Lincecum's mother, Rebecca Asis, is the daughter of Filipino immigrants. His father, Chris, worked at Boeing. When Tim was drafted, he held out for a larger signing bonus so his father could retire. From the age of four, Chris helped his son refine his pitching motion, filming his practices and games and analyzing the video. Lincecum attended Liberty Senior High School in the Issaquah School District, where he played two seasons of varsity baseball. As a senior, he was named the state's Player of the Year and led his school to the 2003 3A Kingco Athletic Conference title. Lincecum was selected by the Chicago Cubs in the 48th round (1,408th overall) of the 2003 Major League Baseball (MLB) draft, but he did not sign, opting to attend the University of Washington instead.