SEOUL, SOUTH KOREA - OCTOBER 01: Olympische Spiele Seoul 1988; K4/500m; vorne: Birgit SCHMIDT (jetzt FISCHER), Ramona PORTWICH, Susanne WIBERG, Heike SINGER/DDR - Gold - (Photo by Bongarts/Getty Images)

FRANKFURT, GERMANY - AUGUST 30: Sport / Olympia: Ankunft der Olympiateilnehmer in Frankfurt; Kanu: Birgit FISCHER 30.08.04. (Photo by Alexander Heimann/Bongarts/Getty Images)

SYDNEY, AUSTRALIA - OCTOBER 01: OLYMPISCHE SPIELE 2000, Sydney; KANURENNSPORT/KAJAK/K2/500m/FRAUEN; v.l.n.r.: Katrin WAGNER, Birgit FISCHER/GER - GOLD - (Photo by Lutz Bongarts/Bongarts/Getty Images)

SYDNEY, AUSTRALIA - SEPTEMBER 27: OLYMPISCHE SPIELE SYDNEY 2000, Sydney; FRAUEN/KAJAK/FINALE/2er K2; GOLD fuer Birgit FISCHER und Katrin WAGNER/GER (Photo by Alexander Hassenstein/Bongarts/Getty Images)

1 Oct 2000: Birgit Fischer and Katrina Wagner of Germany celebrate their Gold Medal win in the K2 500m final at the Regatta Centre on day 14 of the Sydney 2000 Olympic Games in Sydney, Australia. \ Mandatory Credit: Darren England /Allsport

Nilla Fischer of Sweden (5) scores their first goal during the Women's Group E first round match between Sweden and South Africa during the Rio 2016 Olympic Games at the Olympic Stadium on August 3, 2016 in Rio de Janeiro, Brazil

Makenzie Fischer #11 of United States and Francesca Pomeri #10 of Italy compete during the Women's Water Polo Gold Medal match between the United States and Italy on Day 14 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 19, 2016 in Rio de Janeiro, Brazil.

BEIJING - AUGUST 18: Fanny Fischer, Nicole Reinhardt, Katrin Wagner-Augustin and Conny Wassmuth of Germany compete in the Kayak Four (K4) 500m Women's Heat at the Shunyi Olympic Rowing-Canoeing Park on Day 10 of the Beijing 2008 Olympic Games on August 18, 2008 in Beijing, China.

BEIJING - AUGUST 18: Fanny Fischer, Nicole Reinhardt, Katrin Wagner-Augustin and Conny Wassmuth of Germany compete in the Kayak Four (K4) 500m Women's Heat at the Shunyi Olympic Rowing-Canoeing Park on Day 10 of the Beijing 2008 Olympic Games on August 18, 2008 in Beijing, China.

Nanjing 2014 - Gold medalist Nadine Weratschnig(C) of Austria, silver medalist Martina Satkova(L) of Czech Republic and bronze medalist Birgit Ohmayer of Germany on the podium during the awarding ceremony for the Women's C1 obstacle canoe slalom of Canoe-Kayak event during Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, on Aug. 27, 2014.