- Bats Left, Throws Right
- Height 5' 11", Weight 190 lb.
- High School Orange Lutheran High School
- Debut April 6, 2019
Outfielder Jason Martin was drafted by the Houston Astros in the 8th round of the 2013 amateur draft, out of a high school in California. He gave up a commitment to Long Beach State University to sign with the Astros. His progression through the minor league ranks started slowly, as he spent most of his first two seasons at the Rookie Class level, hitting around .250 both years with a total of one long ball. In 2015, he took a step forward with the Quad Cities River Bandits of the Midwest League, as he put up a batting line of .270/.346/.396 with 8 homers and 57 RBIs in 105 games.
Martin found his power stroke in 2016 when he was assigned to the Lancaster JetHawks of the California League. Benefiting from the very favorable hitting environment in the high desert air, he launched 22 doubles, 7 triples and 23 homers to finish at .270/.357/.533 in 110 games. He was back in Class A at the start of 2017, with the Astros' new affiliate in the Carolina League, the Buies Creek Astros and hit .287 in 46 games to earn a promotion to the AA Corpus Christi Hooks. He continued to do well at the higher level, with a .273 average and 11 homers in 79 games. His combined line was .278/.332/.487 with 35 doubles and 18 homers, showing that he could still hit for power in a more normal environment.
On January 13, 2018, he was traded to the Pittsburgh Pirates alongside Michael Feliz, Colin Moran and Joe Musgrove in return for ace starter Gerrit Cole. He was the only player in the deal not to have any major league experience. Ironically, Cole had graduated from the same high school as Jason, Lutheran High School of Orange County, a few years before him.