Your level of participation is up to you participating in fundraising events, service projects, and in attending local chapter meetings. Your annual membership supports our mission to serve others and supports the following programs: Tennis SOLES for Others, Tennis SUPPLIES Others and our TSO GiveBack. In addition, your membership annual dues supports our organization and covers operational costs. We value and thank all of our honorary members for their support. Our annual renewal month is August, no matter when you join.