Most Common Pitchers

Year Starting Pitchers Closer Bullpen
Most Years O'Day Gilmore Keefe Shaw Whitney Sullivan
1889 (41-83) Ferson Haddock Keefe O'Day Healy Sullivan    
1888 (48-86) Whitney Widner Keefe O'Day Gilmore      
1887 (46-76) Whitney Shaw   O'Day Gilmore      
1886 (28-92) Barr Shaw Madigan Crane Gilmore      
4 years 12 pitchers 0 pitchers 1 pitchers
Shading is not used to differentiate the players' performances. It is merely used to quickly illustrate long strings of games/years played by a single player. When a player in the column changes, so does the color of the shading.