| Personal information | |
|---|---|
| Born | June 25, 1980 Bocaue, Bulacan, Philippines |
| Nationality | Filipino / American |
| Listed height | 6 ft 6 in (1.98 m) |
| Listed weight | 225 lb (102 kg) |
| Career information | |
| College | Bakersfield College |
| PBA draft | 2003: 1st round, 6th overall pick |
| Selected by the Purefoods TJ Hotdogs | |
| Playing career | 2003–2020 |
| Position | Center / power forward |
| Career history | |
| 2003–2004 | Purefoods TJ Hotdogs |
| 2004–2005 | Shell Turbo Chargers |
| 2005–2006 | Coca-Cola Tigers |
| 2006–2010 | Barangay Ginebra Kings |
| 2010 | Air21 Express |
| 2010–2015 | Barangay Ginebra San Miguel |
| 2015–2017 | GlobalPort Batang Pier |
| 2017–2020 | San Miguel Beermen |
| Career highlights and awards | |
John Billy San Luis Mamaril (born June 25, 1980) is a Filipino-American former professional basketball player who last played for the San Miguel Beermen of the Philippine Basketball Association (PBA). He plays the forward and center positions. Like his father, former PBA player and Barangay Ginebra Kings slotman Romy "Mama" Mamaril, he is known for his physical and rugged defense. He played 17 seasons in the Philippine Basketball Association.