On Friday the 20-year-old Bednarek shocked everyone when he clocked the fastest wind-aided 200m time in world history of 19.49 ( wind +6.1) in the 200m prelims.
But on Saturday Bednarek made more headlines. He won the 200m final in 19.82 seconds against the -0.8m/s headwind and then took the 400m final in 44.73 seconds. With his 19.82 and 44.73, Kenny Bednarek became just the second man in history to break 20 seconds for 200m and 45 seconds for 400m on the same day.