MADRID — Canada beat the United States in the Davis Cup for the first time on Tuesday, defeating the Americans 2-0 on the second day of the revamped team competition to end a run of 15 straight losses.

Vasek Pospisil edged Reilly Opelka 7-6 (5), 7-6 (7) and Denis Shapovalov defeated Taylor Fritz 7-6 (6), 6-3 to give the Canadians an insurmountable lead in Group F of the inaugural Davis Cup Finals.

It was Canada’s first win in 16 meetings with the United States in the 119-year-old competition, although the teams had not played since 1965. The Americans had lost only three matches in total against their neighbors in the previous 15 meetings.

“It’s extremely disappointing because I felt like I definitely could have won, and it would have been big for the team,” Fritz said. “Unfortunately, I didn’t come up with the right shots at the right times sometimes. Ultimately, that’s why I lost.”

The result leaves the United States needing to beat Italy on Wednesday to have a chance of advancing to the knockout stage. Italy lost to Canada 2-1 in the opening group tie on Monday.

“This is the toughest group, I think, so there is no easy match.” U.S. team captain Mardy Fish said. “But you never know. We are going to go out there tomorrow and try to win the first one and try to put ourselves in position to do that.”

In the new Davis Cup format, teams play only two singles and a doubles match in each tie, with the group winners advancing along with the two best second-place finishers in the six groups.

The doubles match was not played.

“They’ve got a great team,” Fish said. “They’re going to be around for a long time.