Britain’s Matthew Hudson-Smith and American Quincy Hall successfully navigated their Olympic 400m semifinal heats on Tuesday, positioning themselves as favorites for the final. However, Grenada’s Kirani James, a triple Olympic medalist, delivered a potent warning shot, asserting his presence in the race for gold. While Hudson-Smith and Hall are considered the frontrunners, James showcased his formidable abilities with a blistering 43.78-second run, the fastest of the night and his best time this season. Entering the semifinals, Hudson-Smith and Hall were the only athletes in the world to have broken the 44-second barrier this year. However, both James and Zambia’s Muzala Samukonga joined the elite club, with Samukonga achieving a national record of 43.81 seconds. Hudson-Smith maintains the world lead with a time of 43.74 seconds this year. His quest to become the first British athlete in a century to secure 400m gold appears to be on track after comfortably winning his heat, easing up in the final stretch to conserve energy for Wednesday’s final. Hall, on the other hand, took the lead midway through his heat and crossed the finish line in 43.95 seconds, comfortably ahead of Trinidad and Tobago’s Jereem Richards, who also secured his place in the final. The United States will be represented by three athletes in the final: Michael Norman and Christopher Bailey join Hall. James, at 31 years old, is an Olympic veteran, having won gold in London, silver in Rio, and bronze in Tokyo. The top two finishers in each of the three heats, along with the next two fastest overall, secured their spots in the final, scheduled for Wednesday at 9:20 p.m. local time. The 400m final promises to be an intense battle as the athletes strive for Olympic glory.