As I like both of the players you want to give the 10 points to very much myself I can understand that it is difficult to decide but unfortunately it isn't allowed to donate the same amount of points twice.
Beside this if I would make an exception of allowing you to give 10 points to 2 players who knows which other ideas people on MTF would come up with to "blackmail" me
Interesting, for this case. You could give them both 10 and the 3rd one an 8. This is what I do and have done with joint points, a lot of the time involving the Bryans.
“ On Nadal bumping him on the changeover, Rosol said: "It's ok, he wanted to take my concentration; I knew he would try something".
Wilander on Dimitrov - "He has mind set on imitating Federer and yes it looks good. But he has no idea what to do on the court".