This is how you claim the top cap that you earned for completing 50 miles in 2019 at Freetown 50 but forgot to grab it before heading home. RHR will figure out a better way for this in the future if someone has to shove it in your hand as you cross the finish.
Dammit, that's probably the answer.
You can't buy these and we check the 2019 results before shipping out any order. All you're paying is postage.