How far apart were the Open Men and Masters Men races at Club Nats, and in which order were they run? It appears at least one gentleman ran both...
From Open results:
173 2033 Ulrich Steidl M 41 1/4 M4044 Seattle Running Club WA 34:47 5:36
From Masters results:
3 1388 Ulrich Steidl M 41 3/85 M4044 Seattle Running Club Seattle WA 34:29 5:33
I imagine this was quite the impressive workout, especially considering the conditions.