Maret Grothues

Maret Balkestein-Grothues, née Maret Grothues (, born 16 September 1988) is a Dutch volleyball player who plays as a wing spiker. She is a member of the Netherlands women's national volleyball team, and is the current team captain. On 6 May 2021 she signed for the Greek powerhouse Panathinaikos.

Grothues started playing volleyball with the Dutch club Krekkers in 1996, inspired by the male national team winning the Olympic gold in Atlanta 1996. She made her international debut in the Dutch national team at the opening match of the Montreux Volley Masters against Cuba in June 2008. Grothues did not play in the national team in 2014, due to an Achilles heel injury. At the 2010 World Championship she won the "best server" trophy. She played at the European Championships in 2012, 2013 and 2014. In 2015, she was promoted to team captain prior to the 2015 European Games in Baku, Azerbaijan. As of 2016 she has 244 caps.

During the 2016 Summer Olympics, where the Dutch women made their Olympic return after 20 years, Balkestein-Grothues injured her ankle during the second game of the group stage. Thus she only returned for the knockout rounds, seeing limited minutes as the Netherlands finished fourth.

Individuals

 * 2010 FIVB World Championship "Best Server"
 * 2021–22 Greek Volleyball League MVP

Clubs

 * 2008–09 Dutch Volleyball League Gold medal with cup.svg Champion, with DELA/Martinus Amstelveen
 * 2008–09 Dutch Volleyball Cup Simple gold cup.svg Winner, with DELA/Martinus Amstelveen
 * 2009–10 Dutch Volleyball League Gold medal with cup.svg Champion, with TVC Amstelveen
 * 2009–10 Dutch Volleyball Cup Simple gold cup.svg Winner, with TVC Amstelveen
 * 2013–14 French Volleyball League Gold medal with cup.svg Champion, with RC Cannes
 * 2013–14 French Volleyball Cup Simple gold cup.svg Winner, with RC Cannes
 * 2014–15 French Volleyball League Gold medal with cup.svg Champion, with RC Cannes
 * 2016–17 Turkish Volleyball League Gold medal with cup.svg Champion, with Fenerbahçe
 * 2016–17 Turkish Volleyball Cup Simple gold cup.svg Winner, with Fenerbahçe
 * 2021–22 Greek Volleyball League Gold medal with cup.svg Champion, with Panathinaikos
 * 2021–22 Greek Volleyball Cup Simple gold cup.svg Winner, with Panathinaikos
 * 2022–23 Greek Volleyball League Gold medal with cup.svg Champion, with Panathinaikos
 * 2023–24 Greek Volleyball League Gold medal with cup.svg Champion, with Panathinaikos

Personal
Maret Grothues married the Dutch hockey player Marcel Balkestein on 5 July 2014 and became Maret Balkestein-Grothues, following Dutch convention.