Barker was not the only success story at the weekend as trainer Tony Sims guided his first fighter to a world title.
Sims has forged a close bond with Barker over the years and the victory was a fitting reward after the pair helped each other through some tough times.
Barker said: "Me and Tony have been to hell and back. He's had to put up with me.
"He's not only my trainer, he's a great friend. It's not just me winning this world title, I've done it for loads of people.
"My friends, my family, my brother and Tony is another person I have done it for because he's worked just as hard as I have.
"He does a lot, training me, getting me in fantastic condition, but as a friend he's put up with me because I'm a pain sometimes. He's a top man and deserves all the success as well."
