Women play in Wightman Cup tennis match in New York City

The video covers a tennis match featuring Helen Jacobs, a national champion from the United States, against Miss Dorothy Round of Great Britain. Due to illness, Miss Wells watches from the sidelines. The match highlights include a series of backhand exchanges, culminating in a victory for Helen Jacobs, helping the United States retain the cup.

What was the outcome of the match for Helen Jacobs?

What does the text imply about the competition between the United States and Great Britain?