Saunders, a former amateur star and Olympian, won nearly every round as he out-boxed and out-worked Boulden for the full 10 rounds, the referee scoring the fight 99-92.
Boxing from a southpaw stance, Saunders dictated the tempo of the fight with his jab and accurate power punching.
The champion Boulden, struggled to compete with Saundersâ€™s ability but competed in every round, doing everything he could to survive, fighting from distance and on the back-foot.
In the fourth round Saunders rattled Boulden and tried to finish the fight early but was unable to stop his opponent.
The rest of the bout followed the same pattern, Saunders landing the more accurate and damaging punches, Boulden scraping by.
By the final round Boulden was slowing and Saunders again rocked him with successful uppercuts and body shots, but the champion survived.
After the fight Saunders said: â€œIt is the first of many [titles].â€
â€œThis is something Iâ€™ve been missing, a good ten rounds, you have to dig and grit money cannot buy that. Iâ€™ve never had noone stick it at me for 10 rounds. He did not want to give his belt up, you have to fight the champions.
â€œIâ€™ll give myself a seven for my performance. Fair play to him, he knew how to weather the storm. I’m onto bigger and better things.â€
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