Apple plans to hold an Apple Watch Activity Challenge to celebrate Global Running Day on Wednesday, June 3. To complete the challenge, Apple Watch owners will be required to record a running workout of at least 5K on Global Running Day. On June 3, the world runs as one. This Global Running Day, record a running workout of at least 5K (3.1 mi) to earn this award. Use the Workout app or any app that records workouts to Health.