Jen Pawol breaks MLB’s gender barrier as first female umpire to work regular-season game

• Pawol works first base in Marlins-Braves opener

• Fans cheer historic debut between innings in Atlanta

• Will call balls and strikes for Sunday series finale

Jen Pawol has made history as the first female umpire to work a regular-season game in the major leagues.

Pawol's much-anticipated debut came as the first base umpire for Saturday's first game of a split doubleheader between the Atlanta Braves and Miami Marlins. She enjoyed a quiet first inning, watching as Braves right-hander Hurston Waldrep struck out the first two batters before Agustin Ramirez lined out to third baseman Nacho Alvarez.