The 1886 World Series was won by the St. Louis Browns of the American Association over the Chicago White Stockings of the National League, four games to two. The series was played on six consecutive days running from October 18 to October 23 in Chicago, the teams were judged to be approximately equal going into the series, with gamblers betting on the teams at even odds. However, Chicago pitcher Jim McCormick was sidelined by a chronic foot ailment after game 2, an effort to use a substitute pitcher was protested by St. Louis, with the board of umpires flipping a coin to decide the matter in favor of the Browns. With his team unable to field a competent second starter, Chicagos ace John Clarkson proved unable to carry the pitching load. The series was decided in extra innings of game 6 by Curt Welchs so-called $15,000 slide following a passed ball, the decisive run scored by Welch became one of the most famous plays in the history of baseball in that era. The victory for the White Stockings, who featured the 62 slugger Cap Anson, the two teams agreed to meet each other in a best-of-seven pre-modern-era World Series, with the winner taking all the prize money. It was the second year that the Browns and White Stockings met in the World Series. The six games of the series were played on six consecutive days, the first three games were scheduled for Chicago, with the next three games to be held in St. Louis. A decisive seventh game, if necessary, was to be held in a neutral site, the location of the rubber game in the match was to be determined by coin toss, with each franchise owner selecting a city for the game. Going into the series, gamblers are said to have assessed the teams as approximately equal, more than $50,000 was said to have been wagered on the series in St. Louis alone. The Browns are said to have traveled together on a rail car to Chicago on the day before the scheduled October 18 start of the series. The series started in cold, windy conditions at 3,00 pm, the game began with a coin toss to determine which side would bat first, with Anson and Chicago winning the call and sending the Browns to the plate to open. After retiring the side in order in the top of the first, clean-up hitter Fred Pfeffer drove Anson home with a single and the blue uniformed home team took a lead, 2-0. St. Louis curveball specialist Bob Caruthers made short work of the home team, Chicago committed an astounding 12 errors and made 2 wild pitches in the defeat, with third baseman Tom Burns single-handedly adding 4 errors to the team total. Wednesday, October 20,1886 at Chicago Ball Park in Chicago, however, around 2,00 pm the skies cleared up and the ground was fit to play when the teams took the field for warmups shortly before 3,00 pm. Attendance was weak, doubtlessly owing to the bad weather, coming off his complete game 1-hitter the previous day, Bob Caruthers again took the ball for the Browns, while John Clarkson made his second series start for the White Stockings. A coin toss determined the first team to bat, with St. Louis winning the flip, the game was called after completion of eight innings due to darkness. John Clarkson was again on top of his game as the right hander struck out 8 Browns in earning his second win of the series, Caruthers took the loss for the Browns, giving Chicago a lead of two games to one in the series
The 1886 Series between the St. Louis Browns and the "Chicagos" was billed as a "World's Championship" with a winner-take-all prize of the total gate receipts.
Slugging St. Louis Browns outfielder James "Tip" O'Neill (1858-1915) hit two home runs in the second game of the series.
St. Louis was led by player-manager Charlie Comiskey (1859-1931), future owner of the Chicago White Sox franchise.
Chicago pitcher John Clarkson (1861-1909) started 4 games of the 6 game series, going 2-2 with 3 complete games and a 2.03 earned run average.