In 2020 he took part in the
World Athletics Half Marathon Championships, in
Gdynia where he ran a personal best of 1:04:27 in the
half marathon. In December 2020, he won the
10,000m and finished 3rd place in
5000m at the Brazilian Championship at the COTP stadium in São Paulo. He was selected to represent Brazil at the delayed
2020 Tokyo Olympic Games in the
marathon after achieving the qualifying standard in his first marathon, winning "The Bicentennial of Peru" competition, in Lima, on May 23, with a time of 2:09:04. On May 29, less than a week after securing Olympic qualification, Danielzinho, as he is known, won the 10,000m at the South American Championship in
Guayaquil, Ecuador. In April 2022, he broke the marathon Area Record for the
Americas at the Seoul Marathon, finishing third in 2:04:51. It's the best mark in history made by a marathon runner born outside Africa. At the
2022 World Athletics Championships, he finished 8th in the
Men's marathon, less than 1 minute from the medalists, having stayed in the main peloton until km 33. He led the 2022
New York Marathon before collapsing and requiring medical attention around mile 21 (km 32). On April 23, 2023, he finished fourth in the
Hamburg Marathon with a time of 2:07:06 (being the best non-African in the competition), meeting the qualifying standard for the 2024 Olympic Games. ==Doping violation==