Amateur career

Sherfy attended Newbury Park High School in Newbury Park, California, graduating in 2010.^[1][2] In his senior year, playing for the high school baseball team, he was named first-team All-Marmonte League after going 8–1 with a 2.25 ERA.^[3]

He played college baseball at the University of Oregon from 2011 to 2013. He was the Ducks closer in 2010 and 2011, recording 40 saves during that time.^[4][5][6] In 2012, he led the Pac-12 with 19 saves, and was second in strikeouts per 9 innings (13.6), fourth in hits per 9 innings (5.3), and fifth in strikeouts (93).^[7] In 2013, he was second in saves in the Pac-12 (21), and in strikeouts/nine innings (12.4).^[8] As a junior, he was named a first-team All-American by the National Collegiate Baseball Writers Association (NCBWA).^[9] Overall in his college career he was 7–3 with a 2.65 earned run average (ERA) and 148 strikeouts in 102 innings pitched (13.0 per nine innings).

Arizona Diamondbacks

Sherfy was drafted by the Arizona Diamondbacks in the tenth round, 300th overall, of the 2013 Major League Baseball draft.^[10] He made his professional debut with the Low-A Hillsboro Hops, and was promoted to the Single-A South Bend Silver Hawks during the season.^[11] He finished his first season with a 1–1 record, 1.04 ERA, 29 strikeouts, and seven saves over 17+1⁄3 innings.

Sherfy started the 2014 season with the High-A Visalia Rawhide, and also played with the Double-A Mobile BayBears, posting a 5–1 record and 4.59 ERA in 48 appearances. In 2015, he spent the entire season in Mobile, logging a 1–6 record and 6.52 ERA in 44 games. He split the 2016 season between the Triple-A Reno Aces, Mobile, and Visalia, accumulating a 3–4 record and 2.77 ERA in 55.1 innings of work between the three teams.^[12] The Diamondbacks added Sherfy to their 40-man roster after the 2016 season.^[13] He was assigned to Reno to begin the 2017 season.

Sherfy made his MLB debut on August 20, 2017, pitching a scoreless inning of relief against the Minnesota Twins. He finished his rookie season with 10.2 scoreless innings across 11 appearances. As of the end of the 2017 season, at 2-0 lifetime he was one of only two pitchers with a 1.000 winning percentage with Arizona who had more than one victory, with the other being Craig Breslow.^[14]

In 2018, Sherfy spent the majority of the year in Reno, but logged a neat 1.65 ERA in 15 major league games. Sherfy hit some struggles in 2019, recording a 5.89 ERA in 17 appearances for Arizona.^[15]

On January 9, 2020, Sherfy was designated for assignment by Arizona following the signing of Hector Rondon.^[16] He was outrighted to Triple-A Reno on January 16, and invited to spring training as a non-roster invitee. Sherfy was released by the Diamondbacks organization on August 18, 2020. The release was due to an arm injury, according to the Diamondbacks.^[17]

San Francisco Giants

On February 3, 2021, Sherfy signed a minor league contract with the San Francisco Giants that included an invitation to spring training.^[18] In May, Sherfy was named to the roster of the United States national baseball team for the Americas Qualifying Event.^[19]

On June 6, 2021, Sherfy was selected to the Giants’ 40-man roster, and placed on the 10-day injured list.^[20] He was activated and added to the active roster on June 9.^[21] Sherfy recorded a 4.22 ERA in 10 appearances before he was designated for assignment by the Giants on July 6.^[22]

Los Angeles Dodgers

On July 13, 2021, Sherfy was claimed off waivers by the Los Angeles Dodgers.^[23] He appeared in only four games for the Dodgers, allowing three runs in 4+1⁄3 innings before he was placed on the injured list on July 24 because of right elbow inflammation. He missed the rest of the season.^[24] The Dodgers outrighted him to the minors and removed him from the 40-man roster on November 5.^[25] Sherfy rejected the outright assignment and elected free agency.^[26]

Gastonia Honey Hunters

On April 8, 2022, Sherfy signed with the Gastonia Honey Hunters of the Atlantic League of Professional Baseball.^[27] Sherfy made two appearances for the Honey Hunters, allowing two earned runs and striking out six in two innings of work. On April 27, he retired from professional baseball.^[28]