Anett Kontaveit powered past third-seeded Karolina Pliskova 6-4, 6-0 to lead the way into the semi-finals of the season-ending WTA Finals at Guadalajara on Friday. 

The eighth-seeded Estonian notched her 12th straight WTA match win as she assured herself of finishing in the top two of her group in the round-robin phase. Spain’s Garbine Muguruza kept her hopes of advancing from the same group alive with a 2-6, 6-3, 6-4 victory over reigning French Open champion Barbora Krejcikova.