Anthony Joshua is now the WBO, WBA, IBF and IBO heavyweight champion of the world. Joshua did what he had to do and, while Parker deserves a lot of credit, it was a measured and controlled display from the Brit to earn win No. 21.
The hand speed of Parker was on show in the opening round as he pushed out probing jabs at Joshua, who edged forward menacingly on the front foot.
Matchroom views Joshua as a much bigger drawing card in the United Kingdom than Wilder is in the US.
Joshua was more aggressive in the third round, landing a two-punch combination before catching Parker with a left hook on the ropes.
Come the end of the 12th round, both fighters touched gloves in recognition of a night better remembered for some deft technical work from Joshua, as he proved that power isn't the only weapon in his repertoire ahead of a potentially historic clash with Wilder later in the year.
"I'm not into the business of hype, hype, talk, talk".
"I still think in the long-term, when Anthony sits down and thinks it through he makes up a decision that to become a truly global sports star perhaps he needs to go to America".
"Assuming it will be Wembley Stadium in the summer, we are ready, and if they are ready as they say they are, we want to get it done".
"I have no regrets, I will take it on the chin".
"Listen AJ, please don't fight Wilder because he'll knock you spark out and take my £50million".
With the fight done and dusted, Joshua admitted he doesn't bear any ill will towards Parker - and made sure to check-in with his mother Sala right after the fight.
What Joshua wants, is what is usually delivered to him by his promoter Eddie Hearn who now faces tricky dealings with the Wilder camp who have been far too greedy with their monetary hopes in earlier attempts to set up the fight.
The 26-year-old New Zealander, who had been led into the ring by Samoan chiefs under a barrage of strobe lights before Joshua walked in to the sound of "Paid in Full" and "Another One Bites the Dust", was gracious in defeat. "I don't know if she had a bet on or something but she messaged me and said second or seventh". Better man on the day.
"This was a boxing match, not a fight".
According to the Telegraph's Gareth Davies on Talksport, the ultimate goal is a two-fight deal between the two world champions.