Slevin competed at the English Championships and finished first in the junior guest division. At the Irish Championships Slevin finished first in the junior division. In June Slevin competed at the Youth Olympic Qualifier and finished 16th, thus qualifying a spot for Ireland for the 2018 Summer Youth Olympics. At the Irish Super Championships Slevin finished second on uneven bars and first on floor exercise. She competed at the European Championships but did not qualify for any event finals.