Cantlay, who recently completed his college career at Long Beach State University, also won the title in 2016, shooting 136 for a three-shot win.
The two past champs took the first-round lead after matching 68s, with Eric Allison (Anaheim, Calif.) one shot back. Playing together in the final round, Cantlay shot a 69 to Saunders' 70, with Allison (72) tied for third with John Perry (Brentwood, Calif.), four shots back.
Doug Hutchinson (Costa Mesa, Calif.) won the Net Division by three shots over Saunders with a 135 net total.
Other flight champions were:
A Flight – Julian Cantu = Low Gross
A Flight – Joe Zepeda = Low Net
B Flight – Matthew Satterly = Low Gross
B Flight – Mike Maxwell = Low Net
C Flight – George Gonzalez = Low Gross
C Flight – Steve Burke = Low Net