The course
21.1 km, 10 m of climb.
An out-and-back half marathon on Dublin's north-side seafront, organised by Bear Races. It starts and finishes at EastPoint Business Park in Clontarf, runs along the Clontarf Promenade, crosses to Bull Island and returns the same way, with views across Dublin Bay to Howth Head. The course is flat (48 m of climb in all, according to the organiser) on road and promenade paths, certified and chip timed. Runners start in six waves from 10:00, with pacers from 1:30 to 2:10 and a 3.5-hour cut-off. Route map and elevation profile below.
A flat course: 7 m between the lowest and highest point.
Friends and family following you? The spectator finder shows them when you’ll pass each point.
Running Clontarf Half Marathon (Autumn) next time?
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How JRNY worksRace details here are shared to the best of our knowledge, but they can change. Always check the official race site before race day.