Lili Anna Tóth gained her first international experience at the European Youth Olympic Festival (EYOF) in Utrecht in 2013 , where she won the gold medal in the 2000 meter obstacle course in 6: 45.45 minutes. The following year she took part in the Youth Olympic Games in Nanjing , where she won the bronze medal in 6: 31.92 minutes. In 2015 she reached eleventh place in the Youth World Championships in Cali in 7: 03.25 min and in 2016 she was tenth over the 3000 meter obstacle in 10: 04.17 min at the U20 World Championships in Bydgoszcz . The following year she reached the final at the U20 European Championships in Grosseto , but could not finish her run there. In 2019 she was tenth at the U23 European Championships in Gävle in 10: 16.25 minutes.
In 2014 Tóth was the Hungarian champion in the 800-meter run and in 2016 in the 4-by-800-meter relay. In 2018 she won the 5000 meters and in 2019 the 10,000 meter run . In 2020 she won the obstacle course.
Personal best
800 meters: 2: 07.83 min, May 14, 2017 in Szekszárd
800 meters (hall): 2: 13.36 min, March 2, 2014 in Budapest
1500 meters: 4: 19.51 min, July 9, 2020 in Veszprém
1500 meters (hall): 4: 27.66 min, February 12, 2017 in Budapest
5000 meters: 16: 12.53 min, July 2nd, 2020 in Veszprém
10,000 meters: 34: 43.30 min, April 28, 2019 in Budapest
3000 meter obstacle: 9: 52.67 min, June 20, 2019 in Huelva