what's the name of this trick? and if somebody has trick tutorial like this?

Yo-Yo Tricks
1

see the first slack ?

i see many competitors did it .Like christopher chia and takeshi matsuura at world yoyo 1a contest.

2

I find it funny that you asked for a tutorial for a trick that you just posted a tutorial for. haha

You just whip the string as if you’re doing a Wrist Whip, then change the direction of the loop of slack using your TH, into a Jade Whip motion.