6m Es?

DK8NE (755km) was spotted on 6m WSPR at 1109z. He was incredibly strong (+9 dB S/N) so I wonder if this was Es?  As I have had to use the PC for something else, I am not on 6m WSPR presently, but hope to return to the band later. There were lots of Germans on 10m WSPR earlier too.