Endurance athletes can now see where they’ll be hurting the most as they haul up mountains, run through canyons, or power through the water with the new app, Compete Hub. Maps are huge for triathletes on Compete Hub, so this week they just added the high density zooms, hill shades, and contours of Mapbox Outdoors.

Challenge Walchsee-Kaiserwinkl, home to one of Europe’s most beautiful triathlon race courses

Compete Hub is also leveraging the modularity of the Mapbox.js API, which lets them add in additional functionality, like a plugin to view the map full-screen and scrub through elevation profiles with contextual markers.

If you’re an athlete, sign up with Compete Hub and start planning your races alongside some beautiful maps.