Draft and minor leagues The
Atlanta Braves selected Smith-Shawver in the seventh round of the
2021 Major League Baseball draft. He signed with the team, foregoing his commitment to Texas Tech, and received an over-slot signing bonus of $997,500. While pitching in the FCL and for the GreenJackets, Smith-Shawver focused on developing a slider. The following year, Smith-Shawver began the season with the
Rome Braves. At the
High-A level, he made three starts, threw fourteen scoreless innings with four walks and 23 strikeouts, while yielding six hits. On May 2, Smith-Shawver was promoted to the
Mississippi Braves. He allowed five hits in seven scoreless innings over two appearances at the
Double-A level, then made his
Triple-A debut with the
Gwinnett Stripers on May 19, yielding his first earned runs on the 2023 season.
Atlanta Braves On May 30, 2023, the Braves selected Smith-Shawver's contract and promoted him to the major leagues for the first time. He faced the
Arizona Diamondbacks in his major league debut on June 4, pitching innings of relief while recording three strikeouts and one walk. Smith-Shawver made his first start against the
Washington Nationals on June 9, yielding two unearned runs on three hits in innings. On June 15, Smith-Shawver earned his first win, giving up six hits and one walk with six strikeouts in innings against the
Colorado Rockies. He became the youngest Braves pitcher to win a game since
Steve Avery on August 24, 1990. On June 26, Shawver was optioned back down to Gwinnett to make room on the roster for the Braves to promote relief pitcher
Dereck Rodriguez. Smith-Shawver was invited to spring training before the 2024 regular season began, but did not make the club and was optioned to Triple-A Gwinnett. On May 5, 2025, Smith-Shawver pitched eight shutout innings in the longest start of his professional career. He did not yield a hit until the top of the eighth, to
Santiago Espinal of the
Cincinnati Reds. He was removed from a game on May 29, and placed on the 15-day injured list. Smith-Shawver was subsequently moved to the 60-day IL and diagnosed with a
UCL tear. He underwent
Tommy John surgery on June 9, officially ending his season. ==Personal life==