Is 50k US Championship course certified?

There are two USATF certified 50 km courses in Caumsett Park, Lloyd Neck, Long Island, New York. They are both record-eligible.

One is identified as NY06001AM. This was measured first. It has, in addition to a big loop, a diversion to a small loop. One complete loop is 4.24 km.

The second is identified as NY06006JG. This one was measured later as an auxiliary course. This course eliminates the additional small loop. Loop length is 3.78 km.

Maps of both courses may be found using the USATF course search engine at:

http://www.usatf.org/events/courses/search/

I have no knowledge of which course, if either, was used for the events of interest. This information would have to come from the race organizers.

Thanks Pete for the quick answer.
I assume that they ran one of the certified courses and will include the results in the rankings.
By the way, this years winning time of 2:55h is quite good. In last years 50k world ranking this would have been rank 7.

I have just validated NY06006JG as 50.0111 km. If the race director agrees to upgrade it to 50.05 km, a new certificate will be issued and it will be prevalidated for any future records.