This article mainly reviews the 17th World Track and Field Championships . This World Championships came to the Arab world for the first time. The venue was held in the capital of Qatar, Doha . Due to the hot weather in the Middle East , the competition was held at the latest in history. It was from September 27 to October 6, 2019, Beijing time. The venue was held at the Caliph Stadium in Doha. This competition is the seventeenth World Track and Field Championships held two years later. There are 49 competition events in this competition, 24 for men's events, 24 for women's events, and 1 mixed event. A mixed 4×400m relay was added. A mixed event was added for the first time. A total of 1,928 athletes participated in the competition. The number of athletes participating was reduced compared with the previous session. The Chinese team sent a delegation of 62 athletes to participate in the competition in 25 events, and the results were higher than the previous session. In the bid for this World Track and Field Championships, Doha defeated Barcelona, Spain and Eugene in the United States to qualify for the competition. This competition broke two world records, and the women's 
00m hurdles and mixed 4 by 400m relay.
The men's sprint arena at the 17th World Track and Field Championships, the United States regained its advantage. In the men's 100m field, the last runner-up American star Coleman was in excellent condition, and he succeeded in revenge with a greater advantage, defeated the last champion American star Gatlin to win the gold medal, and Canadian player De Grass won the bronze; Men's 200m field, the American star Lyles, who was in excellent condition in the year, made great efforts to break through the siege, defeated the third place in the 100m Canadian player De Grass to win the championship, and Chinese player Xie Zhenye entered the final and won the seventh place, creating another historical moment in Chinese track and field; the men's 4×100m field, the men's 100m championship and runner-up and the men's 200m championship and the US relay team led by the men's 200m championship was outstanding, leading all the way and winning the championship; the men's 110m hurricane In the field, the only American player who opened the 13-second cut in the year won the championship. The last runner-up Russian player Shubenkov won the silver again, but the bronze medal appeared two players, and the results were inconsistent. French player Lagarde was the third place in the results, while Spanish player Ortega was the foul of the last champion Jamaican star McLeod . IAAF believed that this behavior seriously interfered with Ortega's game, so he replaced the bronze medal, while Chinese player Xie Wenjun dropped from fourth to fifth place; in the men's 4×400m field, the US relay team led the way, and won the gold medal under the leadership of the men's 400m third place and the men's 400m runner-up runner-up. In the men's 400m arena, the last runner-up Bahamas player Gadinel was outstanding in strength and defeated all the good players with a huge advantage and won the championship; in the men's 400m hurdles, the new generation of 400m hurdles rose, three athletes who opened the 47-second mark won the top three, defending champion Norwegian star Warhol defeated American player Benjamin successfully defended the title, and Qatar local player Samba won the third place.
The women's sprint arena of the 17th World Track and Field Championships, and the United States and Jamaica have obvious advantages. In the women's 100m field, the 33-year-old Jamaican star Fraser led the championship all the way. This time, her fourth Women's 100m World Championships champion continued her legendary career. British player Smith won the silver, and the last runner-up Côte d'Ivoire player Talo won the bronze. At the same time, Fraser also led the Jamaican relay team to defeat the British relay team led by Smith and won the women's 4×100m gold medal. In the women's 100-meter hurdles, American player Ali broke through the siege and won the gold medal in the fiercely competitive women's 100-meter hurdles. The world record holder, American star Harrison, narrowly defeated Jamaican player Williams to win the silver medal; in the women's 400-meter hurdles, American star Mohamed, who was in extremely outstanding form this season, won the championship by breaking his own world record in the game, and another American player, McLaurin, won the runner-up. At the same time, these two also led the US relay team to defeat their opponents with a greater advantage and won the women's 4×400-meter gold medal.In the women's 200m field, British player Smith, who won the runner-up in the women's 100m field, took the lead, defeated his opponent with a greater advantage and won the championship; in the women's 400m field, the last runner-up Bahrain player Nasser scored a third record in history with the Bahamas star Miller, winning the championship, while Miller regretted winning the silver.
mixed 4×400m relay entered the World Series for the first time. There are traditional American relay teams in men and women with 400m. They won the first mixed event championship in the track and field World Championships in a way that breaks the world record. Jamaica won silver and Nasser's Bahrain won bronze.
Men's medium and long-distance running arena at the 17th World Track and Field Championships, Kenya and Ethiopia compete fiercely. In the men's 1500m competition, the last runner-up Kenyan player Cheruyote led the way, defeating all the experts to win the gold medal in the event; in the men's 3000m obstacle course, the last champion Concesrus Kipruto defeated Ethiopian player Kilma in the final decisive battle to win the gold medal, while the last runner-up Moroccan player Baccarri, who was in good shape in the year, fell behind at the last moment and unfortunately won the bronze. men's 5000m arena, the last champion Ethiopian star Edris defeated his compatriot Barega to defend his title; men's marathon arena, in the final decisive battle, Ethiopian player Dessa broke through the siege and won the gold medal. Men's 800m arena, American player Brazer began to make efforts at 500m, defeating all players with a great advantage to win the championship. At the same time, his results broke the World Championship record that had been blocked for 32 years; in the men's 10,000m stadium, the last runner-up Uganda player Cheputgai defeated Ethiopian player Kojelcha in the final sprint to win the championship.
Kenya has certain advantages in the women's middle and long-distance running arena of the 17th World Track and Field Championships. In the women's 5,000-meter field, defending champion Kenyan star Obiri led the way and withstood the sprint of his teammate Kipkembey and won the championship. Her results also set a new World Championship record; in the women's marathon field, Kenyan player Chep Engtic defeated all the good players and won the gold medal; in the women's 3,000-meter obstacle course, Kenyan player Chep Koich, who was in excellent condition in the year, led the lead throughout the whole process, defeating defending champion American player Koben with a record breaking the tournament. In the women's 800m field, Ugandan player Nakay surpassed the creator of the year's best result at the last moment, and American player Wilson won the gold medal, and Wilson was finally surpassed by his compatriot Rogers , winning only the bronze medal; in the women's 1500m field, Dutch star Hassan led the way, leading all the way to the finish line, winning the gold medal with a record-breaking result, defending champion Kenyan star Kipuyegan won the silver medal, and Hassan also won the women's 10,000m gold medal. She gradually left her main opponent, Ethiopian star Gidedi, and achieved the first place in the last two laps of the sprint of the 10,000m game.
The men's jumping arena at the 17th World Track and Field Championships, and the United States has certain advantages. men's pole vault arena. American star Kendricks won the bronze in the duel with Swedish star Duplantis . Both of them passed by 5.97 meters. However, due to a passing at 5.92 meters, Kendricks defeated his opponent to defend his title. The last runner-up Polish player Lisek won the bronze; in the men's triple jump field, American star Taylor defeated his compatriot Clay again to achieve three consecutive championships in this event. In the men's high jump arena, the defending champion Qatari star Balhim , who fought at home, crossed the height of 2.37 alone, withstood the impact of two Russian players and achieved the title defense; in the men's long jump arena, Jamaican star Gael performed well, defeating all the famous players and winning the gold medal, the biggest popular Cuban young player Echevaria only won bronze.
The women's jumping arena of the 17th World Track and Field Championships, Russia has certain advantages.In the women's high jump arena, Russian star Rasitskoni defeated Ukrainian player Mahuchik in one straightforward way with all the heights they have crossed, and Russian star Hidolova defeated all the famous players to win gold medals. The last runner-up American player Morris won silver again, and the last champion Greek star Stefanidi won bronze. In the women's long jump arena, the favorite German player Mihanbo jumped out of 7.30 meters, surpassing Qunfang to secure the gold medal; in the women's triple long jump arena, the evolution of Venezuelan star Rojas defeated his opponent with a huge advantage to defend his title, and the last runner-up Colombian star Ibaguen won the bronze.
The men's throwing field of the 17th World Track and Field Championships is fierce and exciting. men's shot put arena, and all the famous players staged a strong competition. The defending champion New Zealand player Walsh was careless and lost Jingzhou only won the bronze medal when he threw 22.90 in the first throw. American player Crowther also threw 22.90 in the last throw, but he won the silver medal in the competition of sub-optimal results. The last runner-up American player Kovax also threw 22.91 in the last throw, breaking the World Championship record, surpassing the heroes, winning the gold again after four years. The competition between the three is very fierce. This is also the top three men's shot put game with the smallest gap in history. The men's discus field, the last runner-up Swedish player Starr defeated Jamaican player with absolute strength. Dex successfully won gold; in men's hammer , Polish star Fayedk, who had already won three consecutive championships, won the championship again, achieving a terrifying four consecutive championships in the event, but in the allocation of bronze medals, a controversial penalty occurred. The Polish delegation believed that Hungarian player Halas had a foul for the first shot of the best score. The IAAF confirmed the foul after watching the replay, but believed that this also affected Halas' attitude to the subsequent shots. Therefore, in the principle of fair competition, the IAAF awarded bronze medals to both athletes, which was the second controversial penalty for this World Championships; in men's javelin , Grenada player Peters performed well, narrowly defeating Estonian player Kilt to win gold, and the last champion German star Vite won the bronze medal.
The women's throwing field of the 17th World Track and Field Championships, and all the masters competed at the peak. women's shot put arena, the only Chinese star who threw more than 20 meters in this year Gong Lijiao was better in the duel with Jamaican player Dodd, narrowly defeated his opponent and successfully defended his title. German star Schwartiez picked bronze; in the women's discus field, Cuban player Perez threw more than 69 meters away in the fifth, defeating his compatriot Caballero to win gold, the last champion Croatia Two players Perkovic took bronze; in the women's tie ball field, American player Price beat Qunfang to win the championship, the last runner-up Chinese star Wang Zheng took bronze; in the women's javelin field, Australian player Babel defeated two Chinese players in the final throw to win gold, Chinese player Liu Shiying and the last third Chinese player Lu Huihui won two and three points.
The all-around and racing stadium of the 17th World Track and Field Championships, Japan and China have certain advantages. Men's decathlon arena, German player Kaor defeated Estonian player Uber and several medal owners Canadian player Werner won gold; women's heptathlon arena, British player Thompson defeated defending champion Belgian player Thiam won gold. In the men's 20-kilometer race walk, Japanese athletes Shanxi Li and won gold in the hot weather; in the men's 50-kilometer race walk, Japanese star Yusuke Suzuki defeated all the experts and won the championship after the transfer; in the women's 120-kilometer race walk, Chinese athletes won the top three, and the Chinese star Liu Hong won gold again after four years, Qiyang Shijie and Yang Liujing won two and three respectively; in the women's 150-kilometer race walk, Chinese athletes won gold and silver, Liang Rui won gold and silver, Li Maocuo won gold and silver.
Dalila Mohammed
Donovan Brazeer
Gong Lijiao
Liu Hong
Liu Rui
Liu Rui
The 17th World Track and Field Championships, the United States firmly ranked first, and its advantages are very obvious. The advantages in sprinting and men's jumping make the United States ranked first with a huge advantage. Kenya, which has excellent medium and long-distance running, ranks second, and Jamaica, which has an advantage in women's sprinting, ranks third. This time, the Chinese track and field team ranked fourth in three gold, three silver and three bronzes, which is the second best result in history. These medals all come from traditional strengths such as women's throwing and women's race walks. Compared with the previous session, the results have improved, but they have not made breakthroughs in more events, and the performance of men's events is still not satisfactory. Ethiopia, which is excellent in middle and long-distance running, ranks fifth, the United Kingdom ranks sixth, and Russia, which has the advantage of women's jump, ranks seventh.
