San Francisco Giants Parker was drafted by the
San Francisco Giants in the second round (74th overall) of the
2010 Major League Baseball draft. Parker spent 2011 and 2012 with the Single-A
San Jose Giants and was promoted to the Double-A
Richmond Flying Squirrels for 2013 and 2014. The Giants promoted Parker to the major leagues for one day in August 2014, but he did not appear in a game before being optioned to Triple-A
Fresno. Because he was on the Major League roster for part of the season, Parker received a
2014 World Series ring, even though he did not play in the majors. In his first four minor league seasons, Parker hit 61 home runs and stole 73 bases, hitting .255 and striking out over 100 times each season.
2015 Parker was promoted for the second time on June 10, 2015, and made his major league debut on June 13, 2015, playing right field and batting 0-for-3 with two strikeouts. On June 14, 2015, Parker got his first major league hit with a single against
Rubby De La Rosa of the Arizona Diamondbacks. In four games, Parker batted .111 (1-for-9) with five strikeouts. He was optioned back to Triple-A
Sacramento when
Gregor Blanco returned from the disabled list on June 19. Parker was recalled on September 11, 2015, and hit his first RBI that night against the
San Diego Padres. On September 25, Parker hit a home run into the center field seats at the
Oakland Coliseum estimated at . On September 26, in a 14–10 Giants victory over the Oakland A's, Parker became the first rookie in Giants franchise history to hit three home runs in one game, and the first Giant with three homers and seven RBIs since
Willie Mays in 1961. Over three games, Parker hit five home runs (including 1 grand slam) in nine at-bats. He was called up to the Giants on May 9, but was sent back down a few days later. He was recalled again on May 24 following an injury to
Ángel Pagán. Parker was optioned again on July 29 to clear a roster spot for
Eduardo Nunez. Parker was activated again on August 28. For the season, Parker appeared in 63 games, batting .236 with 5 home runs and 14 RBIs.
2017 Parker was expected to compete with
Mac Williamson for the starting left field job in 2017. He was named to the opening day 25-man roster for the first time in his career, platooning with
Chris Marrero. On April 15, Parker suffered a broken right collarbone after making a running catch against the outfield wall. He was released by the Giants on March 30, 2018.
Los Angeles Angels On December 6, 2018, Parker signed a minor-league deal with the
Los Angeles Angels. He opened the 2019 season with the Triple–A
Salt Lake Bees. On July 3, 2019, the Angels selected his contract and promoted him to the major leagues. On July 13, he was
designated for assignment. Parker elected free agency following the season on November 4.
New York Mets On December 5, 2019, Parker signed a minor league contract with the
New York Mets. Parker did not play in a game in 2020 due to the cancellation of the minor league season because of the
COVID-19 pandemic. He became a free agent on November 2, 2020.
Taça Brasil On December 5, 2025, the
Brazilian Baseball and Softball Federation announced that Parker would play in the Taça Brasil, the country's baseball knockout cup championship, with the Anhanguera club of
Santana de Parnaíba. He became the second former Major Leaguer to play with Anhanguera (after
Paulo Orlando) and the first American. ==References==