Czech top seeds Barbora Krejcikova and Katerina Siniakova successfully defended their Australian Open women’s doubles crown on Sunday to extend their dominant Grand Slam streak.

The pair outgunned Japan’s 10th-seeded Shuko Aoyama and Ena Shibahara 6-4, 6-3 to post their 24th straight win at a major after triumphing last year at the Australian Open, Wimbledon and US Open.