I came across this video labeled “The worlds most flexible woman” about Kristina Kireeva. I’m not sure exactly how you would measure flexibility, but I am sure that no one could possibly beat her by much!
Here is an interview with Kristina conducted by CircusLand that sheds light on a few details. Kristina began training at the age of 12 and comes from an entire family of circus performers! Her mother, father and brother are all in the circus.
Here is Kristina up close and personal demonstrating the kind of flexibility that makes me cringe as I watch her.