Mondo Duplantis successfully set a new pole vault world record of 6.24 meters at the Stade de France, marking his ninth world record. In the realm of triathlons, the mixed relay event took place in the Seine River, which had faced scrutiny over water quality due to its long history of pollution, prompting concerns similar to those surrounding the Potomac River back in the U.S. Despite these concerns, the event proceeded after extensive water quality testing showed acceptable results, thanks to Paris' €1.4 billion cleanup efforts. However, incidents of illness among athletes raised alarms, leading to a Belgian team withdrawal. Athletes and advocates in D.C. are now pushing for the lifting of swimming bans in local waterways, inspired by the successful triathlon events in Paris. The ongoing challenges with water quality amid competing events highlight the complex interplay between urban water safety and athletic competition.