A jury on Friday (Saturday NZ time) found the former Worcestershire county all-rounder guilty of oral rape following a night out in April 2017 but cleared him of a further count of rape relating to the same victim.
The extent of Hepburn's depravity were revealed in the WhatsApp sex game messages cops found on his phone which were not aired at either of his trials.
A message written by Hepburn said: "Oi last night was my 60th".
Jurors heard Hepburn attacked his victim as he wanted to beat Joe Clarke who had won the "competition" past year.
Ms Moore described WhatsApp messages sent by Hepburn - including one urging cricketers playing the "stat game" to rate sexual partners out of 10 - as "dehumanising" of women.
"I hope this conviction will provide reassurance to other victims of sexual offences, giving them the confidence that they will be believed ... and that we will do everything to bring offenders to justice."
The trial related to an incident in the early hours of April 1, 2017, when Hepburn was accused of raping his victim, who had already had consensual sex with his then team-mate, Joe Clarke, after getting into her bed while she was sleeping.
Jurors heard Hepburn, who thought he was "God's gift to Worcester", attacked his victim as he wanted to beat best friend Mr Clarke who had won the "competition" previous year.
The woman, who had her eyes closed, engaged in 20 minutes of physical activity with Hepburn before realizing who he was when she heard his voice.
She woke up and wrongly believed she was having sex with Mr Clarke, before realising it was actually Hepburn, jurors heard.
During his evidence on Wednesday this week, Hepburn admitted he sent "disgusting, frightful and embarrassing" messages via WhatsApp while setting the rules of a sexual conquest competition to have sex with as many new partners as possible.
Bailing Hepburn following the decisions, the judge, Jim Tindal, told the cricketer: "I am suspending your case for the preparation of a pre-sentence report". The 23-year old will now face a prison sentence after being convicted on one charge of rape.
"It would not be a consideration to you to abandon you under any bogus impression with regards to the motivation behind that report".