On June 11, 2010, he was traded to the Air21 Express for Mike Cortez but then returned to Ginebra for a future pick.[1]
On April 6, 2015, Mamaril was traded by Ginebra to the GlobalPort Batang Pier for Dave Marcelo after Frankie Lim was hired by Barangay Ginebra as the team's head coach. Marcelo played college basketball for San BedaRed Lions, where he played under coach Lim.[2] The trade was a part of a 4-team trade that also involved Ginebra's sister team, San Miguel and Barako Bull.[3]
In October 2022, it was reported that Mamaril has retired from professional basketball to pursue becoming a nurse.[4]