 Weidman and Trott made their debut for Detroit on September 3, 1881, a 4-3 loss against Buffalo.Weidman started 13 games for Detroit in the last month of the season, compiling an 8-5 record and 1.18 ERA in 115 innings pitched.He led the National League in ERA and had the lowest WHIP rating (walks + hits per inning pitched) at 1.043.