In baseball, sidearm is a motion for throwing a ball along a low, approximately horizontal plane rather than a high, mostly vertical plane (overhand).

Madison Kyle Bumgarner, nicknamed, "MadBum", is an American professional baseball pitcher who is a free agent. Previously, he pitched in Major League Baseball (MLB) for the San Francisco Giants (2009–19) and Arizona Diamondbacks (2020–23). Bumgarner has won three World Series championships and two Silver Slugger Awards. He has also been selected to four National League (NL) All-Star teams and has the most strikeouts in franchise history by a Giants left-handed pitcher.