Katerina Siniakova managed to wrap up the 2021 season with outstanding results: she won the Akron WTA Finals title in doubles & landed on the first spot in the doubles ranking.  Together with Barbora Krejcikova she pulled off an undefeated week in the doubles in Guadalajara, ending this superb year with a title at the prestigious year-ending championships. The Czechs defeated No.3 seeds Hsieh Su-wei and Elise Mertens 6-3, 6-4, in an hour and 18 minutes, to claim their first WTA Finals doubles championship.  More titles to come in the next season!