Under the regulations, any reaction quicker than 0.10 seconds counts as a false start. That limit has been set as the science suggests the human body cannot react faster than that; any time quicker is deemed to be an athlete anticipating the gun, rather than reacting to it.

Lyles will face competition from 200m Olympic champion Letsile Tebogo, Jamaica’s Kishane Thompson, who was the runner-up in the 100m final in Paris, as well as Oblique Seville,

The second day of the 2025 Track And Field World Championships is here live from Tokyo. Follow along for live updates, breaking news and more.

India's Parul Chaudhary is in action in her women's 3000m steeplechase event. Later in the day, Mondo Duplantis is set to take the stage.

Melissa Jefferson-Wooden stuns her competition at the World Athletics Championship in Tokyo, winning a gold medal and securing a new record

They ran for more than two hours and needed a photo finish to determine the winner, with Alphonce Simbu edging out Amanal Petros in the men’s marathon at world championships in a race decided by a sprint down the track at the finish.

Simbu and Eritrea-born Petros were both clocked at 2hr 09min 48sec in the most dramatic of endings for the longest event of the world championships in the Japanese capital. It was the closest men’s marathon ever at a world championships.

Oblique Seville scorched to the world 100 metres gold in a personal best 9.77 seconds on Sunday, leading a Jamaican 1-2 ahead of Olympic silver medallist Kishane Thompson, second again in 9.82. Defending champion Noah Lyles took bronze in a season's best 9.

Jakob Ingebrigtsen suffered a shock exit in the 1500m heats at the World Athletics Championship in Tokyo. The two-time Olympic gold medallist has a huge collection medals and 1500m world

From Noah Lyles vs Letsile Tebogo to Nafi Thiam vs Anna Hall, these are the pulsating match-ups to look out for

After a longer than usual leadup, the 2025 World Athletics Championships is set to begin this weekend. From September 13 through September 21, the global meet will bring the best track and field athletes together for the ultimate showdown in Tokyo.

This summer, teen running sensation Cooper Lutkenhaus made the US team to compete in Tokyo with a performance making “high school LeBron look like nobody.”