Baguio started playing college ball at the University of Santo Tomas by suiting up for the school's basketball varsity squad, the Growling Tigers.

The Green Archers’ coaching staff was interested in adding him to their lineup with a condition that he would be spending time under Team B for a couple of years before he could move up.

Upon his return the following season, he led the Growling Tigers to the 2002 Final Four only to lose to the star-studded La Salle Green Archers squad.

And on his last year with the team, he ended his stint still scorching the net by being among the top 10 leading scorers in the league, and by being an All-Star caliber player.

He became part of the talented backcourt of the Gin Kings, together with National Teammate Jayjay Helterbrand, Mark Caguioa and Ronald Tubid.

In the middle of the eliminations of the 2010 Fiesta Conference, Barangay Ginebra shipped Baguio via a blockbuster one-on-one trade to Alaska Aces for two-time MVP Willer Miller.

[5] On July 31, 2014, he, together with JVee Casio and Sonny Thoss, signed new three-year contracts with the Aces, signalling his intention to remain with the Uytengsu franchise for the rest of his career.

[9] However, in 2022 Baguio came out of retirement to play for Valenzuela XUR Homes Realty Inc. of the Maharlika Pilipinas Basketball League (MPBL).