Question: Mastophora dizzydeani was named after a pitcher who was the last in the National League to win how many games in one season?

Related documents: [0]  [DOC] Mastophora dizzydeani is a species of spider named after baseball player Dizzy Dean. It uses a sticky ball on the end of a thread of webbing to catch its prey. [END] 
[1]  [DOC] Jay Hanna "Dizzy" Dean (January 16, 1910 – July 17, 1974), also known as Jerome Herman Dean, was an American professional baseball player. He played in Major League Baseball as a pitcher for the St. Louis Cardinals, Chicago Cubs and the St. Louis Browns. A brash and colorful personality, Dean was the last National League pitcher to win 30 games in one season. After his playing career, he became a popular television sports commentator. Dean was elected to the Baseball Hall of Fame in 1953. When the Cardinals reopened the team Hall of Fame in 2014, Dean was inducted among the inaugural class. [END]  
Answer: 30
30