Riley Grigsby

Riley James Grigsby (born December 29, 1999) is an American basketball player for the Barangay Ginebra San Miguel of the Philippine Basketball Association (PBA).

Early life and education Riley Grigsby was born on December 29, 1999, in San Jose, California. His father, Alfred was a professional basketball player who plied his trade in Japan. He attended the Archbishop Mitty High School and later the Seattle University on a full Division I scholarship. He graduated from Seattle University in 2022 with a degree in communications.

Career College Grigsby played for the Seattle Redhawks in the Western Athletic Conference.

Club After graduating, Grigbsy initially competed in the FIBA 3x3 Pro Circuit before shifting back to the standard 5x5 to suit up for AB Contern of the Luxembourg Basketball League for the 2024–25 season. He then joined the NBA G League to play for the Santa Cruz Warriors and later the Sioux Falls Skyforce.

In July 2026, he joins the Barangay Ginebra San Miguel of the Philippine Basketball Association as a temporary replacement for injured import, Justin Brownlee for the 2026 PBA Governors' Cup.