I want to jump in this contest with a grand total of 14 (I really had to fight the last 4, its a good thing pauses are allowed!!!).
Me and my little brother are sort-of having our own push-up contest, so far he's winning
. We do it where one person does 1, the second does 2, the first does 3, and so on until someone fails. I failed on my attempt for 16 of them
No tennis ball, but my brother was keeping a close eye to make sure I did them proper!