Answer
The answer is 2016. Jamaican sprinter Usain Bolt holds the world record for the men's 100 meters, with a time of 9.58 seconds set in 2009. South African athlete Wayde van Niekerk specializes in the 400 meters and has not competed in the 100 meters since 2017, with his personal best being 9.98 seconds achieved in 2016.