The day started with the westerly breeze blowing in at 20 knots, with a swift current ebbing at 2.2 knots. There was a steep chop. At the start of Race Nine, Oracle Team USA, led by Australian skipper, James Spithill, clobbered Emirates Team New Zealand's skipper, Dean Barker. The Kiwis were three lengths behind at the first turning mark. Downwind the boats appeared to be even in speed. At the leeward gate, the boats split to opposite sides of the course. OTUSA's superstar tactician, Ben Ainslie, found the best current and wind to stretch their lead. At one point ETNZ was foiling upwind at 32 knots. They were able to do this by sailing a slightly lower course. But they gave away too much windward distance to gain any ground on the American team. The wind behaved and stayed just below the 20.8-knot wind limit. When Spithill and crew crossed the finish line, team owner Larry Ellison raised both arms in triumph. I think he was just as happy for this team as he was that his vision of the America's Cup was working.