John Thurman Field is a stadium in Modesto, California. It is primarily used for baseball, and is the home field of the Modesto Nuts minor league baseball team of the California League. It was built in 1955 and holds 4,000 people. It was later named for California State Assemblyman John Thurman, from Modesto. There has been talk about building a new stadium around the general area, but no decision has been reached.