 Kubot and Zeballos defeated Aljaz Bedene and Maximilian Marterer in the first round and Fabrice Martin and Jeremy Chardy in the second round.In his fifth career Australian Open doubles quarterfinal Kubot and his partner lost to Ryan Harrison and Sam Querrey in three sets.At the 2019 BNP Paribas Open sixth seeds Lukasz Kubot and Marcelo Melo rallied past Wesley Koolhof and Stefanos Tsitsipas in first round and defeated Nick Kyrgios and Taylor Fritz to reach the quarterfinal.