McClintock made his international debut for the Ireland cricket team in September 2021.
[2] Prior to his Twenty20 debut, he was part of Ireland's squad for the 2016 Under-19 Cricket World Cup.
[3] He made his List A debut for North West Warriors in the 2017 Inter-Provincial Cup on 2 July 2017.
[4] In June 2021, McClintock was named in Ireland's Twenty20 International (T20I) squad for their series against South Africa.
[5] In August 2021, McClintock was again named in Ireland's T20I squad,[6] this time for their series against Zimbabwe.