Presumably, the question is asking how many times a tennis ball has been struck while tethered to a device, similar to a tether ball. If that is the case, then no such record exists, at least according to the Guinness World Records Online (refer to the link, below).
by. harper maffei
i bounced the ball 2,000 times in 5minuts
26 hours, by a teacher
YES THIS IS TRUE
As of September 2021, the world record for the longest time bouncing a ball is 25 hours and 35 minutes, achieved by Joe Kupper in 2019.
How high you can bounce it or how long you can keep on bouncing?
1,068,396,091
17 hours 24 minutes
5867
Cock and balls
90
The current world record for the longest time bouncing a ball continuously is 19 hours and 15 minutes.
The longest time for bouncing a ball is 17 hours 24mins.
88hours
10000000000000000000000000000000000000000 times
348 times
The world record for bouncing a ball off a wall consecutively is held by Kevin Shelley with 1586 bounces in 2016.
11000 times approx...
James pembrey
2376!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I'm a BEAST!!!!!!!!!!!
The world record for bouncing a ball on the ground in one minute is 334 times, achieved by Ashrita Furman (USA) in 2019.
it was in Guiness book of World Records 2009. It is 55593934975891 times
The record for bouncing on an exercise ball is held by Ashrita Furman, who bounced on an exercise ball for 8 hours and 2 seconds in 2010.