Can you bring bottled water into stadium

So long as it's sealed

Yes unopened

Yep not opened no problem

Yes but can't be open.

Unopened yes

Yes, as long as the bottle has not been opened. I've brought in others such as vitamin water or frozen and you might get lucky and don't get checked. If they stop you, just go another line and try to go thru again.

1 liter per person.

Yes