Yes He has, many times. Starting about 1905 it became customary for the president to throw out the first ball of the new Baseball season. More recently, presidents often attend important football games and other sports events.
it is the us open tennis
Answersoccer soccer soccer
Tour De France
Wimbldon
There are no instances, providing one is safe, to ignore the National Anthem.
official nomination of president and vice president
EuroGames - LGBT sporting event - was created in 1992.
It is the biggest sporting event.
Dick Fosbury created the Fosbury flop. The sporting event is high jump.
The first sporting event to be to publicly broadcasted was a boxing match in 1921.
The longest runing sporting event in the USA is the Kentucky Derby
yum! brands has sponsored every sporting event since 1945