In the realm of collegiate tennis, the consumption of tennis balls is notably high, with a fresh can being opened for every set. This practice results in the use of approximately 12 to 18 cans per match, translating to a cost of $72 and the use of 51 balls per match, given that each can contains three balls priced at $4. When considering the multitude of matches held annually, the financial and material expenditure on tennis balls alone becomes substantial.
Seeking a more sustainable approach, Coach Bobby Bayliss, who manages the Notre Dame Tennis Facilities, embarked on a quest to optimize the use of departmental funds. His research into the practices of other universities led him to the discovery of the Green Tennis Machine (GTM). This innovative device rejuvenates used tennis balls, thereby extending their lifespan and reducing the frequency of new purchases. The GTM operates by using a blend of inert and non-flammable gases within a pressure chamber to restore the bounce of used balls, with the capacity to recondition around 500 balls simultaneously for prolonged use.
Notre Dame’s men’s and women’s tennis teams employ the GTM approximately 20 times annually, effectively diverting about 10,000 tennis balls from ending up in landfills. Additionally, various tournaments held on the courts throughout the year contribute used balls, which are subsequently repurposed. Coach Bayliss’ commitment to sustainability extends beyond this initiative. Once tennis balls are no longer suitable for collegiate play, they are often donated to local nursing homes, where they are repurposed as “wheels” for walkers. Other local charities also benefit from this recycled tennis ball program.
Beyond tennis balls, Coach Bayliss and his team are dedicated to recycling other materials. The metal seal rings from the cans are collected and taken to a local recycling facility, where they are weighed and sorted. The proceeds from recycling these lids are donated to support the Ronald McDonald Rooms at Memorial Hospital, furthering the impact of their sustainability efforts.