Following his release from the Philadelphia Phillies, the Mets signed Dario Alvarez as free agent on January 13, 2013. The left-handed pitcher worked his way through the Mets minor league system before getting the call to join the big club as a September call up in 2014. His combined minor league numbers in 2014 consisted of a 10-1 record with a 1.10 ERA in 29 relief appearances.
Alvarez made his Mets as well as his major league debut on September 13, 2014 vs the Miami Marlins. He faced one batter giving up an RBI single to Christian Yelich which tied the game. But the Mets would go on to win the game 4-3. He finished the season in the Mets bullpen appearing a 4 games for a total of 1 1/3 innings with a 13.50 ERA.
In 2015 he once again pitched in the minors before joining the team in September. As the Mets battled the Washington Nationals for the Eastern Division, Alvarez made his 2015 debut on September 7th. With the game tied at 5 in the 6th inning, Alvarez struck out Bryce Harper, who would go on to win the National League MVP in 2015. It was the only batter he would face, but it was good enough to earn him the win as the Mets scored 3 in the 7th inning to take the lead. With the win the Mets extended their lead over the Nationals to 4 games and would never look back as they cruised the rest of the way to win the division.
Alvarez would appear in another 5 games for the Mets in 2015 pitching a total of 3 2/3 innings and posting an ERA of 12.27.
Alvarez once again started the 2016 season in the Mets minor league system, but with his ERA ballooning to 9.98 for the Las Vegas 51s he was released and selected off waivers by the Atlanta Braves.
His overall numbers with the Mets, 5 innings pitched in 10 relief appearances with an ERA of 12.60.
While with the Mets Alvarez wore number 68.
Dario Alvarez also played for the following teams:
Texas Rangers – 2016
Atlanta Braves – 2016