Tennis Tournaments can be divided into the following Categories - 

Rookies, Intermediate/Challenger, Advanced.

Within these categories there are various Levels of tournaments conducted by the USTA. These are labeled as -

L1, L2, L3, L4, L5, L6. The L1 tournaments are the biggest,then the L2 and L3 and then  L4, L5 and L6. The L4, L5, L6 tournaments cater mostly to local players where the players can compete with local talent.

The L1, L2 and L3 tournaments are bigger scale and are deemed as National tournaments and attract talent from all over the country.

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