The 1887 Indianapolis Hoosiers finished with a 37–89 record in the National League, finishing in last place in their first season in Indianapolis. They had played the previous three seasons in St. Louis, Missouri as the Maroons.

Offseason

Following the 1886 season, the Maroons franchise was purchased by the National League and subsequently sold to John T. Brush. On March 8, the Hoosiers additionally purchased a number of players who were under league control. Technically, these players were purchased from the Maroons franchise. Among these players were Henry Boyle, John Cahill, Jerry Denny, Jack Glasscock, Egyptian Healy, John Kirby, Jack McGeachey, George Myers, Otto Schomberg, and Emmett Seery.

Notable transactions

Regular season

Season standings

Record vs. opponents

Notable transactions

Roster

Player stats

Batting

Starters by position

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

Other batters

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

Pitching

Starting pitchers

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

Other pitchers

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

Relief pitchers

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