A yo-yo test is the Indian cricket team’s fitness benchmark test. What is it ? and why the people are finding it so difficult to understand. Yuvraj Singh, Suresh Raina, Mohammad Shami, Ambati Rayudu, Sanju Samson all of them flunked this Test, though Raina has cleared it now and made a comeback into the Indian team for the England ODIs. Teams have different speed levels as qualifying marks. India have set 16:1 as the qualifying speed level, which means it is mandatory for their players to finish the first shuttle of speed level 16, which in terms of accumulated distance is 1120 metres. Pakistan's minimum level is now 17:4; West Indies are at 19, and New Zealand probably have the highest level 20:1.