Katie Boulter aiming to break top 30 after reaching San Diego Open final

• British No 1 defeats Emma Navarro in semi-final
• Boulter will play Ukraine's Marta Kostyuk in final

Katie Boulter vowed to keep having fun on the court after beating Emma Navarro to reach her biggest career final at the San Diego Open.

The British No 1, who claimed her maiden WTA Tour title on grass in Nottingham last summer, will bid for the trophy at a WTA 500 tournament for the first time thanks to a 6-3, 6-1 win.