Depends on how many tickets your are betting on. Probability decreases with more amount of tickets and vice versa.
Here is a site https://socially.top , where you can bet with just 10 tickets.
So Imagine the probability of winning.
Free money on signup , and check your luck.

Yes,with just 10 or 20 participants the chance of wining is high .
You can try this https://socially.top for free money , to check your luck with just 10 tickets.

Please give more info on this project