The women's 50 metre butterfly event in swimming at the 2013 World Aquatics Championships took place on 2–3 August at the Palau Sant Jordi in Barcelona, Spain.
The Women's 50 metre butterfly competition of the 2014 European Aquatics Championships was held on 18–19 August.
The Women's 50 metre breaststroke competition of the 2014 European Aquatics Championships was held on 23–24 August.
The men's 50 metre freestyle competition of the swimming events at the 2015 World Aquatics Championships was held on 7 August with the heats and the semifinals and 8 August with the final.
The Men's 50 metre backstroke competition of the swimming events at the 2015 World Aquatics Championships was held on 8 August with the heats and the semifinals and 9 August with the final.
The Men's 200 metre individual medley competition of the swimming events at the 2015 World Aquatics Championships was held on 5 August with the heats and the semifinals and 6 August with the final.
The Women's 200 metre breaststroke competition of the swimming events at the 2015 World Aquatics Championships was held on 6 August with the heats and the semifinals and 7 August with the final.
The Women's 100 metre butterfly competition of the swimming events at the 2015 World Aquatics Championships was held on 2 August with the heats and the semifinals and 3 August with the final.
The Men's 50 metre freestyle competition of the 2018 European Aquatics Championships was held on 8 and 9 August 2018.
The Men's 100 metre breaststroke competition of the 2018 European Aquatics Championships was held on 3 and 4 August 2018. It was won by Adam Peaty in a world record time of 57.10.
The Women's 50 metre freestyle competition of the 2018 European Aquatics Championships was held on 3 and 4 August 2018.
The Women's 200 metre freestyle competition of the 2018 European Aquatics Championships was held on 5 and 6 August 2018.
The Women's 50 metre butterfly competition of the 2018 European Aquatics Championships was held on 8 and 9 August 2018.
The women's 50 metre breaststroke competition of the 2018 FINA World Swimming Championships was held on 11 and 12 December 2018.
The Women's 50 metre butterfly competition of the 2018 FINA World Swimming Championships was held on 13 and 14 December 2018.
The Men's 50 metre butterfly competition of the 2018 FINA World Swimming Championships was held on 14 and 15 December 2018 at the Hangzhou Olympic Sports Center.
The men's 50 metre freestyle competition of the 2018 FINA World Swimming Championships was held on 13 and 14 December 2018.
The Men's 50 metre freestyle competition at the 2019 World Championships was held on 26 and 27 July 2019. Caeleb Dressel finished first in the final, retaining the title he won in the previous Championships.
The Women's 50 metre freestyle competition at the 2019 World Championships was held on 27 and 28 July 2019.
The Women's 50 metre butterfly competition at the 2019 World Championships was held on 26 and 27 July 2019.
