No one really saw him play or his potential, but he tried his luck to join a basketball team when he was in grade three at Don Bosco Technical Institute of Makati.

After his elementary days were over, he first went to Adamson under coach Charlie Dy before eventually transferring to San Beda under legendary bench tactician Ato Badolato.

He was practically unstoppable in game 3 of the best-of-3 finals series as he scored 30 points against their college rival De La Salle Green Archers.

He would make a third straight finals appearance in 2003 but he and his Blue Eagle team would yield their crown to the veteran Far Eastern University Tamaraws.

The Aces have been happy with the trade as they got a pure point guard in Tenorio to make life easier for Willie Miller who could now concentrate on his scoring.

As a starting point guard Tenorio led the Alaska team to a scrambling victory over San Miguel Beer in their first game.

[3] On October 19, 2016, Tenorio was named as the 2016 PBA Governors' Cup finals Most Valuable Player after averaging 17.2 points, 4.7 assists and 3.8 rebounds against the Meralco Bolts.

[7] While playing for Ginebra, Tenorio joined Bonnie Tan's coaching staff at the Letran Knights starting in NCAA Season 95 (2019).

[9] Tenorio was appointed by the Samahang Basketbol ng Pilipinas as the head coach of the Philippines men's youth teams in November 2024.