World Athletics chief Sebastian Coe gave Tokyo Olympic organizers high marks for the marathon test event staged in Sapporo on Wednesday, saying they were able to deliver both on the operation of the race and on their COVID-19 countermeasures.

The Sapporo Challenge Half Marathon 2021 was held on Wednesday as a dress rehearsal for the marquee Olympic event.

Six international athletes participated in the event and had to go through stringent testing protocols before and after entering Japan.