A bustling seamer and useful lower order batsman, Coles quickly established himself as an important part of Kent’s attack after making his debut for the county in April 2009.
Having taken 27 first-class wickets in 2010, he improved on that figure by five the following year, claiming two five-wicket hauls in the process.
He also enjoyed early success in limited-overs matches, although a tendency to prove expensive prevented him from securing regular action in the shorter formats.
Coles’ overall progress was recognised at the end of the 2011 domestic season, when he was named as a potential England Performance Programme player.
After Stuart Meaker was forced to return home from Sri Lanka in February with a lower back injury, Coles was then called into the England Lions squad for the first time.
He continued to develop at Kent and struck his maiden first-class hundred - an unbeaten 103 - against Yorkshire in the first week of the 2012 season. That year he went on to take 52 LV= County Championship wickets at an average of 22 and was rewarded with a place in the England Performance Programme tour to India.