Regatta director Iain Murray said: "We are watching Sunday and are quite concerned - but the wind limits are the wind limits and the currents are what they are. The planets are not wonderfully aligned right at this moment but we need to have a careful look at it and consider all parties."
Oracle will have its two boats out on the course practising against each other before the race - ironically, the teams can decide to train in whatever wind speed they consider safe but the race rules are now set in stone - before giving up the course to Team NZ.
The race will be held over the same five-leg course that Luna Rossa sailed on Wednesday, finishing three minutes outside the maximum allowable time (but being permitted to keep the point for winning the "race").
If no one is counting chickens ahead of the Louis Vuitton finals and the America's Cup match, there is plenty of Counting Crows. The group most famous for their song Mr Jones play a concert ( a double header with The Wallflowers, fronted by Jakob Dylan, son of Bob, who are best known for their song One Headlight) at the America's Cup Park tonight to a sold-out audience.
The gigs organised to supplement the racing have been successful so far and other acts include the San Francisco Symphony Orchestra, Weezer, 311, Steely Dan, Cheech & Chong, the Jonas Brothers, Sublime With Rome, Fall Out Boys and Lumineer.