The Jurassic Singles Tennis Ladder, now in its sixth year, will start at the beginning of April.
The competition has gone from strength to strength with more than 40 competitors playing 350-plus matches last summer, with prize money paid to those finishing in the top four.
The area for matches is roughly a seven-mile radius of Dorchester with matches played at tennis clubs, village courts and town parks, including Borough Gardens in Dorchester.
Weymouth Tennis Club coach Clive Stow is co-organising again with Matt Barrett.

Clive said one of the best ways tennis players can improve their game is by competing on the ladder and the informal structure where players can contact each other and play up to four places above or below makes it easy to organise.
The entry fee of £10 remains the same as last year. For more information contact Clive on 07484 186761 or at jurassictennisladder@gmail.com
More details can be found on the ladder website, www.jurassictennisladder.wordpress.com