How Far, How Long? Quiz See if your knowledge of your favorite sports measures up. by Beth RowenWant to learn more about stadiums? Visit Major League Ballparks! Question 1 (out of 10): How far apart are the bases in professional baseball? 60 feet 80 feet 90 feet 75 feet More Quizzes from Factmonster: Try another Sports Quiz ! Quiz Archive FEN Learning is part of Sandbox Networks, a millennial learning company, reaching hundreds of millions of people across the globe.