The modern professional is considered strong if he pitches a complete game.
Clarence Henley pitched nearly twice as many innings, maintaining enough control to strike out six while giving up nine hits and walking only one of the dozens of Oakland Oaks batters he faced.
Clarence Henley was born in Sacramento California in 1885 and his father, Oscar Henley was a brick mason and built the family's home around 1880. It is recorded as the oldest brick house in the city.
Cllarence Henley started pitching in the Pacific Coast League in 1905. He was tall and thin that he was immediately nicknamed "Slivers."
He threw so hard that it was said the Seals' catcher kept a piece of beefsteak in his glove to cushion the impact of the ball.
Clarence Henley posted two 30-win seasons, though the feat was a lot easier then because teams played more than 200 games per season, thanks to balmy West Coast weather.