California high schools will not begin basketball season until at least March 2021 Posted Aug 1, 2020 The California Interscholastic Federation announced that the high school basketball season will not begin until at least March 2021. California high school sports will not be played until the winter and all three seasons of high school sports in California will be moved to later in the 2020-2021 school year due to the coronavirus pandemic. (Zag's Blog)