 Back in the 1800s, this guy, he pitched both ends of a doubleheader. What did Carl do? Baseball great Carl Hummel of the New York Giants hurled 18 innings of shutout ball to lead the Giants to a 1-0 win over St. Louis in the first half of a doubleheader at the Polo Grounds in New York. At the first half. 18 innings. Wow. Did his arm fall off?