Toe-on Tkatchev 1/2
Toe-on Tkatchev to mixed grip
Beth Tweddle (GBR)
A gymnast who was a couple quads ahead of her time, Beth Tweddle’s routine composition predicted and ushered in what would become the norm and the most valuable method of constructing an uneven bars routine—release to release to release to release to release. (To release.) As is only befitting a bars legend, Tweddle has an eponymous skill on bars, the toe Tkatchev with 1/2 turn.
Interestingly, though Tkatchevs with 1/2 turn had been part of the skill repertoire in gymnastics for many years, this was the first instance of a gymnast getting one named after herself and getting it entered into the code as a true Tkatchev with a 1/2 turn, rather than just a Tkatchev to catch in mixed grip. Although when nearly everyone else tries, the distinction is minimal-to-none.
For name clarification, refer to: Shaposhatchev Dictionary