Find the best calendar of popular races, marathons, half marathons, and 10K events. Dates, registrations, and all the details for your big challenge, right here.

The Irish event offers distances from 5K to ultramarathon. Here are the published prices and details for August.

Sydney's next edition uses a ballot: key dates, entry fees and options for runners travelling from Spain.

Four distances and Sonoma vineyard scenery await in August, with key race-day logistics still to be confirmed.

The 24th edition is scheduled for August 2027 in rural Palencia, with free entry and a distinctive countryside course.

Two distances, entry from €16 and several details to clarify before swimming in Segovia.

The anniversary weekend features several distances, a demanding course and entry fees that need a closer look.

Two days of racing on the Queensland coast, featuring a four-lap marathon and distances for different ages.

Vermont hosts five race formats, with a marathon shaped by rolling hills, rural roads and historic covered bridges.

Cairns welcomes five coastal race distances in July 2027, combining a flat course with tropical conditions.

July 10 is the announced date for an event combining a team endurance challenge with a shorter family run.

Two days, five formats and different demands: what is confirmed for Madrid’s upcoming hybrid fitness event.

Five days of Pyrenean trail running, six announced distances and a qualification pathway to the 2028 finals.