Marissa Papaconstantinou Wins First World Para Athletics Medal for On
Canadian Sprinter claims bronze medal in the T64 100m final
New Delhi, India, October 1, 2025 — On athlete Marissa Papaconstantinou (CAN) has won a bronze medal in the women’s T64 100m final at the 2025 World Para Athletics Championships. This marks the first World Para Athletics medal in the company's history.
Papaconstantinou, a three-time Paralympian and Canadian record holder who joined On in June 2025, clocked a time of 13.06 seconds to secure the third-place finish.
The only athletes to finish ahead of the Canadian sprinter were the world record holder, Fleur Jong (12.29s), and Marlene van Gansewinkel (12.86s), both of the Netherlands.
Papaconstantinou’s performance came after a third-place qualification in her heat earlier in the day, and after a traffic jam on the way to the stadium had left athletes with just minutes to prepare for their race.
"We are incredibly proud of Marissa’s performance in New Delhi," said Kevin Quadrozzi, Athlete Manager at On. "Winning a medal is always a significant achievement, especially in tricky conditions like the ones Marissa faced. We're excited to watch what she does next, as she focuses on the 200m event in New Delhi."
The bronze medal adds to Papaconstantinou’s impressive list of accomplishments, including a bronze in the same event at the 2023 World Para Athletics Championships and another at the Tokyo 2020 Paralympic Games.
Papaconstantinou will be looking to add to her medal collection in the women's T64 200m event on Sunday, October 5th.
About On
On was born in the Swiss Alps in 2010 with the mission to ignite the human spirit through movement – a mission that still guides the brand today. Fifteen years after market launch, On delivers industry-disrupting innovation in premium footwear, apparel and accessories for high-performance running, outdoor, training, all-day activities and tennis. On’s award-winning CloudTec® and LightSpray™ innovation, purposeful design and groundbreaking strides within the circular economy have attracted a fast-growing global fan base – inspiring humans to explore, discover and Dream On.
On is present in more than 80 countries globally and engages with a digital community on www.on.com.