Tubid was the only provincial player in the supposedly all-city college where he ended up being the team captain in his freshman year. He played college hoops in the University of the East in the UAAP.
Tubid was drafted by the Shell Turbo Chargers as the sixteenth overall pick in the 2003 PBA draft and averaged 8.9 points in his rookie year. In his second season, he improved his mark to 12.3 points per game before being named Mr. Quality Minutes by the PBA Press Corps.
After Shell's disbandment following the 2004–05 PBA season, Tubid joined the Air21 Express and won his second Mr. Quality Minutes award while averaging 8.9 points in 44 games with just 11 starts.
The next conference, Tubid made further improvements due to the absence of Mark Caguioa and Jayjay Helterbrand in the backcourt that eventually rewarded him with an All-Star Game appearance.
In the 2008 PBA Fiesta Conference, Tubid suffered a dislocated ankle injury in a game against Alaska that forced him to sit the rest of the quarterfinals and semifinals. When the Kings were in need of a scorer in Game 4 of the finals, he came off the bench and helped Ginebra even the series at 2-2. Then when the series went to a decisive 7th game, he stepped up when his team needed him most, scoring 20 points in the game to help the Kings win their 8th title. After the series, he along with teammate Eric Menk were named co-Finals MVP of the series.
During the 2010–11 Philippine Cup, he changed his uniform number from 71 to 15 because it represents the date of his birthday.