I recently experienced the fun and charm of running. At the same time, I thought it would be possible to use some simple and flowing design elements to express the running feeling, so I made this design attempt.
I try to make the lines look like they're drawn with a pencil, so that the shape looks more natural.
Then there are graphic applications on some print.
In many sports apps, there are design for achievement badges. I think it might be an interesting design to use this kind of linear graph as a medal.