Slingsby won Saturday's first race and Outteridge won the third. They will not compete in Sunday's two fleet races, which will precede their showdown for one of the biggest paydays in sailing history.
Slingsby, an Olympic gold medalist and former America's Cup champion, padded his season lead to six points over fellow Australian Outteridge, 225-219. On the off chance the match race can't be sailed, the season championship would be decided on points. Outteridge is an Olympic gold and silver medalist, plus an America's Cup veteran.
Team China, skippered by New Zealander Phil Robertson, won its first fleet race this season and is tied with Dylan Fletcher's British crew for third place going into the final day of racing.