The Marathon.
The long-distance cross-country skiing.
tennis burns off the most calories
tongue
Zoomba.
Arena football.
160
taking out the trash
Rowing
100 metres
I would say swimming.
Hip hop or pole dancing. Many articles say Zumba is most effective in burning calories. I know yoga isn't a dance but it burns almost as many calories as Zumba which worked great for me.
It is speed skating.The skater has to go as fast as they can .It is unknown which burns the most calories.