Daria Kasatkina has routed former world No.1 Angelique Kerber 6-0 6-2 to reach the semi-finals of the BNP Paribas Open.

The 20-year-old Russian needed just 58 minutes to brush aside the German on Thursday.

Kasatkina hasn’t dropped a set in four matches at Indian Wells, knocking out US Open champion Sloane Stephens and world No.2 Caroline Wozniacki.

Kasatkina will play either No.8 seed Venus Williams or No. 27 Carla Suarez Navarro of Spain in the semis. Their game begins at 11am AEDT on Friday.

Kerber never managed a break point against Kasatkina’s serve. The Russian connected on 82 per cent of her first serves, winning 22 of 32 first-serve points.

Besides Stephens and Australian Open winner Wozniacki, Kasatkina has beaten the other current Grand Slam titleholders in the past year: French Open winner Jelena Ostapenko and Wimbledon champion Garbine Muguruza.