This amazing app was created by digital agency Goald (www.goald.co.za) who approached me to come up with a strong creative direction for the interface design. The app allows runners to track their progress in a marathon as well as their friends progress. Users can also post messages to friends and track their own (and others) best times, goals and previous running history.
The facebook API provides limitation in terms of the size of the images it allows you to have for the profile pics. This was probably a good problem to have as it allowed for a lot of clean white space and made the focus on a simply, clean, flat design.