The 2019 IAAF World Athletics Championships (Arabic: بطولة العالم لألعاب القوى‎) was the seventeenth edition of the biennial, global athletics competition organized by the International Association of Athletics Federations (IAAF). It was held between 27 September and 6 October 2019 in Doha, Qatar, at the renovated multi-purpose Khalifa International Stadium,[2] but reduced to 21,000 available seats. Nearly 2000 athletes from 209 nations competed in 49 athletics events over the ten-day competition, comprising 24 events each for men and women, plus a mixed relay.