Overview

• Repechage rounds introduced for the first time in Olympic track events from 200m to 1500m.
• Athletes who don't qualify in initial heats get a second chance to reach semifinals.
• This format replaces the 'fastest loser' system previously used for qualifying.
• World Athletics aims to increase exposure and excitement with the new structure.
• Events with repechage include hurdles and middle-distance races, but not the 100m or long-distance events.