The SFO Travel Agency located at the International Terminal near gates G91-G105 has luggage storage facilities. The Travel Agency is open everyday from 7 a.m. to 11 p.m., and travelers can store their luggage there for a fee. The fee is based on the size of your luggage, and a minimum one day cost ... expect to pay somewhere between $12-25 per day. This is a huge time and money saver for anyone that had planned on returning to the City at the conclusion of the tournament to retrieve their luggage and then hop back onto BART or a cab to flyout of SFO.
Reservations are not accepted, but we were informed that they have plenty of luggage storage space.
SFO International Terminal