April 3 – Jack Clements, now with St. Louis, is the first southpaw to catch in 1,000 MLB games.
April 21 – Philadelphia Phillies pitcher Bill Duggleby hits a grand slam in his first major league at-bat. No one else will accomplish that feat until Jeremy Hermida in 2005.
April 22 – This day in baseball would see two no-hitters. First, Ted Breitenstein would throw the second no-hitter of his career, as the Cincinnati Reds would defeat the Pittsburgh Pirates, 11–0. Meanwhile, Jay Hughes would toss a no-hitter for the Baltimore Orioles in a 5–0 win over the Boston Beaneaters. This is the first time in Major League history that two no-hitters would be thrown on the same day. It would not happen again until Dave Stewart and Fernando Valenzuela turned the trick on June 29, 1990.
July 5 – Lizzie Arlington becomes the first woman to play in organized baseball as she pitches for the Reading Coal Heavers of the Atlantic League. She hurled the final inning of that game and gave up two hits and a walk but did not allow a run. Some claim she also pitched in exhibition games after being hired by Ed Barrow, the league's president.
July 8 – Red Donahue tosses a no-hitter in a 5–0 Philadelphia Phillies victory over the Baltimore Orioles.
August 21 – In the second game of a doubleheader, Walter Thornton of the Chicago Orphans pitches a 2–0 no-hitter against the Brooklyn Bridegrooms.
December 1 – New York Giants president Andrew Freedman renews his team lease on the Polo Grounds for the next 10 years.