I think Wicked is one of the few tours that has an in-person lottery required by the producers. And that it's always the "Two and one-half hours prior to each performance, people who present themselves at the theater will have their names placed in a lottery drum; 30 minutes later, names will be drawn for a limited number of orchestra seats at $25 each, cash only. This lottery is available only in-person at the box office, with a limit of two tickets per person. Lottery participants must have a valid photo ID when submitting their entry form and, if chosen, when purchasing tickets." part.
There may be a digital one or some other form of rush depending on the theater, but I think they have to have the in person lottery.