My friend is a keen Parkrunner. He likes to keep track of his PBs and I wanted to give him something to provide extra motivation to keep reaching for faster times. So I thought: why not make a chart? I drew a poster inspired by topography and then designed a unique graphic for each park, with space to fill in race times and dates. I stuck a magnetic sheet behind the poster and a magnet on the back of each graphic, giving the flexibility to move the magnets as needed (and order them by parks, or date, or by PB).