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2027 race calendar: marathons, IRONMAN, 70.3 and HYROX

Compare 333 confirmed 2027 race dates by month: marathons, IRONMAN, IRONMAN 70.3 and HYROX, with official links and training-calendar guidance.

Updated Oct 13, 2026

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Pick your 2027 start line

Compare 333 races with organizer-confirmed 2027 dates: 169 marathons, 30 IRONMAN races, 84 IRONMAN 70.3 races and 50 HYROX events. Sources checked October 13, 2026. This is the announced schedule verified so far, not a claim that every 2027 race has announced its date.

IRONMAN 70.3 is the half-distance triathlon category often called Half Ironman. A full IRONMAN includes a 3.8 km swim, 180 km bike and 42.2 km run; 70.3 is 1.9 km, 90 km and 21.1 km. HYROX combines running with workout stations. Marathon entries here refer to the full-distance race, not its expo or a companion half marathon.

How to use the calendar

Choose a month, then compare the sport and location. Each row links to the organizer; existing 26weeks guides add training and preparation context. A date range is an event span: check the day and wave for your distance or division. London is officially April 24–25; your assigned day matters when counting back to training.

Dates do not establish that entries are open. Ballots, qualifying standards, sold-out races and championship qualification need a separate check. Use refundable travel arrangements until the organizer confirms the details you need.

Browse all race guides: Marathons, IRONMAN, IRONMAN 70.3, HYROX.

January 2027

February 2027

March 2027

April 2027

May 2027

June 2027

July 2027

August 2027

September 2027

October 2027

November 2027

No exact dates were verified for this month in this source check. Check the organizer directories for later announcements.

December 2027

No exact dates were verified for this month in this source check. Check the organizer directories for later announcements.

Turn a race date into a workable training calendar

Use the training start-date calculator to count back from your actual race day. For example, a 16-week block before April 25, 2027 begins January 3; a 24-week block before September 26 begins April 11. These are calendar calculations, not a recommendation that either block suits every athlete.

Choose the runway from current training consistency, the demands of the event and the time you can sustain. If a start date has already passed, choose a later event or revise the goal instead of compressing the missed weeks. For a multi-day event, use your assigned race day rather than the first date in the table.

Compare the marathon training hub, IRONMAN training hub, IRONMAN 70.3 training hub and HYROX training hub. Start training with 26weeks to build toward your finish line with your current schedule and recovery in mind.

Dates still to be confirmed

An absent race is not a cancellation notice. Some organizers have published only their upcoming 2026 edition; some sources could not be checked reliably, and some 2027 weekends do not yet identify the full-distance race day. Those dates are excluded from this confirmed calendar. Existing race guides retain their source and clearly distinguish pending dates from confirmed ones.

The Hogeye organizer says 2026 was its final full marathon. Its April 17, 2027 half marathon and relay are therefore not included as a full marathon here. The Berlin event is now the GENERALI BERLIN-MARATHON; its existing guide URL is retained for continuity.

Sources and changes

IRONMAN and IRONMAN 70.3 dates come from the official IRONMAN race directory. HYROX dates come from the official HYROX race finder. Marathon dates were matched individually to the named race and full-distance event on organizer pages. Every event row links to its official website. Recheck the source before entry, travel and race week because schedules can change.

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Checklist

Check your choice

Before committing to a race

  • • Verify the exact event and full-distance category.
  • • Check the race day assigned to your distance or division.
  • • Confirm entry availability, ballot or qualifying requirements.
  • • Read cancellation and transfer terms.
  • • Review the current course and cutoff.
  • • Count back from your race day to a realistic training start.
  • • Check travel, visa and race-week logistics.
  • • Recheck the official organizer before paying or booking.

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FAQs

Are all 2027 race dates announced?

No. This calendar includes only dates verified against organizer sources. Missing races may be pending or could not be verified; absence is not a cancellation notice.

Is IRONMAN 70.3 the same as Half Ironman?

IRONMAN 70.3 is the branded half-distance triathlon: a 1.9 km swim, 90 km bike and 21.1 km run. It is listed separately from full IRONMAN races.

Does a calendar listing mean registration is open?

No. Check the official event website for entry availability, ballots, qualifying rules, prices and your assigned race day.

Keep going

Marathon Races (Directory + Athlete Guides)

Find marathon dates, locations, course details, official sources, and training guidance in one directory.

Open guide

IRONMAN Race Calendar and Athlete Guides

Browse 36 official-source IRONMAN events by date and place, then open athlete guides with training timelines, tools and verification notes.

Open guide

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

Sources