Explained: Jerry Koosman, who got final out in the 1969 Miracle Mets' World Series victory, dies at 83

Jerry Koosman, an All-Star left-hander who got the final out of the 1969 World Series, died Sunday at 83

ERA

Earned run average, a measure of runs allowed per nine innings pitched

complete games

Games in which a pitcher throws the entire game without relief

NL Championship Series (NLCS)

The playoff series determining the National League's World Series representative

shutout

A game in which a pitcher allows the opposing team no runs

Rookie of the Year voting

Annual award voting for the best first-year player in each league