The World Athletics U20 Championships is a biennial world championships for the sport of athletics organised by the World Athletics, contested by athletes in the under-20 athletics age category (19 years old or younger on 31 December in the year of the competition.
The South American U18 Championships in Athletics is a biennial athletics event organized by "Confederación Sudamericana de Atletismo" (CONSUDATLE), the South American area association of the International Amateur Athletic Federation (IAAF). Starting in 1973, the competition was open for athletes under-17 in the early years. Since 2000 the international age group definition has applied. Up until the 2016 edition the competition was known as the South American Youth Championships in Athletics. The tournament is open for athletes from CONSUDATLE member federations. Athletes from IAAF members of other geographical areas may be invited. However, they are not considered in the classification.
In 2016, the foremost athletics events will be staged at the Olympic Games in Rio de Janeiro. The two other major global level competitions in 2016 are the World Indoor Championships and World Half Marathon Championships.
The Czechoslovak Athletics Championships was an annual outdoor track and field competition organised by the Czechoslovakia Athletics Association, which served as the national championship for the sport in Czechoslovakia.
In 2018, no world outdoor athletics championships was held. Major events held during the year included the 2018 IAAF World Indoor Championships, 2018 IAAF Continental Cup, 2018 IAAF World Race Walking Team Championships, and 2018 IAAF World Half Marathon Championships.
The East German Athletics Championships was an annual outdoor track and field competition organised by the East German Athletics Federation, which served as the East German national championships for the sport. The three- or four-day event was held in summer months, varying from late June to early September, and the venue changed on an annual basis.
The Dutch Athletics Championships is an annual outdoor track and field competition organised by the Royal Dutch Athletics Federation, which serves as the national championship for the sport in the Netherlands. It is typically held as a two- or three-day event in the Dutch summer, ranging from late June to early August. The venue of the championships varies, though Amsterdam's Olympic Stadium has been a regular host.
The West German Athletics Championships was an annual outdoor track and field competition organised by the German Athletics Association, which served as the West German national championships for the sport. The two- or three-day event was held in summer months, varying from late June to early August, and the venue changed annually.
The Nordic Athletics Championships was an international athletics competition between Nordic countries – Finland, Sweden, Norway, Denmark and Iceland. It was held on three occasions, in 1961, 1963 and 1965.
The USATF U20 Outdoor Championships, formerly known as the USA Junior Outdoor Track & Field Championships, is an annual outdoor track and field competition organized by USA Track & Field (USATF) which serves as the national championship for American athletes aged under 20. The competition is also used for American national team selection for the IAAF World U20 Championships in even-numbered years and the Pan American U20 Athletics Championships in odd-numbered years.
In 2019, the main athletic events were the 2019 IAAF World Cross Country Championships, the 2019 IAAF World Relays, and the 2019 World Athletics Championships.
The Swiss Athletics Championships is an annual outdoor track and field competition organised by the Swiss Athletics Federation, which serves as the national championships for the sport in Switzerland. The two-day event is typically held in mid-summer and the venue varies on an annual basis. It is open to adults of all ages and is thus referred to as the senior or élite championships.
The Romanian Athletics Championships is an annual outdoor track and field competition organised by the Romanian Athletics Federation, which serves as the national championship for the sport in Romania.
The South African Athletics Championships is an annual outdoor track and field competition organised by the Athletics South Africa, which serves as the national championship for the sport in South Africa.
The Belarusian Athletics Championships is an annual outdoor track and field competition organised by the Belarusian Athletic Federation, which serves as the national championship for the sport in Belarus.
The Indian National Open Athletics Championships is an annual outdoor track and field competition organised by the Athletics Federation of India, which serves as the national championship for the sport in India. First held in 1961, it is one of four major national events in track and field, alongside the annual Indian Inter State Senior Athletics Championships and Federation Cup Senior Athletics Championships, as well as the biennial National Games of India.
The Croatian Athletics Championships is an annual outdoor track and field competition organised by the Croatian Athletics Federation, which served as the national championship for the sport in Croatia.
United States
Norway 
Ethiopia 
Finland 
Kenya 
Australia
Portugal
