The list of all participants will be published after the deadline for pre-registration (6 June 2017, 23:59 GMT). 

Estimated number of participants for each category is available. The estimates were provided by the representatives of respective national federations.

For qualification criteria, see the diagram below and detailed information in Categories

The deadline for qualifying via World Tour is 16 May. The last tournament to be counted is Berlin Open.

Also, don't forget to check out the World Tour standings and the current status of national qualifiers.