On March 15th, registered people over the age of 15, get one swing against a pitching machine and if you hit a home run, you win season tickets.
The major rules are that you get 2 pitches from the machine, no more. So swing away.
You must use a bat provided by the Padres.
If you played DI college baseball, you can't participate.
If you played professional ball (affiliated or not), you can't participate.
There are other small rules, but those are the big ones.
Pretty cool contest.