Diablo at The Golf Club at Brentwood

The Golf Club at Brentwood's Diablo course is a Ted Robinson Sr. design located in the East Bay community of Brentwood, California, roughly 50 miles east of San Francisco. Robinson, who practiced primarily in California and the western United States from the 1950s through the 1990s, developed a reputation for incorporating water features into his layouts, and his work at Brentwood reflects this signature approach within the context of the region's rolling terrain and Mediterranean climate.

The course occupies land characteristic of Contra Costa County's inland valleys, where summer heat and golden grasses contrast with the cooler, greener conditions of winter and spring. Robinson's routing takes advantage of elevation changes and natural contours, with water hazards—lakes and streams—appearing throughout the round as both strategic and visual elements. The design emphasizes shot placement and course management, asking players to navigate hazards while accounting for the firm, fast conditions common to Northern California's inland courses during much of the year.

Brentwood itself sits in an agricultural region known for orchards and vineyards, and the course setting reflects this rural character even as residential development has grown around it. The Golf Club at Brentwood operates as a private facility, serving members from the surrounding East Bay communities. Robinson's design here represents his mature style—functional, water-conscious in layout if not always in maintenance, and tailored to the recreational preferences of country club golfers in California's interior valleys.