Newberry attended Mira Mesa Senior High School in San Diego, California.

[3] Newberry made his professional debut that season with the Arizona League Royals, going 1-0 with a 2.81 ERA over 16 innings.

With the 2020 Kansas City Royals, Newberry appeared in 20 games, compiling a 1-0 record with 4.09 ERA and 24 strikeouts in 22.0 innings pitched.

[9] In 2021, Newberry struggled to a 16.62 ERA across 4 appearances for the Royals, and was designated for assignment following the promotion of Jackson Kowar on June 7, 2021.

[14] On July 21, 2023, Newberry signed with the Chicago Dogs of the American Association of Professional Baseball.