The Tokyo Olympic men's 100m champion Marcell Jacobs announced his return in Austria in spectacular fashion. He won the final in 9.67 — a time only behind Usain Bolt's 9.58 at the 2009 Berlin World Championships and 9.63 at the 2012 London Olympics.

However, because the meet faced strong winds, in that day's heats Jacobs had already posted an excellent 9.84 with a +2.3 m/s tailwind, and the eventual final 9.67 was set with a +4.1 m/s illegal tailwind. That means it will not be eligible for the official legal-wind world record lists, but it still stands as the third-fastest 100m ever recorded under any wind condition in athletics history.

Even with the wind assistance, the performance is still remarkable — after all, it's been 14 years since anyone broke 9.70.

With the strong tailwind many athletes posted fast times: British sprinter Romell Glave took silver in 9.76, South African 400m world record holder Wayde van Niekerk was third in 9.83 — an astonishing result. Japan's Yoshihide Kiryu also broke the 10-second barrier, running 9.99 to finish fourth.