3rd Brooklyn virtually clinches the NL pennant by winning 2 at Boston, 6–4 and 3–1. For manager Ned Hanlon, it is his 5thpennant in 7 years.
8th The Chicago Colts and the Cincinnati Reds set a record for ragged fielding that still stands for errors in a doubleheader. Host Chicago boots 17—tying a record—and Cincinnati 8 as the Reds win both ends of a doubleheader 13–4 and 9–1 before 700 fans, with the 2nd game called with 2 outs in the top of the 9th because of darkness. In fact, Chicago pitcher Jack Taylor is hit in the chest by a line drive off the bat of Tommy Corcoran and needs to be helped to the bench. With no pitcher warmed up, and darkness descending umpire Hank O’Day calls the game.
11th The AL announces that in 1901 it intends to put a team in Baltimore led by John McGraw, and one in Washington. But they pledge to stay out of Philadelphia and St. Louis unless the NL starts a fight.
Rube Waddell of Pittsburgh strikes out an NL season-high 12 in a 2–1 win over Chicago. He will lead the league with 130 strikeouts and a 2.37 ERA.
13th Ban Johnson promises to put the following provisions in all player contracts in the AL: no suspensions for more than 10 days; clubs to pay doctor bills for injuries occurring during a game; if a club abandons the league, its players become free agents after 10 days; no farming or selling without the player’s written consent; no reserve clause for more than 3 years or for less salary than the current year; and binding arbitration for disputes.
Brooklyn edges the Giants, 1–0, behind the pitching of Harry Howell. Jennings and Cross double in the 6th for the lone run. The Giants (52-85) finish in 7th place, a game ahead of the Reds (52-87).
15th The Pittsburgh Chronicle-Telegraph World Title series between first-place Brooklyn and 2nd– place Pittsburgh begins with a 5–2 win for Joe McGinnity over Rube Waddell. The Superbas win the series, the Cup given by the newspapers, and half the gate receipts 3 days later. For his efforts, which include a league-leading 29 wins and 347 innings pitched, McGinnity is given permanent possession of the trophy and a $100 bonus.
20th The Cardinals withhold the final month’s pay on all but 5 players, including John McGraw and Wilbur Robinson, citing late hours, dissipation, and gambling as reasons for the poor showing of the team, which finished tied for 5th.
31st Ban Johnson writes a letter to NL president Nick Young seeking peace, based on parity as a major league for the AL.