Teams William Thomas played for

Second Eleven ChampionshipNorthamptonshire Second XI (2016)
Second Eleven Twenty20Northamptonshire Second XI (2015-2016)
Under-14 County CupNorthamptonshire Under-14s (2012)
Under-15 County CupNorthamptonshire Under-15s (2013)
Under-17 County CupNorthamptonshire Under-17s (2014-2015)
Under-17 County ChampionshipNorthamptonshire Under-17s (2015)
MiscellaneousNorthamptonshire Under-10s (2008)
 Northamptonshire Under-11s (2009)
 Northamptonshire Under-13s (2011)