Scorecards of 114-114, 115-113 and 117-112 handed Taylor victory.
Sunday 27 October 2019 08:33, UK
Josh Taylor is targeting a battle with Jose Ramirez for undisputed super-lightweight supremacy after successfully becoming Britain's only current two-belt world champion.
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"What a fight, all respect to Regis, he's a great champion and was very strong," a jubilant Taylor, who now wants to fight WBO and WBC world champion Ramirez, said afterwards.
"I knew I could get to him. I don't think he expected me to be able to switch it up so easily.
"Let's get it on. Ramirez, where you at? Let's do it!"
After a valiant effort and suffering the first defeat of his career, Prograis was humble in defeat, adding: "It was a close fight, the better man won tonight so it's cool.
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"I thought it was pretty even until the last three rounds, thank y'all England, I'll be back.
"I enjoyed that, I'm sure he did too. Hopefully, we come back and do a part two."
Watch repeats of the WBSS final and Chisora vs Price on Sky Sports Box Office, from 9am and 3pm on Sunday. Book it via your Sky remote or book it online here. Even if you aren't a Sky TV subscriber you can book and watch it here.