Moore's sidearm throwing style earned him the nickname "Crossfire".

On May 9, 1901, he pitched the American League's first no-hitter, only to lose the game in the tenth inning.

As of 2020[update], no other pitcher has thrown more than 20 innings in a season without allowing an earned run.

[1] He won a career-high 22 games for the Phillies in 1910, leading the league in strikeouts.

This biographical article relating to an American baseball pitcher born in the 1870s is a stub.