Caio Oliveira de Sena Bonfim (born 19 March 1991) is a Brazilian racewalker. In the 20 km walk, he is the reigning World Champion, having won the gold medal at the 2025 World Athletics Championships. He was a silver medalist at the 2024 Olympic Games. He also finished 4th at the 2016 Olympic Games. His mother, Gianetti Bonfim, was also an international racewalker for Brazil.Caio Bonfim, o "Messias anunciado" por Gianetti Sena, é penta na Copa Brasil . Brasil2016. Retrieved on 2016-09-25.

Career He competed in the 20 km walk at the 2012 Summer Olympics, where he placed 39th.

In 2013 he won bronze at the Pan American Race Walking Cup.Catálogo Atleta Caio Bonfim

In May 2015 he won silver at the Pan American Race Walking Cup.

At the 2015 Pan American Games, he won a bronze medal in the Men's 20 kilometres walk with a time of 1:24:43. He broke a 24-year fast without Brazil winning medals in this event at the Pan American Games, since Marcelo Palma's bronze in 1991.

At the 2015 IAAF World Championships, he finished 6th with a time of 1:20:44, equaling Brazil's best result in the sport at World Championships. Bonfim repeated the position of Sérgio Galdino from Santa Catarina at the World Championship in Stuttgart (Germany), in 1993.

At the 2016 Summer Olympics in Rio de Janeiro, Bonfim competed well. In the Men's 20 kilometres walk, he finished 4th with a time of 1:19:42, a Brazilian record, just 5 seconds behind the bronze medalist. In the Men's 50 kilometres walk, he finished 9th, again breaking the Brazilian record with a time of 3:47:02.

At the 2017 World Championships held in London, Bonfim won the bronze medal, the first for a Brazilian in this sport, in the 20 km walk, again lowering his Brazilian record, with a mark of 1:19:04.

At the 2019 Pan American Games held in Lima, he won the silver medal in the 20 km walk, just 7 seconds behind Ecuadorian Brian Daniel Alvez. He also finished 4th in the 50 km walk.

He qualified to represent Brazil at the 2020 Summer Olympics.

In May 2021 he won silver at the Pan American Race Walking Cup.

At the 2022 South American Games he won a gold medal in the 35 km walk and a bronze medal in the 20 km walk. With this, he was chosen as the male flag bearer for Team Brazil at the Closing Ceremony of the South American Games.

At the 2023 World Athletics Championships, Bonfim won his second bronze medal at the World Championships in the Men's 20 kilometres walk, breaking the Brazilian record, with a time of 1:17.47.

At the 2023 Pan American Games, Bonfim won silver in the 20 kilometres walk, completing the race in 1:19.24. During the 20 km, he took the lead a few times, alternating with David Hurtado, who finished in front with 1:19.20 and broke the Pan American Games record. In the debut of the Race walk mixed team, Bonfim and Viviane Lyra obtained the bronze medal.

In March 2024, at the Taicang GP, in China, he broke the Brazilian record for the 20 km walk, which was already his, with a time of 1.17:44. This time is just 23 seconds off the South American record of 1.17:21, set by the Ecuadorian Jefferson Pérez and 1 minute and 8 seconds off the world record of 1:16.36 made by the Japanese Yusuke Suzuki.

At the 2024 Summer Olympics, he won the silver medal in the 20 km race walk, the first in Brazil's history.

At the 2025 World Athletics Championships, he became the World Champion in the 20 km race walk, becoming the first Brazilian to do so in a race walking event at the World Athletics Championships.

Personal bests Road walk 10 km: 39:03 min – Madrid, 30 Apr 2023 20 km: 1:17:44 hrs – Taicang, 3 Mar 2024 50 km: 3:47:02 hrs – Rio de Janeiro, 19 Aug 2016

Track walk 5000 m: 19:47.99 min – Fortaleza, 11 May 2011 10,000 m: 39:57.59 min (ht) – La Nucia, 21 May 2022 20,000 m: 1:19:52.1h hrs (ht) – Bragança Paulista, 27 June 2024

International competitions Representing 2007Pan American Race Walking Cup (U20)Balneário Camboriú, Brazil8th10 km45:402ndTeam (10 km)11 ptsPan American Junior ChampionshipsSão Paulo, Brazil5th10,000 m track walk44:34.95World Youth ChampionshipsOstrava, Czech Republic12th10,000 m track walk45:16.882008South American Race Walking Championships (U-18)Cochabamba, Bolivia2nd10 km47:00 minWorld Race Walking Cup (U20)Cheboksary, Russia —10 kmDQWorld Junior ChampionshipsBydgoszcz, Poland6th10,000 m track walk42:18.33South American Youth ChampionshipsLima, Peru1st10,000 m track walk43:21.9 min CR2009Pan American Race Walking Cup (U20)San Salvador, El Salvador1st10 km43:04 min3rdTeam (10 km)17 ptsSouth American Junior ChampionshipsSão Paulo, Brazil1st10,000 m track walk42:43.58Pan American Junior ChampionshipsPort of Spain, Trinidad and Tobago2nd10,000 m track walk42:43.582010South American Race Walking Championships (U20)Cochabamba, Bolivia1st10 km43:08 min2ndTeam (10 km)12 ptsSouth American Under-23 Championships / South American GamesMedellín, Colombia3rd20,000 m track walk1:33:05.1World Race Walking Cup (U20)Chihuahua, Mexico —10 kmDQWorld Junior ChampionshipsMoncton, Canada4th10,000 m track walk41:32.282011Pan American Race Walking CupEnvigado, Colombia10th20 km1:31:00South American ChampionshipsBuenos Aires, Argentina4th20,000 m track walk1:20:58.5UniversiadeShenzhen, China8th20 km1:27:19World ChampionshipsDaegu, South Korea22nd20 km1:24:29Pan American GamesGuadalajara, Mexico —20 kmDQ2012South American Race Walking ChampionshipsSalinas, Ecuador1st20 km1:23:59.0 hrs1stTeam (20 km)15 ptsWorld Race Walking CupSaransk, Russia17th20 km1:22:0514thTeam (20 km)152 ptsOlympic GamesLondon, United Kingdom39th20 km1:24:45South American U-23 ChampionshipsSão Paulo, Brazil1st20,000 m track walk1:23:22.832013Pan American Race Walking CupGuatemala City, Guatemala3rd20 km1:25:271stTeam (20 km)38 ptsSouth American ChampionshipsCartagena, Colombia1st20,000 m track walk1:24:28.40World ChampionshipsMoscow, Russia —20 kmDQ2014South American Race Walking ChampionshipsCochabamba, Bolivia —20 kmDQWorld Race Walking CupTaicang, China16th20 km1:20:28Ibero-American ChampionshipsSão Paulo, Brazil4th20,000 m track walk1:24:49.522015Pan American Race Walking CupArica, Chile2nd20 km1:21:26World ChampionshipsBeijing, China6th20 km walk1:20:442016World Race Walking Team ChampionshipsRome, Italy8th20 km1:20:20Ibero-American ChampionshipsRio de Janeiro, Brazil1st20,000 m track walk1:26:40.72016 OlympicsRio de Janeiro, Brazil4th20 km1:19:429th50 km3:47:022017World ChampionshipsLondon, Great Britain3rd20 km walk1:19:042019Pan American GamesLima, Peru2nd20 km1:21:574th50 km3:57:54

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