Three days after her gold, she won silver in the second 1–2 ton race at the 1900 Paris Games, becoming the first woman to earn more than one Olympic medal.
On May 25, 1900, Hélène de Pourtalès again took to the water aboard the Lérina for the second race of the 1–2 ton class at the Paris Olympics. This time, the Swiss crew finished in second place, earning a silver medal.
This result made Hélène de Pourtalès the first woman in Olympic history to win multiple medals, adding a silver to the gold she had won just three days earlier. At a time when women's Olympic participation numbered barely two dozen athletes total, achieving not one but two podium finishes in the same Games was an extraordinary distinction, cementing her status as a pioneering figure in the earliest era of women's Olympic competition.
Because sailing crews at the time were not segregated by sex, Hélène's participation alongside her husband and other male crew members was possible in a way that would have been unthinkable in most other Olympic sports of the period. Her second medal underscored that her earlier triumph was no fluke, but the product of genuine sailing skill and experience gained through years of yachting with her husband's family on Lake Geneva and along the French Riviera. Her dual-medal performance at a single Games remains a remarkable historical marker, often cited alongside her gold medal as proof of her standing as the era's most successful female Olympian.