It all depends on how long the match is but if it was over a long period of time it would be about 3 referees
there is only 1 referee in tennis
one
One
there are 6.
In a football match we have referee and 2 lines men is there any other official in the match?
3
4
10
3
Two players on each side compete in a tennis doubles match.
In wrestling there is only one referee reffing a match.
10 points as a maximum