Kellie Harrington

She won a silver medal in the lightweight division at the 2017 Women's European Union Boxing Championships and a bronze at the 2018 Women's European Boxing Championships.

She won the gold medal in the lightweight division at the 2018 Women's World Boxing Championships. She was the silver medallist in the light welterweight division at the 2016 Women's World Boxing Championships.

Harrington won the 2020 European Boxing Olympic Qualification Tournament, by defeating Caroline Dubois on a split decision in the final.

Harrington was part of the Ireland team at the 2020 Summer Olympics. She was one of the flag bearers for Ireland at the opening ceremony on 23 July. She competed in the lightweight division of the boxing competition. In her first fight, she defeated Rebecca Nicoli 5–0 to advance to the quarter-finals, where she then defeated Imane Khelif 5–0 to guarantee at least a bronze medal. In her semi-final on 5 August, Harrington defeated Sudaporn Seesondee 3–2 to advance to the final. In her final on 8 August, Harrington defeated Beatriz Ferreira 5–0, winning the gold medal and becoming Ireland's third Olympic boxing champion. President Michael D. Higgins, Taoiseach Micheál Martin congratulated Harrington on her win, along with Katie Taylor and Michael Carruth.

Harrington won gold at the 2023 European Games in Poland, defeating Natalia Shadrina from Serbia in the final by unanimous decision.

At the 2024 Summer Olympics in Paris, Harrington was given a bye into the second round, where she defeated Italy's Alessia Mesiano by unanimous decision. In the third round she secured another unanimous decision win, this time over Angie Valdés from Colombia. Harrington defeated Brazil's Beatriz Ferreira by 4:1 split decision in the semi-finals. In the final she defeated Yang Wenlu from China on a 4:1 split decision and took the gold medal. This made her the first Irish boxer to win consecutive Olympic gold medals. After the fight Harrington announced her retirement from boxing.