Is it actually possible to win the Lucky Number show in GSC?

Question

If it is and I just happen to win I’m playing the lottery.

and no I do not gamble

Answer 1

Yes you can win it.

Source

Answer 2

You actually can.
1st prize gets a Master Ball, 2nd prize gets an Exp. Share and 3rd prize gets a PP UP.
I've never won any of them, but I've seen some Youtubers who have and that's what happens. For real.