KE6BID (5295km) was the first USA station to spot my 10m 500mW beacon at 1244z today. Since then, plenty of USA stations have been spotting me on 10m WSPR.
I am also active on 630m (472kHz) WSPR where I run 5mW ERP and I am on 20% TX and 80% RX. Best 472kHz WSPR DX on RX here was F1AFJ (607km). On 472kHz TX my best daylight DX today is G3THQ (8km) and M0ELS (81km).
UPDATE 1742z: Currently KB9AMG (6300km) was the last USA station to spot my 10m 500mW WSPR beacon at 1722z. This may be it for the day, but we'll see.
UPDATE 2154z: KB9AMG was the last spotter on 10m of my 500mW WSPR beacon at 1722z..