Tayron Guerrero

The Padres signed Guerrero as an amateur free agent in 2009.^[1] In 2014, Guerrero started the season with the Fort Wayne TinCaps of the Single–A Midwest League before receiving a promotion to the Lake Elsinore Storm of the High–A California League.^[2] Guerrero played in the 2014 All-Star Futures Game for the World Team, recording a strikeout of Peter O'Brien.^[3] After the season, the Padres assigned Guerrero to the Arizona Fall League to continue his development.^[4] He was added to the 40-man roster on November 20, 2014.

Guerrero was called up to the major leagues on May 15, 2016,^[5] and made his major league debut on May 17.^[6]

On July 29, 2016, the Padres traded Guerrero, Andrew Cashner, Colin Rea, and cash considerations to the Miami Marlins in exchange for Josh Naylor, Jarred Cosart, Carter Capps, and Luis Castillo.^[7] After the trade, he pitched for the Jacksonville Jumbo Shrimp of the Double–A Southern League, for whom he had a 0–1 win–loss record with a 3.38 earned run average (ERA), and 22 strikeouts in 16 innings pitched.^[8] Guerrero competed for the Colombian national baseball team in the 2017 World Baseball Classic.^[9] In 2018 with Miami he was 1–3 with a 5.43 ERA, and 68 strikeouts in 58 innings, averaging 10.6 strikeouts per 9 innings.^[8] His fastest pitch of 2018 was 104.0 miles an hour, third-best in MLB only to pitches by Jordan Hicks and Aroldis Chapman.^[10]

Guerrero made 52 appearances for the Marlins in 2019, compiling a 1-2 record and 6.26 ERA with 43 strikeouts over 46 innings of work. Guerrero was designated for assignment on December 2, 2019.^[11]

On December 6, 2019, Guerrero was claimed off waivers by the Chicago White Sox from the Marlins.^[12] Guerrero was designated for assignment on January 2, 2020, following the promotion of Luis Robert. Guerrero did not play in a game in 2020 due to the cancellation of the minor league season because of the COVID-19 pandemic.^[13] Guerrero appeared in 18 games for the Triple-A Charlotte Knights in 2021, but struggled to a 6.63 ERA before being released on July 31, 2021.

On December 18, 2021, Guerrero signed with the Chiba Lotte Marines of Nippon Professional Baseball.^[14] In 2022, Guerrero appeared in 49 games for Lotte, recording a 3-3 record and 3.52 ERA with 63 strikeouts in 46 innings pitched.

On January 7, 2023, Guerrero signed a minor league contract with the Cincinnati Reds organization.^[15] In 20 appearances for the Triple–A Louisville Bats, he struggled immensely to an 0–4 record and 11.51 ERA with 20 strikeouts in 22+2⁄3 innings of work. Guerrero was released by the Reds on June 16.^[16]

On July 8, 2023, Guerrero signed with the Diablos Rojos del México of the Mexican League.^[17] In eight games for México, he recorded a 1.17 ERA with eight strikeouts and six saves across 7+2⁄3 innings pitched.

On December 18, 2023, Guerrero signed a minor league contract with the Los Angeles Angels.^[18] He made 33 appearances split between the rookie–level Arizona Complex League Angels and Triple–A Salt Lake Bees, posting a cumulative 3–3 record and 5.70 ERA with 38 strikeouts across 36+1⁄3 innings pitched. Guerrero elected free agency following the season on November 4, 2024.^[19]

On December 3, 2024, Guerrero signed a one–year, $600,000 contract with the Chiba Lotte Marines of Nippon Professional Baseball.^[20] He made 21 appearances for the Marines in 2025, compiling a 1-3 record and 6.41 ERA with 15 strikeouts and one save across 19+2⁄3 innings pitched. Guerrero became a free agent following the season.

On January 9, 2026, Guerrero signed a minor league contract with the Boston Red Sox.^[21]

• Career statistics from MLB · ESPN · Baseball Reference · Fangraphs · Baseball Reference (Minors) · Retrosheet · Baseball Almanac