History of the San Diego Open 2021 Professional tennis retuned to San Diego as The San Diego Open which was held as an ATP 250 level event. 2022 The San Diego Open was held as both a WTA 500 & ATP 250 Event. 2023 The San Diego Open was held as a WTA 500 Event. 2024 The San Diego Open was held as a WTA 500 Event. 2025 The San Diego Open was held as an ATP Challenger 100 Level Event.
