She's an Olympic Judo champion with incredibly good BJJ. No one on this forum would stand a chance let alone some random guy on a street. Weight becomes somewhat irrelevant when a high level Judo practitioner is fighting someone who has no idea what they're doing. Same goes for BJJ as we've seen on multiple occasions.
She has muscles in places most guy don't know existed. Her grip strength is probably insane. There's just no way a random guy could beat her barring some freak knockout.
Just with pure strength if a strong man picks Ronda up during and armbar he could potentially smash her into the ground or a hard surface.
Your arm would be torn off before you could even think of picking her up and slamming her.