He pitched five games in Major League Baseball, four of them as a starting pitcher.

[1] After his debut as a relief pitcher, Gray appeared in four games as a starter.

On May 24, 1890, Gray gave up 11 bases on balls and was charged with four wild pitches.

[1] He pitched a total of 31 innings, giving up 35 hits and 24 bases on balls and compiling a 1-4 win-loss record and a 7.55 earned run average (ERA).

At the time, he cited being "known as the six-fingered pitcher" as his main claim to fame.