Van Es is the Dutch record holder for the 10 km road race.Diane Van Es competed internationally at youth level, winning the 3000 metres at the 2015 European Youth Olympic Festival held in Tbilisi,[3] and placing 12th in that event at the 2017 European Under-20 Championships in Grosseto two years later.[4] Van Es established herself in the senior ranks with a 5000 m win at the 2020 Dutch Athletics Championships.[5] On 29 May 2021, she set a 5000 m personal best of 15:07.52 during the Next Generation Athletics meeting in Nijmegen, which qualified her for the postponed 2020 Tokyo Olympics.[6][7] She won the silver medal in the 10,000 metres at the 2024 European Championships in Rome on 11 June 2024, running a personal best time of 30:57.24.