KATIE HAS DONE IT 🏆 Katie Boulter smashes back after losing the first set to grab her 𝐟𝐢𝐫𝐬𝐭 𝐖𝐓𝐀 𝟓𝟎𝟎 title in San Diego against Marta Kostyuk 5-7 6-2 6-2 👏🏆 #lta #wta #tennis #sandiegoopen