Gregg began coaching tennis at the age of 16 with the Town of Amherst (New York) Park and Recreation programming in the 1980s. He later went on to manage the program while in college. Gregg was communications director of a trade association in Alexandria, Virginia when he had the first informal meeting with Stephan Schlagenhauff that would be the basis for FirstServe Tennis in 2002. With Schlagenhauff, the business partners would see FirstServe Tennis grow from its founding in 2002 to coaching over 1,000 tennis and pickleball students per week. Having taught thousands of students over the year, Gregg now enjoys helping instructors learn to be better coaches and continues to develop his own coaching knowledge. In addition to a BA in Communications, Gregg holds USPTA (Tennis) and PPR (Pickleball) teaching certifications.

Stephan has been involved in racquet sports for over 40 years as a varsity & tournament player, instructor, high school coach, program director and small-business co-owner. Stephan is certified by the USPTA (tennis) and PPR (pickleball) as well by EASI Tennis in high performance. Stephan is a member of the USPTA, PPR, USTA and USAPA. Prior to establishing FirstServe in 2002, Stephan worked in Asset-Backed Finance with the NYC office of an European bank ranked among the top ten in global assets. He graduated with a BA from Hamilton College (Clinton, NY) with a double major in Economics and German. Stephan furthered his studies at Georgetown University (DC) with an MBA in General Management. He is a native of Williamsville (Buffalo), NY and is a proud Town of Amherst staff alumni where he started his career.

Stephen has been coaching tennis full or part time since graduating from college with a degree in Physical Education/Sports Management. Stephen has been with FirstServe since 2011, first as an instructor and then adding manager to his duties. His teaching background begins with his love of how learners learn. Using the skills of ball tracking and point of impact training that is critical for all moving ball sports he has been able to quickly teach eye/foot/hand coordination skills that transcend all levels of tennis and pickleball. The idea that we teach the same core skills to beginners and pro players is paramount. In the past two years he has developed a love for playing and coaching pickleball. He is also skilled at directing specific instruction to more advanced players to reshape strokes, movement and tactics.

Sirgew was born and raised in Addis Ababa, Ethiopia. He started playing tennis at the age of 7 and became obsessed with the sport. There, he trained intensively for 10 years and had some success in the Junior circuit. In 2002 he moved to the US and focused on college, work and family for the following 10 years. Once in the United States, he spent a few years playing tennis again and decided to become a full-time coach in 2019. In 2021, he joined FirstServe (now Bounce-Boom) tennis academy. He coaches all levels of Juniors and Adults. He follows a strict coaching philosophy of help every student find love for the game providing knowledge and support so students could work harder and get smarter which leads to a healthier and happier life! He was named our Head Professional in 2023.