Stone was an All-Southern college football tackle for the Sewanee Tigers of Sewanee:The University of the South. Vanderbilt coach Dan McGugin wrote “Lex Stone, of Sewanee, at left tackle was also an exceptional man. He is strong, fast, heavy and good running with the ball or stopping an opponent who has it. He, too, is a line man of a decade for a SIAA college.” Stone was picked as a second-team tackle on Sewanee’s All-time football team. At Sewanee he was a member of Phi Delta Theta.
He served as the head football coach at the University of Tennessee for one season in 1910, compiling a record 3–5–1. He also coached the Tennessee Volunteers basketball team during the 1910–11 season, tallying a mark of 7–9. Stone also served in the Tennessee House of Representatives from 1913 to 1915.
Head coaching record