Lundby emerged as the clear winner from the Norwegian national championship, which took place before the 2017/18 season, and her big breakthrough into the world's elite came during the season. On December 1, 2017, she won the first World Cup of the season in Lillehammer ahead of the two Germans Katharina Althaus and Carina Vogt . Before the 2018 Winter Olympics , she won another six competitions and traveled to Pyeongchang as a clear favorite . On February 12, 2018, she lived up to her role as favorite and won the gold medal in ski jumping with a lead of 12.0 points . This made her the successor to Carina Vogt. With the victory in Râșnov on March 4, 2018, Maren Lundby secured the overall World Cup in the 2017/18 season ahead of schedule. On March 11, 2018, she was able to win a jumping from the large hill for the first time on the Holmenkollbakken in Oslo and her ninth World Cup victory of the season.
At the beginning of the 2018/19 season , she already achieved a number of podium places and finally her first World Cup victory of the season on January 13th in Sapporo . After a fourth place in the following event in Yamagata on January 18, she achieved her second win of the season there two days later. This success was the prelude to a series of six victories in a row in Râșnov (two competitions), Hinzenbach (two competitions) and Ljubno . Only Sara Takanashi managed to lay the foundation for the day's victory on February 10 with an excellent jump in the first round of the second competition in Ljubno and thus to end Maren Lundby's winning streak. But the two following competitions on the large hill in Oberstdorf on February 16 and 17 were won again by Maren Lundby.
In a close race for the overall World Cup 2019/20 , Lundby was able to prevail against Chiara Hölzl and thus become the overall winner for the third time in a row. So far, only Adam Małysz has achieved this feat with the men.
Others
"It's all about giving us the same opportunities as men."
- Maren Lundby.
In addition to her achievements as a top athlete, Lundby is considered to be the mouthpiece for the further development of women's ski jumping. Among other things, she advocates a large hill competition at the Olympics, a four-hill tournament for women and ski flying competitions.