Remembering Hawai'i golf pioneer, Ron Castillo, Sr. | KHON2
Florida's Ricky Castillo improves four spots in PGA TOUR University Velocity Global Ranking
U.S. Amateur notes: Dads lend support for Theegala, Castillo as run ends in Round of 32 – Orange County Register
Hawaii club pro battling cancer makes Sony Open debut at age 60 - PGA TOUR
Castillo, Wong make up opposite ends of North & South bracket
Christian Castillo - 2021-22 - Men's Golf - High Point University Athletics
Ricky Castillo - Men's Golf - Florida Gators
Castillo brothers take sibling rivalry to U.S. Amateur golf championship – San Gabriel Valley Tribune
Ricky Castillo, top-ranked player in U.S. Amateur field, withdraws over COVID-19 concerns | Golf Channel
Rolex Junior All-America First Team | Ricky Castillo
Florida's Ricky Castillo talks PGA Tour U and his puka necklace | College Golf Talk | Golf Channel - YouTube
Ricky Castillo vs. Ludvig Aberg was main draw at U.S. Amateur, and it delivered | Golf Channel
Christian Castillo - 2021-22 - Men's Golf - High Point University Athletics
Ricky Castillo locks up U.S. Amateur match-play berth; Cole Hammer ditches arm lock | Golf Channel
Ricky Castillo - Men's Golf - Florida Gators
Golf's future stars ready to take on Crooked Stick
Christian Castillo - 2021-22 - Men's Golf - High Point University Athletics
Ricky Castillo - Men's Golf - Florida Gators
Alexander: Yorba Linda's Ricky Castillo has a rough Friday at U.S. Open – Orange County Register
Ricky Castillo, youngest player left in U.S. Amateur Championship field, reaches Round of 32 – Orange County Register
Aston Castillo - Men's Golf - Wichita State Athletics
Ricky Castillo - Golf Australia Magazine - Inside Sport
Florida golfer Ricky Castillo wears necklace in honor of late grandmother | Golf Channel
