Spotify is today debuting a new Running Mode for iPhone that’ll match aim to match the perfect playlist with the tempo you’ll need to get you through training runs and races. In a new perk for Premium subscribers on iOS (initially), users will be able to select from 25 running playlists. However, this does require the runner to have some knowledge of their regular running heart rate. Running Mode is available in the Fitness hub Spotify launched in the spring, alongside the Peloton classes that are already available. Right now users in the US, UK, Canada, Ireland, Australia, New Zealand, and Sweden can access the feature.