Errani, the No. 10 seed, booked her spot with a 7-6 (5), 6-3 victory against No. 6 Angelique Kerber; Vinci, the No. 20 seed, joined her with a 6-1, 6-4 upset of No. 2 Agnieszka Radwanska.
Krumm hit 15 winners, two more than 31-year-old Schiavone, but was guilty of 35 unforced errors as the 14th seed booked a second round encounter with Bulgaria's Tsvetana Pironkova, who came from a set down to defeat Yanina Wickmayer of Bulgaria 3-6 6-0 6-3.
Kveta Peschke of the Czech Republic and Katarina Srebotnik of Slovenia, the No8 seeds, booked their place in the final of the women's doubles with a convincing 6-3, 6-1 victory over the No4 seeds, Sania Mirza of India and Elena Vesnina of Russia.
These seed-saving revolutionaries introduced us to the Suzanne Ashworth's excellent book Seed to Seed, which we hope to draw heavily upon next summer.
Fourth seed Robin Soderling booked his place in the semi-finals of the Paris Masters with a 7-5 6-4 defeat of American Andy Roddick on Friday.
Shortly after the appearance of the article that seeded the book, Foreign Affairs magazine called upon a group of writers to respond to Huntington's thesis.
Third seed Lleyton Hewitt booked his place in the second round of the US Open with a straight-sets victory over Spain's Albert Costa.
In my good years, I back up all that I write on the labels in a seed-sowing book or in notes on my phone; it's one of the most useful things I do.
This prompted a much shared Times Op-Ed that became the seed of his book.
