability. Use the edition’s athlete guide for transition access, bike check-in and start procedures before finalizing the travel schedule.

Confirmed race date

IRONMAN 70.3 Westfriesland: June 20, 2027. Verified on October 14, 2026 against the official event information.

Race overview

IRONMAN 70.3 Westfriesland is listed by the organiser for Hoorn, Netherlands. The currently published event date is 2027-06-20. The event date and broad format were checked on October 14, 2026. Check the official entry page for current availability and eligibility.

The official event page describes the swim as Lake, the bike as Flat, and the run as Flat. These are useful planning signals, not a substitute for the current course map or athlete guide.

The organiser remains the reference for entry eligibility, exact start time, division or age-group rules, equipment, course changes, cutoffs and cancellation policies. Recheck the official event page before paying for travel and again when the current athlete guide is released.

Final official-source checklist

Within race week, reopen the official event page and confirm date, venue, start procedure, entry status, course, rules, equipment, cutoffs and emergency guidance. Keep the current athlete guide available offline if the organiser provides one.

Further reading

Training plan and timing

Compare the start dates below, then choose a plan that fits your current training and available time.

32 weeks and 5 days remain until the listed 20 June 2027 race day.

  1. Start20 December 2026
  2. Build26 weeks
  3. Taper2 weeks
  4. Race day20 June 2027

26-week plan option

Compare 3 other plan lengths
  • 16-week plan
    Start by 28 February 2027
  • 20-week plan
    Start by 31 January 2027
  • 24-week plan
    Start by 3 January 2027
View 26-week plansView 16-week plansView 20-week plansView 24-week plans

Need a printable plan? Download the IRONMAN 70.3 training plan PDF.

Race-day strategy

  • Keep bike effort controlled early, especially into wind or on climbs.
  • Use the bike to execute the fueling plan you rehearsed.
Open race calculators and tools
Loading 70.3 fueling planner…
IRONMAN time and split calculatorIRONMAN 70.3 fueling plannerTraining start-date calculatorIRONMAN 70.3 training plan PDF

Race-week logistics

Use the current organiser guide for schedules, transport, cutoffs, equipment, and other time-sensitive instructions.

Current details to confirm: start schedule, expo, bib pickup, transport, cutoffs, equipment rules, entry price.

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FAQs

When is this race?

The organizer lists June 20, 2027 for this event. Recheck the final participant guide for the represented distance’s start and travel details.

Where is this race?

The official event page lists IRONMAN 70.3 Westfriesland in Hoorn, Netherlands. Confirm the venue address and access instructions on the current event page.

How long should I train for this race?

Compare the 16, 20, 24, 26 week plans with your current consistency, weakest discipline or station, recovery and available runway. Do not compress missed weeks if a standard start date has passed.

What should I verify before entering this race?

Check the current date, entry status, eligibility, course or venue layout, equipment, cutoffs, cancellation terms and travel demands on the official organiser page.

Is the course information for this race final?

The swim, bike and run labels come from the current official directory. Use the event's latest course maps and athlete guide for final route, elevation, cutoff and transition decisions.

Can a calculator predict my race result?

No. Calculators organize assumptions. Weather, terrain, venue flow, transitions, nutrition, health, crowding and late-race fatigue can change the result.

What should I check for this edition?

The official registration page confirms June 20, 2027 for IRONMAN 70.3 Westfriesland. Check the exact entry category and its included services: a special package listing does not establish general-entry availability. Use the edition’s athlete guide for transition access, bike check-in and start procedures before finalizing the travel schedule.

Keep going

IRONMAN 70.3 Race Calendar and Athlete Guides

Browse 101 official-source IRONMAN 70.3 events by date and place, then open athlete guides with training timelines, tools and verification notes.

Open guide

IRONMAN 70.3 Training Plans: 16–26 Weeks

Choose a 16–26 week IRONMAN 70.3 plan using swim, bike, run, brick, fueling, recovery and schedule readiness checks.

Open guide

Long-course triathlon research: pacing, fueling and readiness

Evidence-informed protocol: Long-course triathlon research: pacing, fueling and readiness. Practical steps, who it helps, and what to watch out for.

Open guide

Sources