What comes after 30 love in Tennis?

Answer 1

The scoring system works as follows, it is the same for singles and doubles so where player is used take it to also mean the team in a doubles match:

Love* (being zero) then 15 , 30, 40 and if the player on 40 scores the next point they win the game. If both players have 40, then deuce is called and a player has to score two points in succession to win. At deuce they play for the advantage, if somebody scores a point they get the advantage, then, after scoring another point straight away, they win that game. If, while one player has an advantage, the other player scores a point, it goes back to deuce.

So the answer to your question "What comes after 30 love?" (which means one person has scored two points while the other has yet to score) could be followed by the person with 30 scoring another point in which case it is 40 love or the other person scoring their first point which makes it 30 15.

*Some people say it came from L'oeuf (egg in French) because of the shape of the number