1. Her hard work earned her the number 10 ranking in the women’s singles tennis.
2. Her ranking in the women’s singles tennis is NUMBER TEN.
3. Her ranking in the women’s singles tennis is TENTH.
4. Her ranking in the women’s singles tennis is NUMBER TEN.

I hope the sentence is clear enough for what I want to say.

Do all these four sound natural?
What would you say?

Thank you. :)

Question

1.	Her hard work earned her the number 10 ranking in the women’s singles tennis.
2.	Her ranking in the women’s singles tennis is NUMBER TEN.
3.	Her ranking in the women’s singles tennis is TENTH.
4. Her ranking in the women’s singles tennis is NUMBER TEN.

I hope the sentence is clear enough for what I want to say.

Do all these four sound natural? 
What would you say?

Thank you. :)

Answer

Your tries would be grammatically ok if you removed the ‘the’ before ‘women’s’ but not too natural.

I’d say:
She is ranked number 10 in women’s tennis. 
She is ranked 10th in women’s tennis.
(‘Singles’ is the default)
You might also add info, such as
She is ranked number 10 (in the world, in the US) in women’s tennis.