Teams Callum Clarkson played for

Under-15 County CupScotland Under-15s (2015)
Under-17 County ChampionshipScotland Under-17s (2016-2017)
Under-17 Celtic CupScotland Under-17s (2017)
Cricket Scotland LeagueRoyal High Corstorphine (2015-2024)
Scottish CupRoyal High Corstorphine (2017-2018)
Scotland Under-15 Inter-RegionalEastern Knights Under-15s (2015)
Scotland Under-18 Inter-RegionalEastern Knights Under-18s (2016)
East of Scotland Cricket AssociationRoyal High Corstorphine Second XI (2015)
 Eastern Knights Under-18s (2015)
 Royal High Corstorphine (2016)
MiscellaneousScotland Under-15s (2015)
 Scotland Under-19s (2017-2018)
 Scotland Development XI (2017)
 Eastern Knights Development XI (2018-2019)
 Royal High Corstorphine (2020)