Very dangerous.
One commentator thinks it’s from a 1988 competition in Russia.
Click PLAY or watch the igorgymn1 posted video on YouTube.
Certainly this skill will be done again, soon.
Any athlete with a very strong double layout Arabian could possibly do triple tuck. I’d rather not see this skill on the competition floor, however.
Dave Carter linked to this clip. He linked to a Quadruple Twist on Floor, as well.
Gymnastics Coaching.com 