 Clariño was part of the Philippines U-22 squad that competed in the 2017 Southeast Asian Games held in Malaysia.Philippines finished fourth out of six in the group stage and failed to advance to the knockout rounds.In December 2017, he took part at the 2017 CTFA International Tournament though the squad that played in the friendly tournament in Taiwan was mentored by Marlon Maro in lieu of regular head coach Thomas Dooley.