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Notable transactions

• May 22, 1900: Jack O'Connor
  Jack O'Connor (catcher)
  John Joseph O'Connor , also known as Peach Pie, was a utilityman in Major League Baseball in the American Association, the National League, and the American League, primarily used as an outfielder. He began his career as a left fielder and catcher for the Cincinnati Red Stockings, and he soon moved...
  
   was purchased by the Pirates from the St. Louis Cardinals
  St. Louis Cardinals
  The St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. They are members of the Central Division in the National League of Major League Baseball. The Cardinals have won eleven World Series championships, the most of any National League team, and second overall only to...
  
   for $2,000.

Roster

1900 Pittsburgh Pirates
Roster
Pitchers		Catchers Infielders		Outfielders		Manager

Starters by position

Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in

Pos	Player	G	AB	H	Avg.	HR	RBI
OF		135	527	201	.381	4	100
OF		106	399	110	.276	3	32

Other batters

Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in

Player	G	AB	H	Avg.	HR	RBI

Starting pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Player	G	IP	W	L	ERA	SO
	32	215.2	15	13	3.67	56
	2	13	0	2	6.92	3

Other pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Player	G	IP	W	L	ERA	SO

Relief pitchers

Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts

Player	G	W	L	SV	ERA	SO
	1	0	0	0	0.00	0

1900 Chronicle-Telegraph Cup

The Chronicle-Telegraph Cup was held just once, in 1900, and was sponsored by the Pittsburgh Chronicle-Telegraph, a newspaper in the hometown of the National League's second-place finisher, the Pirates. It pitted the Pirates against the first-place Brooklyn Superbas

1900 Brooklyn Superbas season

The 1900 Brooklyn Superbas captured their second consecutive National League championship by four and a half games. The Baltimore Orioles, which had been owned by the same group, folded after the 1899 season when such arrangements were outlawed, and a number of the Orioles' players, including star...

in a best-of-five postseason series. The Superbas won the series, 3 games to 1.