How to Choose a Marathon

Define your primary goal

Different races reward different ambitions. A personal-best attempt needs a fast, flat course and cool weather. A destination race prioritises the city and the trip. A major milestone — like a World Marathon Major — may mean accepting a harder entry process or a tougher course for the badge on your CV.

Compare course data, not just names

Use Marathon Focus to compare elevation gain, typical race-day temperature, altitude, and course layout. Two marathons in the same country can feel completely different: one flat along a river, another hilly through parks and suburbs. Our course profiles guide explains how to read those numbers.

Filter by what matters to you

On the marathon database, filter by country, month, elevation, or World Marathon Majors. Sort by participants to find big atmospheres, or by next race date if your calendar is fixed. Flat-course hunters can set elevation to Flat and cross-check with the flat vs hilly guide.

Weigh weather realistically

A fast flat course in humid heat can still produce a slow day. Read typical min/max temperatures and humidity on each race page, then see our marathon weather guide for how conditions affect pacing and hydration.

Check the entry path early

Open registration, lotteries, qualifying standards, and charity places all change your timeline. Major races often need planning a year or more ahead. Read marathon entry explained and the FAQs on your shortlisted races before booking non-refundable travel.

First marathon or tenth?

If this is your debut, start with how to choose your first marathon — it focuses on finish-line confidence over prestige.