Son of Jim and Cathy Johnson, and he has 1 brother, Dane...In 2009, Johnson was 1 of only 2 San Diego County players, and the county's only pitcher, to play in the Area Code Games in Long Beach...Pitched at Cal Poly San Luis Obispo where he majored in business administration...Enjoys surfing, backpacking in the High Sierras and fishing as hobbies.
Split the campaign between San Jose (A), Richmond (AA) and Sacramento (AAA), owning a collective 4.69 ERA (42 ER, 80.2 IP) in 37 minor league appearances (5 starts)...Began the season out of the bullpen with SAC and made 4 appearances for a 9.00 ERA (6 ER, 6.0 IP) before being transferred to RIC...In 29 appearances at the Double-A level, Johnson pitched to a 4.05 ERA with 26 BB and 50 SO...Posted a 0.59 ERA in his final 5 appearances with RIC before being promoted to SAC...Was a member of the 2019 Triple-A National Champion Sacramento River Cats…made his 2nd-career postseason appearance (1st was in 2013 with Single-A Salem-Keizer), and posted a 2.53 ERA (3 ER, 10.2 IP) in 2 appearances (both starts)…he allowed 8 hits with 9 SO and a .211 AVG.
Spent the season with Richmond (AA) and made 18 appearances (all starts) with a 2-5 record and a 3.86 ERA...Missed time after being struck in the head by a line drive on June 13 vs. Portland…had thrown 4.0 scoreless innings in his 7th appearance after returning from Tommy John surgery...sidelined for almost 3 weeks with a concussion.
Johnson's season was cut short in April after undergoing Tommy John surgery...Was placed on the DL April 23 and missed the remainder of the season...Appeared in six games for triple-A Sacramento, going 0-2 with a 4.35 ERA (5er, 10.1ip).
Spent the entire campaign with double-A Richmond, going 1-4 with a 3.27 ERA in 24 games (seven starts)...also went 5-for-5 in save chances. Missed more than two months of the season, being placed on the disabled list from June 22- July 27 with right shoulder tendinitis and again from Aug. 10-Sept. 30 with a right forearm strain. Was added to the Giants' 40-man roster on Nov. 18, 2016.
Spent the majority of the season with San Jose (A), going 8-3 with a 2.43 ERA. Led the team in innings (111.0), games started (18), wins (8) and ranked third in strikeouts (111). Posted a 3-0 record with a 1.09 ERA (3er, 24.2ip) and 29 strikeouts in four starts during the month of July...was named California League Pitcher of the Week for July 6-13, 2015. Went 5-0 with a 0.94 ERA in eight games (seven starts) for San Jose following the All-Star Break. Made three starts for Richmond (AA) and posted a 1-1 record with a 5.93 ERA (9er, 13.2ip)...Was named to California League Mid-Season and Postseason All-Star teams.
Spent the entire season with August (A), going 4-7 with a 4.57 ERA and 94 strikeouts.