Grade: 2
Ran full tilt into a branch, and my thigh quickly swelled up. Only superficial damage I think, but couldn't run properly the next day.
Interesting to see the gulf in class between the world's elite and me. Martin Johansson runs full tilt into a branch and gets impaled to a depth of 12cm. I do the same and barely scratch the surface. Hopefully after 1-2 months of proper speed training I will be able to achieve at least a couple of cms of impalement.