Mathias Christiansen

Christiansen was born on 20 February 1994, in Bornholm, Denmark, where his journey into badminton began at a young age in the town of Allinge. His introduction to the sport was quite serendipitous; he started playing after his schoolteacher encouraged him to attend badminton practice.^[1] Christiansen's talent quickly became evident, leading him to compete at the international level as a teenager, including a notable debut at the 2011 Scottish International. His early career reached a significant milestone in 2013 when he moved to Copenhagen to join the Danish national team, marking his transition into the professional circuit where he would eventually become a key figure in both men's and mixed doubles.^[3]

In 2017, Christiansen and Daugaard secured a bronze medal in the men's doubles at the European Championships and reached a career-high ranking of No. 19 in that category.^[4] However, his profile rose significantly in late 2017 when he paired with the legendary Christinna Pedersen. This duo quickly became a global powerhouse, reaching back-to-back finals at the China and Hong Kong Open.^[5][6] In 2018, the pair captured the India Open title and earned a silver medal at the European Championships in Huelva, Spain.^[7][8] Their consistent performance at elite tournaments, including a runner-up finish at the Korea Open,^[9] propelled Christiansen to a career-best world ranking of No. 4 in October 2018. Additionally, he helped the national team secure a bronze medal at the 2018 Thomas Cup in Bangkok.

Following Pedersen's retirement from international play in early 2019, Christiansen began his current partnership with Alexandra Bøje.^[10] Making their debut at the Canada Open in July, they reached the podium finishing as runners-up in the Hungarian International in November, and then claimed two titles in the Irish and Scottish Open.^[11][12]

Christiansen helping Denmark secure gold at the 2021 European Mixed Team Championships and contributing to back-to-back bronze medals at the 2020 and 2022 Thomas Cup finals. On the individual circuit, Christiansen and Bøje won the bronze medal at the 2021 European Championships.^[13] They also captured titles at the 2020 SaarLorLux Open and the 2021 Orléans Masters,^[14][15] reached the finals of the 2021 Swiss and French Open,^[16][17] and made his Olympic debut at the Tokyo 2020 Games.^[2] His consistency against the world's best culminated in a career-high world ranking of No. 8 in October 2022.

In 2023, Christiansen and Bøje were in top form, capturing titles at the Spain Masters and the Singapore Open,^[18][19] and securing a bronze medal at the European Games in Poland.^[20] This momentum continued into early 2024 as they reached the final of the European Championships in April, earning a silver medal,^[21] and were runners-up at the Canada Open in July.^[22]

However, just days before the 2024 Paris Olympics, for which they had qualified, Christiansen announced his withdrawal from the Games. The decision followed a series of three unintentional administrative errors in reporting his "whereabouts" to Anti-Doping Denmark over a 12-month period. To avoid disrupting the Danish Olympic team with the pending investigation, Christiansen chose to step down, which eventually resulted in a one-year suspension that lasted until July 2025.^[23]

The year 2025 marked a triumphant return to the professional circuit for Christiansen after completing a one-year suspension related to anti-doping whereabouts reporting.^[24] Reunited with his longtime partner, Alexandra Bøje, the pair made an immediate impact by winning the Macau Open in their very first tournament back in July.^[25] They carried this momentum into the BWF World Championships in Paris, where they pulled off a massive upset against the world No. 1 seeds, Feng Yanzhe and Huang Dongping.^[24] Throughout the fall, Christiansen and Bøje continued their high-level play, securing another title at the Hylo Open,^[26] and an additional victory at the Indonesia Masters Super 100.^[27] By the end of 2025, Christiansen had successfully rehabilitated his world ranking from outside the top 150 back toward the elite tier.^[28]

The pair has maintained high-level consistency in 2026, notably reaching the finals of major tournaments such as the India Open and the Indonesia Masters in January.^[29][30] In March, they secured a runner-up finish at the Orléans Masters in France.^[31]