1st After holding out for a $4,000 salary, Tim Keefe wins his 1888 debut for the Giants, beating Boston 6–1.
3rd In New York, George Gore goes to LF to start the game, but box-seat holders scream for Mike Slattery, and captain Buck Ewing makes the change before the game starts. It turns out wrong as the Gothams lose to Boston, 6–2.
Light-hitting George Shoch hits a grand slam in the 5th inning, off Kid Gleason, to provide the margin of victory as Washington edges host Philadelphia, 9-8.
5th Gid Gardner plays for the Phillies after being traded from Washington for Cupid Childs. But when Childs refuses to play for the Senators, the trade and today’s game are nullified. Childs will end up in Kalamazoo for his recalcitrance.
6th Long John Reilly hits 2 HRs, giving him 4 in Cincinnati’s 4-game series versus Kansas City. Reilly will finish the season with an AA-leading 13 HRs.
9th Playing in the close quarters of Indianapolis’s Athletic Park, Roger Connor hits 3 HRs and the Giants total 7 (Gore, Keefe, H. Richardson, and Tiernan) to tie the existing records. Connecting for Indianapolis is Roger Denny: When Detroit belted 7 homers against St. Louis in 1886, Denny also homered for the losers. The Giants win, 18–4.
With an 18–6 lead after 7 innings, Louisville righthander Elton “Ice Box” Chamberlin (AKA Chamberlain) pitches the final 2 innings lefthanded, holding Kansas City scoreless. Chamberlin will reprise his righty-lefty pitching in a game on October 1, 1891 (as noted by Cliff Blau).
12th St. Louis RF Tommy McCarthy shows his savvy by sneaking behind a runner who had just singled and picking him off 1B on a throw from 2B. The Browns beat the Cowboys, 4–3.
15th The Athletics whip visiting Baltimore, 12-3, as Harry Stovey hits for the cycle (as noted in Total Baseball).
18th George Borchers pitches a 5-inning shutout in his ML debut, winning for Chicago, 13–0, over Boston, to up the Colts lead to 3 games.
19th During Chicago’s 6–4 win over the Phillies, 2B Fred Pfeffer goes from 1B to 2B on a fly to LF. According to the Chicago Tribune, “Pfeffer has introduced a new slide. He throws his body away from the base-line and reaches one foot for the bag.” After a catch, George Wood, Phils LF, makes a perfect throw to Arthur Irwin, who is surprised to find Pfeffer’s foot on the bag.
Senator owner Robert C. Hewitt recalls acting manager Burkett to Washington after the team loses its 7th straight on the road. Jim Whitney and the owner’s son are left in charge.
20th The Athletics try and stage a Sunday game across the river in Gloucester, NJ, but the inadequate stands and field are overrun by a mob of spectators, and the game is called off.
22nd Future Hall of Fame slugger Ed Delahanty makes his ML debut with the Phillies, going hitless and making 2 errors at 2B. His contract had been purchased from Wheeling in the Tri-State League for $2,000.
25th Boston opens its new Grand Pavilion, an elaborate double-decked structure. Though the Pavilion seats 2,800, 12,000 see the Beaneaters lose their home opener to the Phillies 4–1.
26th With flawless fielding and 3 hits, Hardie Richardson of Detroit stars in a 9–8 win over Chicago. His last hit is a game-winning HR in the 9th.
27th Bill “Adonis” Terry hurls his 2nd career no-hitter, beating Kansas City 4–0. Three men walk and 2 more reach on errors. Terry no-hit St. Louis on July 24, 1886.
30th The Brooklyn Bridegrooms, so called because many players married over the winter, move into first place by winning 2 games from previous leader Cincinnati. The visiting Reds lose 4–3 and 10–6.