When people “got served” in the past, it was usually by witty quips and steaming plates of entrees—both of which were delivered at 140 miles per hour via racket. Return to this more elegant era with today’s Groupon: for $40, you get two months of full club membership for one person plus six one-hour Instant Tennis lessons or six one-hour Fit Now training sessions at The Club at Harper’s Point (a $229 value). Membership through today’s deal is only valid during the months of May and June.

The Club at Harper’s Point serves members as a regular outlet for an array of engaging exersessions. Six one-hour Instant Tennis lessons help turn novice swatters into volley virtuosos, with low student-teacher ratios to keep instructors from having to impart their court wisdom via semaphore (a $69 value; call for the most up-to-date schedule). The Club's 10 indoor courts are comprised of Deco-Turf—the same surface used at the U.S. Open—and the 11 outdoor courts are crafted from soft HarTru fodder to keep feet wagging their tails in glee. The club houses a stash of loaner rackets, preventing ill-equipped students from having to serve with their hands.

Certified personal trainers lead group training sessions via the Fit Now program, a head-to-toe exercise regimen with emphasis on core strength, balance, endurance, and body composition (a $69 value). As they blaze a fitness trail for their bodies to follow, groups receive motivation from one another rather than from berating phone calls from their junior-high gym teachers.

In addition to tennis or fitness instruction, today's deal includes two months of full club membership, providing muscles access to the fitness center and its Hammer Strength machines, computerized treadmills, and other strength and cardiovascular equipment (a $160 value). Aerobics class, spinning class, and swimming generate booming heart rates when done separately and create a new extreme sport when done together.