Is ballet a sport, what do you think?

i am a true ballerina and i know many of yuo might say the diefintion of a sport is it involves competion and there are very much ballet competions and we almost work harder than every sport expcet prob ice skating because thats pretty hard core. any let me know! p.s. i have been doing ballet since i was 3 i am 15 i know wat it is like