"Hello. I played college tennis. Moved out here for graduate school. I teach lessons occasionally but want to get back out there. Let me know if you want to set something up. My email is firstname.lastname@example.org.
"Hi Kartik it's Pat from doubles out in Rockville. As you know I am extremely good, just like yourself, and am now looking to start playing more. I enjoyed playing with you and welcome some hitting/playing anytime.