Events and medals Take part in limited-time events together with everyone on Rebase. Every week you hit your goal, in any of your challenges, counts toward a medal: Bronze, Silver, Gold or Diamond. The medals you earn show up on your profile. Challenge covers Give your challenge a cover. Pick one from the library or use your own photo. When you invite friends, the link shows the cover, the challenge name and who's already in. Simpler challenge setup Creating a challenge now takes a few short steps. Weeks run Monday to Sunday, and if you start mid-week, the days before the first Monday are a warm-up. Plus smaller fixes and improvements.