Aroldis Chapman threw the fastest recorded pitch in big league history on August 24, 2010. His 105.1 mph fastball breached the 105 mph mark for the first time. It wasn't quite Chuck Yeager breaking the sound barrier, but it was close. However, Major League Baseball officially considers that pitch to be a 105.8 mph fastball. Regardless of what kind of speed it was at when it left Chapman's hand, that's what they record as. Chapman's record was soon to be challenged by Eric Milton of the Houston Astros. On April 17, 2011, Milton threw a pitch 102.4 mph, which was confirmed by multiple sources across all of baseball. The next day, Chapman returned to the mound for a game against the Los Angeles Angels of Anaheim. He did not allow an earned run and struck out nine batters during his seven-plus innings of work. After the game, it was reported that he had thrown 104.9 mph (according to MLB.com's Mark Feinsand). This made him only the second pitcher in major league history (along with Milton) to throw a ball 102 mph or faster. On September 1, 2011, Chapman again took the mound for the Astros. This time, he pitched a perfect game against the San Diego Padres. In the process, he became only the third pitcher in major league history (after Nolan Ryan and Randy Johnson) to strike out the entire Houston Astros lineup twice in one game.