Is there any on-site ticket upgrade?
Ticket holders may upgrade their tickets at the Ticket Upgrade Booth for an additional cost. All available seats are released to the Upgrade Booth the day of the session. Located inside the East Gate adjacent to the USTA Billie Jean King National Tennis Center Box Office, the Upgrade Booth is open from 12 p.m.-8 p.m. daily. You may also visit the Ticket Upgrade Booth to purchase tickets for the remaining sessions of the 2008 US Open. Upgrades are subject to availability.