Tarleton State University Athletics

Sophomore (2022):
Played in two games, completing one pass for a 47-yard touchdown vs. Sam Houston on Oct. 29 … Also played vs. Houston Christian in the season finale on Nov. 19.
 
Holy Cross:
Played with the Holy Cross Crusaders the last two seasons … In 2021, played in 13 games at quarterback, completing 88-of-134 (.657) passes for 1,040 yards, eight touchdowns and four interceptions … Appeared in one game in the Crusaders’ shortened 2020 spring campaign … Part of two Patriot League championships.
 
Westlake High School:
Named the Most Valuable Player of the Marmonte League … First Team All-Conference selection after setting a school single-season record for most total yards as a senior, throwing for 3,502 yards and 27 touchdowns while rushing for 426 yards and 11 scores … Set school single-game records with 509 passing yards and seven touchdown passes against Newbury Park in 2019 … Played three years of varsity football.
 
Personal:
Is a 2020 graduate of Westlake HS in Westlake Village, California … Son of Sergio and Laura … Has one brother, Mateo, and one sister, Siena … His brother, Mateo, is also on the Texan football team … Full name is Marco Tomas Siderman … Hometown is Westlake Village, California … Majoring in Criminal Justice … Born April 2.