Visit the booking table of the club.
Choose time and court and click on the respective unit.
In the dialog box that appears, you click on “Book a court” without entering the name of your tennis partner.
Click on the reservation you just made (yellow field in the booking table).
Now you see the details of the reservation. Click on “Announce this reservation to your buddies”.
Chose here which Buddies you want to send an invitation to join your reservation. Therefor click on „add“ behind the respective name of your Buddy.
NOTE: In case you are not allowed to book a court without entering the name of your tennis partner, the club does not support the feature of announcing a reservation to your buddies.