Thursday's semi-finals included the 1500m race, in which Charel Grethen also competed.
The Luxembourger, about whom you can read more in our Duchy Dozen series, surprised us all by qualifying for the finals of the men's 1500m competition.
With 3 minutes, 32 seconds and 86 hundredths, which is almost 4 seconds quicker than his national record, he finished 7th in the semi-finals. His old national record was 3 minutes, 36 seconds and 75 hundredths.
He was not in the top 5 runners in the semi-finals, but he still managed to secure a place in the final on Saturday.
In 1952, the Luxembourger Josy Barthel won the gold medal for 1500m at the Helsinki Olympics.