May 21, 1954: Red Sox pitcher Frank Sullivan makes his first major league start before 30,019 fans at Yankee Stadium and pitches a complete game in a 6-3 Red Sox win; Sullivan's mound opponent was future Hall of Famer Whitey Ford, but Sullivan limits the Yankees to seven hits, striking out Mickey Mantle in his first three at-bats. [...]

May 20, 1919: Babe Ruth is the pitching and hitting star as the Red Sox defeat the St. Louis Browns 6-4 at Sportsman's Park; the Babe pitched all nine innings to pick up his third win of the season and he hit a grand slam home run, the first of 16 grand slams he would hit in his career, in the second inning. [...]

May 19, 2008: John Lester pitches a no-hitter against the Kansas City Royals, striking our nine hitters, and the Red Sox win 7-0 before a sellout crowd of 37,796 at Fenway Park; Jason Veritek is the catcher for Lester's no-hitter, and this is his fourth no-hitter, which is more than any catcher in MLB history. [...]

May 18, 1955: The Red Sox allow Cleveland Indians to score 11 runs in the fifth inning and the Tribe goes on to defeat Boston 19-0, behind left-handed pitcher Herb Score; the 19 run deficit is the worst shutout loss in Red Sox history and the most runs the Indians have ever scored in a shutout win before 11, 490 disappointed fans at Fenway Park. [...]

May 17, 1971: The Red Sox pick Luis Tiant up off the scrap heap and sign him to a minor league contract after he is released first by the Twins and then by the Atlanta Braves; Luis' sore arm recovers and he will go 15-6 in 1972, and 121-81 during his seven full seasons with the Red Sox, ultimately earning election to the Red Sox Hall of Fame. [...]