2018 (S2): Atencio made his S2 debut as a substitute against Timbers 2 on August 19, with the midfielder scoring his first professional goal shortly after entering the match. He then started the team’s next match, a road fixture against Oklahoma City Energy FC.
Sounders Academy: Atencio joined Sounders Academy in 2016 as one of the youngest members of the U-15 squad. The midfielder has racked up over 100 matches played for Seattle’s youth teams. Throughout his four years in the Academy, Atencio has been an important start on teams that won the Youdan Trophy in England, Generation adidas Cup, and the 2017-18 USSDA national championship. He was also the Player of the Tournament as the Sounders U-15s finished third at the Manchester City Cup, beating the likes of Tottenham Hotspur and Manchester City.
Atencio has represented the United States Youth National Teams at the U-15 and U-17 levels. He started every match for the U.S. U-15s as they won the Torneo Delle Nazioni in Italy, defeating the likes of Russia, Portugal and England. The Bellevue native has been called up to the U-17 national team four times, with appearances against the Netherlands, Brazil, Chile, Argentina and Mexico on his resumé.
Signed to Tacoma Defiance’s roster on January 22, 2019