Here you can access the LTA search engine for competitions at every level, age group, and location in the country.
To make things easier, here are search links for local starter-level singles competitions:
8U Boys & Girls (Mini Red)
9U Boys & Girls (Mini Orange)
10U Boys & Girls (Mini Green)
12U Boys / 14U Boys / 18U Boys
12U Girls / 14U Girls / 18U Girls
All events above will be within 10 miles of Sutton and Grade 6 (the lowest grade of open competition at local level). For events further away or at a higher level, you can edit the search on the panel on the right hand side once on the LTA site.