The Tigers posted their ninth straight road win, their longest such streak since they opened 17-0 on the road in 1984.

Max Scherzer won his sixth straight start, matching the longest such streak of his career, set last season.

Those streaks, whose significance is revealed through research on Baseball-Reference.com, went into the books with a 1-0 win that lifted the Tigers to 4-0 on a trip that can be summed up in three words:

Oh that bullpen.

Unlike in the grand-slam losses at Fenway Park in the playoffs last year, that “oh” stands not for exasperation, but for one zero after another on the scoreboard.

In all four of those games on this trip -- three in Baltimore’s Camden Yards, a hitters’ park, and then in the dean of hitters’ parks, Fenway Park -- the Tigers starter has gone exactly six innings.

In all four games, the bullpen has pitched the seventh, eighth and ninth innings.

And in all four games, it has not allowed a run.

In all four games, Joe Nathan has thrown the ninth for the save. He began the ninth inning Friday night by striking out David Ortiz. Nathan has never allowed an earned run or a home run at Fenway Park.

Friday night marked the first time in those four games this week the pen had to guard a one-run lead throughout its three-inning whitewash. The Tigers held that one-run lead the whole nine innings -- Torii Hunter singled in the run off Jon Lester with two out in the first. Protecting a one-run lead for nine innings at Fenway Park against the world champions is a little like driving safely for about three straight hours on a two-lane highway on a rainy night. And there was some rain this night -- a 47-minute delay in the top of the fourth that didn’t deter Scherzer.

Scherzer raised his mark to 6-1 in a park where he’s found it hard to win no matter how well he pitches.

When Carp looped a leadoff single in the seventh, manager Brad Ausmus pulled Scherzer with the lead after he’d thrown 106 pitches. Ausmus wanted to give a second straight day off to Al Alburquerque, who’s been busy lately. He summoned Evan Reed, who balked Carp to second, then hit Xander Bogaerts. First and second, none out.

Boston passed on the bunt, and Jackie Bradley Jr. struck out. Long-time Tigers foe A.J. Pierzynski pinch-hit for right-handed Will Middlebrooks, and Ausmus summoned lefty Ian Krol. Boston manager John Farrell could have countered with right-handed Jonny Gomes.