Game 4 was the Orioles' longest postseason game and the first time they have played in back-to-back extra-inning games in the same playoff series since Games 1 and 2 of the 1969 American League Championship Series against the Twins.
This is only the third series in postseason history with consecutive 12-plus inning games. The others are the Yankees and Red Sox in the 2004 ALCS and the Mets and Astros in the 1986 National League Championship Series.
For the first time in League Division Series history, all series went the maximum five games.
The Orioles beat the Yankees for the first time in extra innings this year after losing the first three extra-inning contests between the clubs. The O's had a winning streak of 16 games in extra frames before the Yankees won Game 3 in 12 innings. New York is the only team that has beat Baltimore in extra innings this season.
The Yankees had won 10 consecutive extra-inning postseason games at home before the Orioles won Game 4. It was the longest such streak in Major League history.
After 22 games, the Orioles and Yankees have both won 11 games heading into Game 5. New York has outscored Baltimore, 103-101.
Game 4 was the first time in Derek Jeter's postseason career that he didn't start at shortstop. Jeter, who was the designated hitter, had started all 155 of his previous playoff games at short.
Jayson Nix got the start at short, becoming the first Yankee besides Jeter to start a postseason game at the position since Tony Fernandez in Game 5 of the 1995 ALDS against the Mariners.
Jeter extended his postseason hitting streak to seven games with a sixth-inning double off Orioles starter Joe Saunders. Jeter has recorded eight hits this series, which matches his most in an ALDS.
Jeter has four consecutive multi-hit games in the postseason for the first time in his career.
Phil Hughes set a postseason career high with eight strikeouts, which is the most by a Yankees pitcher in a playoff game since A.J. Burnett struck out nine in Game 2 of the 2009 World Series.
The only run Hughes allowed was a solo homer to Nate McLouth in the fifth inning. Hughes surrendered 35 homers in the season, which was tied for the second most in the Majors. It was the first postseason homer of McLouth's career.
Joe Saunders matched a postseason high with five strikeouts. Saunders allowed one run over three hits in 5 2/3 innings after throwing 5 2/3 innings of one-run ball to lead the O's over the Rangers in the Wild Card Game.
Yankees left-handers were 0-for-7 against Saunders, who held lefties to a .199 average and .451 OPS during the season.
Troy Patton hasn't allowed a run over his last 17 2/3 innings, including the postseason. The last time the O's reliever allowed a run was July 2 against the Mariners.
Alex Rodriguez was the No. 5 hitter, the lowest he has hit in a postseason lineup since batting eighth in Game 4 of the 2006 ALDS against the Tigers. Rodriguez had hit in the third or fourth spot in the order in 36 consecutive playoff games since batting eighth.
Rodriguez, who was lifted for a pinch-hitter for the second consecutive game, has struck out at least two times in five consecutive postseason games, the longest such streak of his playoff career.
Rodriguez is 2-for-16 in the ALDS with nine strikeouts, while teammate Curtis Granderson is 1-for-16 with nine strikeouts.
It was the first time the Yankees have played back-to-back extra-inning games in the same playoff series since Games 2 and 3 of the 2009 ALCS against the Angels.
Every game in this series has been tied or within one run heading into the ninth inning.
Darren O'Day has appeared in all five of Baltimore's postseason games, allowing just one hit over seven scoreless innings.
Chris Toman is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.