Moorehouse started boxing aged 11[3] and claimed her first Irish age-group title in 2015.[4]
Fighting at light flyweight, she won a gold medal at the 2017 European Junior Boxing Championships in Sofia, Bulgaria, defeating England's Simran Kaur in the final.[5][6]
Moorehouse claimed gold at the 2018 European Youth Boxing Championships beating Russia's Kseniia Beschastnova on a 4–1 split decision to top the podium in Roseto degli Abruzzi, Italy.[7][8]
She had to settle for bronze at the 2019 European Youth Championships in Sofia, Bulgaria.[9][10]
In November 2019, Moorehouse won her first Irish national elite title, beating Shannon Sweeney by unanimous decision in the final.[11]
Moving up a weight division to flyweight for her first major senior international competition, she lost in the quarter-finals at the 2023 European Games in Poland, going down via split decision to France's Wassila Lkhadiri.[12][13]
Having lost out at the World Boxing Olympic Qualification Tournament 1 in Italy in March 2024,[14] Moorehouse finally secured her place at the 2024 Summer Olympics at the World Olympic Qualification Tournament 2 in Thailand in June 2024, overcoming a point deduction to defeat Zlatislava Genadieva Chukanova from Bulgaria by split decision in the crucial bout.[15]
[16]
Moorehouse's Olympic place was officially confirmed when Ireland named their boxing team on 28 June 2024.[17][18] She was given a bye into the second round[19] where she lost to 2023 European Games silver medalist Wassila Lkhadiri from France by 4:1 split decision.[20][21][22][23]
Moorehouse was selected for the 2025 IBA Women's World Boxing Championships in Niš, Serbia.[24] She was given a bye through to the second round where she faced the competition's eighth seed Hu Meiyi from China.[25] Moorehouse lost via 4:1 split decision.[26][27]
She was selected to represent Ireland in the 51 kg category at the World Boxing Championships in Liverpool, England, in September 2025.[28] Moorehouse lost in the first round to Spain's Laura Fuertes Fernández by 3:2 split decision.[29]