Simple, that sport is boxing. Judges don't reveal scores until the end of a fight if no knock-outs have happened or the fight hasn't been stopped due to excessive injury.
Singing, dancing, attending sporting events as participants and spectators were new forms of entertainment that became popular.
skateboarding its exciting
Just a guess, but it's probably soccer/football, as it is very popular worldwide, so it has many, many spectators!
Yamaha Popular Song Contest ended in 1986.
Yamaha Popular Song Contest was created in 1969.
With 53.5 million participants, it is bowling as the most popular. The most popular outdoor activity is fresh water fishing with 42.1 million participants.