When Natalia Yurchenko brought Yurchenko vaulting to the 1982 world cup and got the concept named after herself, the layout was her first vault. So technically, this vault is Yurchenko patient zero.
While not the simplest possible Yurchenko vault, this is the simplest Yurchenko we still regularly see in elite competition. And boy do we see it. For those weaker vaulters on the international stage, those who have not yet graduated to the full or are just trying to put out a vault for their team to count and then move on to their good events, this is the vault of choice. We’ll typically see a couple dozen of them at a given world championship, and several as a second vault at each world cup. For the higher-level vaulters, this is a timer in warmups.