The 2010 Clydesdale Bank 40 tournament was the inaugural ECB 40 limited overs cricket competition for the English and Welsh first-class counties. In addition to the 18 counties, Scotland and the Netherlands took part, as well as the Unicorns, a team of players who did not have first-class contracts.^[1]

The competition consisted of three groups of seven teams, from which the top team from each group, plus the best second-placed team, progressed to the semi-finals.^[1]

Glamorgan Dragons Lancashire Lightning Somerset Surrey Lions Sussex Sharks Unicorns Worcestershire Royals Glamorgan Dragons Lancashire 8 wickets Somerset 38 runs (D/L) Surrey 2 wickets Glamorgan 3 wickets Match abandoned Glamorgan 5 wickets Lancashire Lightning Lancashire 7 wickets Somerset 42 runs Surrey 8 wickets Sussex 4 wickets Lancashire 9 wickets Lancashire 4 wickets Somerset Somerset 249 runs Somerset 115 runs Somerset 64 runs (D/L) Somerset 4 wickets Somerset 7 wickets Somerset 71 runs Surrey Lions Surrey 39 runs (D/L) Surrey 2 wickets (D/L) Somerset 94 runs Sussex 6 wickets Worcestershire 90 runs Sussex Sharks Match abandoned Sussex 39 runs Sussex 17 runs (D/L) Match tied Sussex 44 runs Sussex 159 runs Unicorns Unicorns 58 runs Lancashire 2 wickets Somerset 3 wickets Surrey 66 runs Unicorns 6 wickets Unicorns 3 wickets Worcestershire Royals Worcestershire 178 runs Lancashire 9 wickets Worcestershire 49 runs Surrey 30 runs (D/L) Sussex 5 wickets Worcestershire 5 wickets

Derbyshire Phantoms Essex Eagles Gloucestershire Gladiators Middlesex Panthers Netherlands Northamptonshire Steelbacks Yorkshire Carnegie Derbyshire Phantoms Essex 5 wickets (D/L) Gloucestershire 1 run (D/L) Derbyshire 81 runs (D/L) Netherlands 7 wickets Northamptonshire 5 wickets Yorkshire 8 runs Essex Eagles Derbyshire 85 runs Essex 42 runs Essex 8 wickets (D/L) Essex 7 wickets Essex 5 wickets Yorkshire 10 wickets Gloucestershire Gladiators Gloucestershire 51 runs Essex 6 wickets Gloucestershire 3 wickets Gloucestershire 9 wickets Gloucestershire 7 runs Gloucestershire 65 runs Middlesex Panthers Middlesex 7 wickets Match abandoned Gloucestershire 77 runs Match abandoned Northamptonshire 49 runs Yorkshire 8 wickets Netherlands Derbyshire 7 wickets Essex 1 run Netherlands 54 runs Middlesex 46 runs Northamptonshire 32 runs (D/L) Yorkshire 5 wickets Northamptonshire Steelbacks Derbyshire 5 wickets Essex 9 wickets Gloucestershire 82 runs Middlesex 7 wickets Northamptonshire 119 runs Yorkshire 4 wickets Yorkshire Carnegie Yorkshire 100 runs Essex 7 wickets Yorkshire 23 runs Yorkshire 5 runs Yorkshire 4 wickets Yorkshire 35 runs (D/L)

Durham Dynamos Hampshire Hawks Kent Spitfires Leicestershire Foxes Nottinghamshire Outlaws Scotland Warwickshire Bears Durham Dynamos Durham 149 runs Kent 31 runs Leicestershire 7 wickets Nottinghamshire 5 wickets Durham 63 runs (D/L) Durham 5 wickets Hampshire Hawks Hampshire 6 wickets Kent 20 runs Hampshire 2 wickets (D/L) Nottinghamshire 35 runs Hampshire 31 runs Warwickshire 7 wickets Kent Spitfires Match abandoned Hampshire 2 runs Kent 8 wickets Kent 42 runs Kent 58 runs Warwickshire 6 wickets Leicestershire Foxes Durham 21 runs (D/L) Leicestershire 14 runs Kent 6 wickets Leicestershire 47 runs Scotland 4 wickets Warwickshire 25 runs Nottinghamshire Outlaws Nottinghamshire 3 runs Nottinghamshire 12 runs Match abandoned Leicestershire 4 runs Nottinghamshire 75 runs Nottinghamshire 7 wickets Scotland Durham 47 runs (D/L) Hampshire 8 wickets Kent 9 wickets Scotland 12 runs (D/L) Nottinghamshire 43 runs Warwickshire 7 wickets Warwickshire Bears Warwickshire 7 wickets Hampshire 130 runs Warwickshire 6 wickets Warwickshire 41 runs (D/L) Warwickshire 7 wickets Warwickshire 4 wickets

• ECB 40
• Friends Provident Trophy
• Pro40