Following in the footsteps of his older brother Ian, Clarino played college football for the Fighting Maroons of the University of the Philippines in the UAAP starting in 2016.
[11][12] He would make his debut on the second matchday, a 6–0 win over Mendiola 1991, as United City won the PFL that year.
He would again play for United City during their first campaign in the 2021 AFC Champions League,[13] though the club would subsequently withdraw from the 2021 Copa Paulino Alcantara later that year.
[20][21] He had a short stint at the club, racking up 7 appearances before departing in early 2023, including matches in the Thai FA Cup.
[26] He would receive another call-up a year later for the 2016 edition of the same tournament,[27] where he made his debut in a 2–1 loss to Timor Leste.