How we work

Runners.hr is a calendar of running races in Croatia that checks its sources by itself every day. This page explains where the data comes from, how fresh it is and what we never do with it.

Right now the calendar has 84 races, alongside 3 run clubs and 5 running schools. Last check of all sources: 14/11/2026, 05:00 (Croatian time).

Where the data comes from

• Registration platforms: Tracey, utrka.com, Finisherka, prijave.run, running.hr, Štoperica and ProTime (Croatian races only). From them we take the date, place, distances, registration deadline and status, entry fee and the total number of registered runners.
• Event and organiser pages that publish structured race data (schema.org), including public event pages on Race Result. We follow Webscorer only for organisers on our list.
• The Croatian Athletics Federation (HAS) calendar: races listed there get a "HAS" label. That calendar never changes the data from the platforms; it only tells us about races we do not have yet.
• You: races you send us through Submit a race and corrections from organisers. An editor reviews every submission before it is published.

How often

• Once a day, at 5:00 Croatian time, we check every source. Each race shows when it was last checked.
• We open sources one at a time with a pause between requests, follow their rules for robots (robots.txt) and identify ourselves as RunnersHrBot.
• Finished races get a link to the results and the final number of participants once the source publishes them.

When sources disagree

• The same race is often on several platforms. The leading source is the one where the race first appeared in our calendar; the others only fill in what is missing, so the details do not flip from day to day.
• A detail corrected by hand by an editor stays locked. If a source later publishes a different value, we review the difference first.
• Unusual changes, such as a sudden drop in registered runners, and sources that stop responding for several days are reviewed before anything is published.

What we never do

• We never publish the names of registered runners, only the total (and the split between women and men when the source has it).
• We do not charge for registration and we do not sell race bibs. Registration and the official race rules are always with the organiser.
• We do not copy organisers' race rules: we show the key details and link to the official page.
• We do not track visitors with cookies without consent. More in our privacy policy.

Run clubs and running schools

Clubs and schools enter their own details through a form, and we review them before publishing. Every six months we ask them whether the details are still correct; each club and school page shows when they last confirmed them.

Corrections

• Every race page has a Suggest a correction button, and so do club and school pages.
• You can also write to info@runners.hr. Organisers can also ask us to remove a race.

More about us: About us. Calendar: all races in Croatia.