Overview
- The championships begin Saturday in Tokyo and run for nine days.
- World Athletics says about 500,000 tickets have been sold with many sessions sold out.
- Race walk and marathon starts have been moved 30 minutes earlier on the opening weekend to reduce heat risk.
- These will be the first worlds to require a gene test for eligibility in women's events, with officials expecting all screenings to be completed despite earlier issues reported in Canada and France.
- Headliners include pole vault record-holder Mondo Duplantis, while Faith Kipyegon, Ryan Crouser and Soufiane El Bakkali are among those pursuing a fifth straight global title, and sprint finals are slated back-to-back.