"When the boat was tipping, it was heart-stopping," says Ms Easterbrook. "Chris was holding on like grim-death, but he did get dunked under the water."
McAsey is married to Ms Easterbrook's daughter, Suzy. They have two daughters, Brooke, 5, and Billie, 2, who are with the couple in San Francisco at the moment.
Ms Easterbrook has just returned from her trip from the US with McAsey's mother, and will be watching the races from her Glenbervie home.
"I'll be just as nervous as if I were over there. I know Suzy gets nervous."
The team has a "surprising" number of supporters over there, she said. "It's amazing how many Kiwis are there."
And she thinks Team New Zealand's chances are good. "Oracle is going to be the main challenge.
"Let's face it - it's not going to be a walk in the park. Home advantage makes a big difference," she said.
Another disadvantage is the fact the Oracle team have two crews to substitute from, whereas Team New Zealand have a squad of 15, with 11 on the boat at any one time.
That means if any of the New Zealand crew are injured, the team are put under more pressure than Oracle would be, she said.
The weather could also be a major influence. "The tides, the current and the wind make a huge difference."
To bring back the Cup would be "really exciting and a reward for all their hard work for the last 10 years."
And to lose it would be "devastating for them". "But they are professionals, and professionals know that when you win, you win, and when you lose, you try again."
"But no - they'll win," she said.