Magical Tennis

[bonanova]

Due to temporary magical powers you find yourself undefeated in the US Open tournament, slated to play none other than Novak Djokovic for the title. Now it would not be fair to Djokovic -- and there would be no puzzle -- if you could keep your powers for the entire final match. You are informed that, at some point before the end of the match, your powers will go away, and you must finish the match using only your native skills. However, because you possess great logical skills you are granted to choose what the score will be when your powers end. In order to maximize your winning chances, what score (sets, games and points) would you choose? (Finals matches are best 3 of 5 sets.)

[harey]

So obvious that I fear I am missing something:

sets: 2:0
games: 5:0
current game : 50:love

[bonanova]

That's the beauty of this one. You're only missing the best answer.

Assuming you mean 40-love. Your powers must expire before the match ends.

[harey]

A typo again...I get used.

Thinking it over, it is much more complicated.

p1=p(I score when I serve)
p2=p(I score when the adversary serves)

Except for very bad players, p1>p2.  Do you see the problem?
 

[bonanova]

Yes, it is not a gimme that you win. The best strategy only means that among all possible strategies, it gives the best shot at winning.

[bonanova]

Not solved yet.

[bubbled]

Not solved yet.

Here goes:

 I'd go up 2-love in sets, tied 6-6 in games and up 6-0 in the tiebreaker. At the end of the day, the set score is meaningless. And I'm betting on Djoker against any true amateur.