Round one of the U.S. Open resumed Friday morning due to two weather delays on Thursday.
Round 2 tee times were delayed several hours.
The U.S. Open is being played at Merion Golf Club in Ardmore for the first time in 32 years.
Golfers could be seen warming up at the driving range and practice green shortly before 7 a.m. , before heading to their tee times.
Crowds were light Friday morning with a few lingering showers and a little bit of a chill in the air, but the forecast calls for drier air.
Besides watching golf, spectators can check out a number of sponsored tents with various activities.
One of those is the Chevron STEM Zone where you can learn the physics of golf.
Watch the video to see Melanie learn about the Stimpmeter Factor of a green.