Rafael Nadal and Roger Federer are set to battle for the No. 1 ranking at the U.S. Open. The simplest scenario for Rafa and Roger is that if one of them wins the title, they will be world No. 1 regardless, but why make things simple when one can make them complicated.

Here’s how Rafa can be world No. 1 after US Open:
- Champion
- Finalist
- Semi-finalist + Federer does not reach final
- Quarter-finalist, 4th Round or 3rd Round + Federer does not reach SF
- 2nd Round + Federer does not reach SF
- 1st Round or Does Not Play + Federer does not reach QF
Here’s how Roger can be world No. 1 after US Open:
- Champion
- Finalist
- Semi-finalist + Nadal does not reach SF
- Quarter-finalist + Nadal does not reach 2R
Who will end the US Open as world No. 1? Tell us in the comments below!

Well with this being the last big one to play and he knows he can relax after this one. Rafa will play hard,fast, and powerful. Rafa will stay No.1 and it will be good. Rafa is just the best Sportsman . Roger eh ok but not up to Rafa. his back will hurt him some more that IS Roger and it will still take a toll on him. Rafa is up to the Challenge and is on top of things and is practicing every day to improve in his game .RAFA NO.1
‘Will Rafa Nadal be no.1 after the us open’ . Sorry don’t care. That’s not a goal , he got to the no.1 by playing some of his best tennis and that’s what matters. Now if we get into this permutations and combinations of how he remain their and all that then it’s unfair to Rafa.Rafa has given us so many unbelievably awesome moments that these rankings n seedings doesn’t matter anymore. Watching him play gives the greatest feelings that I can live with that forever.
Vamos hero
I go with my only favorite Roger Federer to win this tournament.
Sorry Rafa, went to Ohio and you lost I believe in the second or third round. I saw you played there since I was one of the volunteers.
Que gane el major y punto.
STOP WRITING NON SENSE MESSAGES. RAFA O ROGER WILL BE NO 1 DEPENDING HOW THEY PLAY.
CANSADA DE LEER TANTAS TONTERIAS. GANARA EL QUE JUEGE MEJOR .
ODIENME SI QUIEREN.
Vamos Rafa y que ganes porque ees el mejor, Buena suerte
Good luck and Vamos Rafa <3
@Nicole – this is a Rafa fan site. why dont you go the a federer website. Geeezzz
There’s no reason why this cannot happen. Absolutely no reason at all. Rafa is pumped for this US Open, and he should roll through all takers until Federer, and we shall steal this candy from this baby.
Get it done Rafa!
yo creo en Rafa….jugando 5 sets solamente el puede…es su juego..te deseo mucha suerte Rafa..you are and will Always be no.1..
RAFA = THE NO. 1 CHAMPION ❤️🍀
Forever my king Rafa!
Just wait until the tournament ends.
Creo en Rafa y se k no dejara k su n.1 se lo arrebaten…mas el tiene ventaja jugando cinco set…CREEMOS EN TI RAFA
Rafa is my guy! But after Rafa I adore Fed. They both bring their A game all the time, and honor the sport with class and sportsmanship.
Roger who?
I am betting on Rafa.
HOLD ON RAFA & DON’T LET GO
RAFA ROCKS THE US OPEN
ROGER FEDERER MY DEAR
Rafa’s priority is to win slams, so this is all he should be thinking about. If he does, then he will continue to be no.1 naturally. He’s already said that he is glad to be no.1, but it was the most special when he was at the top of the rankings for the first time in 2008. I believe that in this stage of his career focusing only on winning slams should be his mindset.
I know and believe Rafa will still be no 1!!!!!!!
Go Rafa go play your heart out to stay #1
Rafa will be #1 💗😍
I think Federer will be No 1
I think (and hope) Rafa will hold on to it but I wouldn’t mind seeing Roger at #1 either, they’re 2 great ambassadors for the sport.
I’m just really, really excited for Rafa, just thrilled and I hope with all my heart he wins.
Estoy sumamente excitada y emocionada y espero con todo mi corazon que Rafa gane.