One USA spot on 10m WSPR yesterday

Looking back at my logs I see that WY1R (5504km) spotted my 10m 500mW WSPR yesterday at 1412z. This was the only USA spot on the band. I this was F2 although  there is a possibility it was multi-hop Es. F2 is more probable. Conditions must have been very marginal with just a fleeting opportunity of my little beacon being briefly copied.