When you posted your post up, I assumed you meant bike races at first. I have two bike tours coming up here in NYC; a Five Boro Bike tour in the first week of May and a Century Ride in August. I would be shocked and stunned if the Five Boro Bike tour still goes down at this point since there's way too many points of contact where folks can potentially spread germs and such on the course. For your foot races, are there stages were food/drinks are served by volunteers? This like that make me very very leery.

I hope this Covid-19 nonsense will alleviate within the next three or so months, but given the limited testing in this country so far, I dunno. I suppose time will tell.