The Rockies invited Doyle to spring training by the Rockies in 2020.[6] He was promoted to the major leagues by the Rockies on September 23.[7] He made his major league debut that night against the San Francisco Giants. He pitched in three games that season, allowing 6 runs in 2+1⁄3 innings.[8]
Doyle pitched for the Double-A Hartford Yard Goats in 2021, but injuries hampered his season. He missed parts of May and June with a biceps injury, then ended his season on June 29 with a shoulder injury that required surgery.[9] On October 21, Doyle was outrighted off of the Rockies' 40-man roster.[10] He missed the entirety of the 2022 season recovering from surgery.[11]
Doyle began the 2023 season with the Triple-A Albuquerque Isotopes, making 22 appearances and logging a stellar 1.01 ERA with 29 strikeouts and 3 saves in 26+2⁄3 innings pitched. On July 14, the Rockies selected Doyle's contract, returning him to the active roster.[12] In 15 games for Colorado, he struggled to a 6.85 ERA with 18 strikeouts across 23+2⁄3 innings of work. On November 17, Doyle was designated for assignment following the acquisition of Cal Quantrill.[13] He was non-tendered and became a free agent on November 17.[9]
Atlanta Braves
On November 25, 2023, Doyle signed a minor league contract with the Atlanta Braves.[14] He spent the 2024 season with the Triple-A Gwinnett Stripers, also making one appearance for the rookie-level Florida Complex League Braves. He missed almost three months with a left oblique muscle strain.[9] In 33 games for Gwinnett, Doyle compiled a 3–2 record and 3.48 ERA with 45 strikeouts and 3 saves across 41+1⁄3 innings pitched. He elected free agency following the season on November 4.[15]
High Point Rockers
On January 22, 2025, Doyle signed a minor league contract with the Colorado Rockies.[16] He was released prior to the start of the season on March 14.[17]
On April 25, Doyle signed with the High Point Rockers of the Atlantic League of Professional Baseball.[18] In 16 appearances (four starts) for the Rockers, he posted a 1–3 record and 4.03 ERA with 43 strikeouts and five saves over 38 innings of work.
Leones de Yucatán
On July 7, 2025, Doyle's contract was purchased by the Leones de Yucatán of the Mexican League.[19] In 6 games (4 starts) he threw 17+2⁄2 innings, going 0–1 with a 6.11 ERA and 19 strikeouts.[8]
