TMZ Sports has obtained the full, unedited video of that terrifying brawl at a youth baseball game in Colorado ... and it's even worse than we thought.
The person who shot the June 15 footage at Westgate Elementary School in Lakewood tells us the violence began when a woman walked onto the field brandishing a baseball bat as a weapon ... and a male parent tried to take it away from her.
During the struggle over the bat (captured on video), some parents began attacking the man, beating him down to the ground.
