There have been 300 MLB postseason series played from the first World Series in 1903 through this year's National League Division Series and American League Division Series. Only eight of those (2.7 percent) resulted in the home team winning every game.
A ninth could be added if the trend of the home club winning in this year's AL Championship Series between the Astros and Yankees continues.
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Houston won Games 1 and 2 of the ALCS presented by Camping World at Minute Maid Park before New York roared back to take all three games played at Yankee Stadium, including its 5-0 victory in Wednesday's Game 5.
Should the Astros win both games in Houston to close out the series and advance to the World Series, it would mark the first time since the 2011 NLDS between the D-backs and Brewers that the home team won each game of a postseason series. Milwaukee won that series in five. Of the eight series in which the home team won each time, four were five-game series and four went seven.
Fans of both the Astros and Yankees are familiar with this kind of series. Prior to 2011, it had been seven years since the home team had won every game of a postseason series, with the Cardinals defeating the Astros in seven games during the '04 NLCS. Three years earlier, the D-backs beat the Yanks in the '01 World Series on a Luis Gonzalez walk-off single against Mariano Rivera in Arizona, another example of the home team winning every game.
The other series in baseball history in which the home team won each game were:
1995 ALDS
The Mariners overcame the Yankees in five, famously winning on Edgar Martinez's walk-off double to score Ken Griffey Jr.
1991 World Series
The Twins beat the Braves in seven on Gene Larkin's 10th-inning walk-off single.
1987 World Series
The Twins defeated the Cards in the first seven-game series in which the home team won every game.
1984 NLCS
The Padres edged the Cubs back when the LCS was still just five games (it changed to seven in 1985).
1982 ALCS
The Brewers topped the Angels in five games.
In this year's ALCS, the home-field advantage has not been lost on the Astros as they head back home for Game 6.
"It was crazy," Houston shortstop Carlos Correa said of the Yankee Stadium crowd. "I never heard anything as loud as it was [Tuesday] when Gary [Sanchez] hit that double [in Game 4]. Loudest I've ever been part of."
"It will be great [to get back home]. There weren't a lot rooting for us here," Astros manager A.J. Hinch said after Wednesday's loss. "I think getting home will be good for us. We'll have an off-day tomorrow, and then get to play in front of our home crowd. Every home team has won in this series. If that trend continues, we'll be in pretty good shape."
Yanks manager Joe Girardi thought back to the 1996 World Series -- when he was a catcher for New York's first World Series championship run in 18 years -- when asked about the home crowd during this series.

"I think [the players] feed off of it a lot," Girardi said. "And I think it definitely helps them. I've heard our players talk about it. It's electric. It's something that they haven't seen. And you get it during the season sometimes, certain teams that we face. But this is up a whole other notch. It's as good an atmosphere as I remember at this new ballpark."
The Yankees benefited from their electric home crowd to come back from a 2-0 series deficit, but they'll have to buck the trend of the home team winning in order to reach the World Series for the first time since 2009.
"The atmosphere was similar to what it was when we were at home," Astros third baseman Alex Bregman said of Yankee Stadium. "I feel like we have the same home-field advantage."