Philippine professional basketball.
Even though he was born and raised in the Philippines, Caguioa later spent his adolescence in the United States. His career in basketball began when he was still studying in Glendale Community College and was named into the First Team All-Western State Conference honors of the 1999-2000 series. In 2001, Caguioa joined the PBA rookie draft and became the third overall pick by the Barangay Ginebra Kings.
After showing a very strong performance in the 2001 All-Filipino Cup and leading the Kings to the finals, Caguioa immediately earned the respect of the many Filipino basketball fans. Some of his defining moves include his slashing drives to the basket, killer cross-overs and penchant for making clutch plays. On that same year, Mark won the PBA Rookie of the Year award. In 2004 to 2005 series, Mark made a strong tandem with his comeback partner JayJay Helterbrand, scoring 43 to 45 points each game.
In 2005, Mark was named as one of the participants in the RP national team where they played in several exhibition games against the Iranian National Team and NBL team Sydney Kings. He also played in the 2005 FIBA Asia Champions Cup, wherein they finished fifth in the event. In the said tournament, Caguioa averaged 19.8 points and 3.4 rebounds per game. In 2007, the RP Team won the Southeast Asia Basketball Association Championship with a perfect record and finished ninth place with a record of 5-2.
Aside from his ability to play a good game, Caguioa was also known for his different nasty hairstyles. Some of his popular hairstyles include skinhead, buzz cut, Mohawk and close-cropped Navy ensign.