The Astros made history in Game 4 of the World Series in Wednesday night’s 5–0 victory, tossing the first combined no-hitter in World Series history. As far as no-hitters in the Fall Classic overall, the feat is incredibly rare.
In total, there have now been only two no-hitters ever in the World Series and three all-time in the postseason. The first came in Game 5 of the 1956 World Series, when Don Larsen threw a perfect game against the Dodgers at Yankee Stadium. Larsen needed just 97 pitches to accomplish his perfecto—the same number of tosses Houston starter Cristian Javier threw on Wednesday to get through six innings.