Capacio was the FEU Tamaraws' skipper during the 1983 UAAP season and the most dependable performer for rookie coach Bong Chua.

Glenn's commercial basketball club experience includes playing for YCO Shine Masters and RFM-Swift Hotdogs in the PABL.

Beginning the 1997 season, Capacio was traded by Purefoods to Mobiline for Cadel Mosqueda, reportedly to free up room in the team's salary cap.

After players Alex Nuyles and Mike Burtscher voiced out to social media their frustration to the team, Capacio decided to follow suit.

[7] After an uneventful stint with Kia, Capacio decided to go back to the college ranks, where he served as an assistant coach under Aldin Ayo for the Letran Knights of the NCAA Philippines that won the basketball title in 2015.