Cap Anson had a slugging percentage of .543 when making 502+ plate appearances in 1884.

1.100+or+more+ops+by+a+player+in+a+season+,+minimum+400+pa

Mickey Mantle had an OPS of .792 in his rookie season in 1951.

1.100+or+more+ops+by+a+player+in+a+season+,+minimum+502+pa

Bob Addy had a batting average of .282 in his rookie season in 1876.

Bob Anderson had a 4.16 FIP when pitching at least 162 innings in 1960.

Bob Addy had a wOBA of .296 in his rookie season in 1876.

Bob Addy had a wOBA of .296 in his rookie season in 1876.

Cap Anson had a batting average of .356 with 250+ at-bats in his rookie season in 1876.

Cap Anson hit .356 with 200+ at-bats in his rookie season in 1876.

Eric Chavez had 6 RBIs in his rookie season in 1998.

400+or+more+total+bases+by+a+player+in+a+season+,+list+by+most+recent

Cap Anson had 108 RBIs with 5+ home runs in 1885.

Myron Allen didn't score any runs for the New York Gothams in his career.