TMZ Sports obtained the Picabo Street 911 call -- in which the Olympic legend claims her father slapped her and pulled out her hair before she fought back ... and pushed him down a flight of stairs.
The 44-year-old was arrested for assault and domestic violence for attacking her 76-year-old dad at her home in Utah back in December -- but during the call, it's clear Street is claiming self-defense.
"My father just started attacking me in my own house in front of my children," the gold medal winning skier told the operator.
Street says the whole thing started after her dad accidentally crashed his car into her home -- and an argument ensued.
You can hear Picabo screaming at her parents during the call -- in fact, she yells at her mother while explaining that her father hit her first.
"Look what he did to my hair ... he slapped me on my face!"
Picabo was eventually arrested -- and later hit with several charges ... including 3 counts of misdemeanor domestic violence in the presence of a child and 1 count of misdemeanor assault.