Making his debut on October 2012 aged 20 Lewis has a so far unbeaten record standing at 7 wins. The longest KO streak that Lewis has ever had is 2 throughout his 7 fights and his longest winning streak is 7 wins. This started on October 2012 and came to an end on October 2014.
In October 2012, Lewis took Daniel Micallef the full 4 round distance in a PTS decision debut win on the judges scorecards. Lewis's rise through the ranks continued with 4 wins against fighters such as Daniel Micallef, Jozsef Garai and Sean Gorman. This took his record to 4 wins.
On May 24th, 2013 Lewis fought and beat Jozsef Garai (4-12-1) to continue his unbeaten streak. The win against Garai happened in the 1st round of a 4 round fight via TKO.
Lewis then went on to fight and beat Martin Mccord on October 12th, 2013 maintaining his unbeaten record. Martin Mccord was Lewis's next opponent of his career in 2013. The fight was scheduled for 4 and Lewis was the 2nd person to go the distance with Mccord. Lewis then went on to face William Warburton where he added another win to his tally.
Arek Malek was up next for Lewis on September 5th, 2014. Lewis continued with his winning streak by beating Malek. Malek was a great challenge for Lewis, losing over the full 6 round distance and crowning Lewis as the 70th person to have defeated Malek.
Steven Lewis went into his latest fight with Fonz Alexander on October 25th, 2014 with 6 wins and he continued this winning streak taking it to 7 wins. Fonz Alexander was Lewis's next opponent of his career with the fight taking place on October 25th, 2014. The fight was scheduled to last for 4 and Lewis was the 5th person to go the full distance with Alexander and the fight ended in a win for Lewis.