Rachel Klamer, a professional triathlete hailing from the Netherlands, has represented her country twice in the Olympic Games. In 2009, she achieved a remarkable third-place finish at the Junior World Championships, marking her entry onto the national and international stage. The preceding year, Rachel showcased her talent by securing victory in both the National Triathlon Championships (Junior) held in Aalsmeer and the Duathlon Championships (Junior) in Oss. Demonstrating her ambition, she began competing in the Elite category at the age of 17 and achieved a commendable 10th place in the British Elite Super Series.

Rachel's achievements continued to soar, as evidenced by her silver medal win in the women's triathlon event at the inaugural European Games held in Baku, Azerbaijan, in 2015. Subsequently, she attained significant accomplishments at the highest level of competition. Notable among these accomplishments is her triumphant performance at WTS Abu Dhabi in 2018. In 2019, Rachel secured fourth-place finishes in both WTS Hamburg and the Lausanne Grand Final, consolidating her standing among the sport's elite. She has also garnered multiple podium finishes in the Super League Triathlon Series, further cementing her status as a top-tier triathlete.