At Sunday night's Money In The Bank pay-per-view on the WWE Network, she wrestled Nia Jax for the Women's Championship in what was the most heavily promoted match on the show.
It didn't go on last, but it was in essence the main event.
Rousey's first match, a mixed-tag bout at WrestleMania, was a huge success, but she had the luxury of being in the ring with Kurt Angle and Triple H. The two illustrious performers, with a combined 46 years of experience between them, could ensure the train was kept on rails.
Conversely, her match at Money In The Bank was a singles bout against Nia Jax.
She had no tag-team partner to share the workload with, and Jax only has three years of experience.
There were no obvious mistakes, and Rousey, who's much smaller than Jax, came across as a formidable, believable star wrestler.