I am from Central America,
31 years old
Undergraduate GPA 3.8
I did an Executive MBA (Part Time) and finished with only 3.0 GPA in a top Business School in Latin America
GMAT 740
During my high school, I won a National Olympiad Competition,
I intend to apply to a PhD or DBA program at Harvard, Cornell, Sloan MIT, UCLA, London Business School

What are my chances

thank you

Regards