Jonny has always had a big interest in motorsport from an early age. He claims that he caught the bug when his dad was competing in the Northern Ireland Metro Championship and he was dragged along through rain, hail and snow to his practice days and races. He received his first kart in 2001 when he received a cadet kart for his Christmas present. He gained his racing licence in early 2002 and after a lot of test days he finally had his first race at Kirkistown in March 2002. With a lot of support and help he went onto race in the cadet class for three years, winning a few races and becoming Kirkistown K plate Champion in 2003 and 2004.
In 2005 Jonny progressed to the highly competitive mini max class where he ended up finishing 8th in the Ulster Cup and 10th in the Northern Ireland Karting Championship. Jonny continued in mini max through to 2006 where he was able to achieve a few top five finishes and finished 5th in the Ulster Cup
2006 saw a move for Jonny into Junior Max where he stayed for the 2007 and 2008 seasons. 2006 saw Jonny going to finish fourth in the Championship and had many podiums and one race win. 2007 was his most successful racing season in karts where he went on to win the Northern Ireland Karting Championship, Coleraine and District Champion, B plate Champion and 2nd in the Ulster Cup. 2008 was a tough year with Jonny getting too tall for the class and weight being an issue but he went on to finishing third in both the Ulster Cup and Northern Ireland Championship.
2009 saw the next step in Jonny's Racing career. During this season Jonny got his first taste of single seater action in the highly competitive Northern Ireland Formula Ford 1600 Championship. With a few front row starts Jonny went onto finish 5th in the championship with a few podiums. He also became Pre 93 Champion and Northern Ireland Sprint Champion.
2010 saw Jonny becoming Northern Ireland Formula Ford 1600 Champion and Pre 93 Champion. This was a great season for Jonny with three wins and six podiums. He also went onto finish 5th at the prestigious Formula Ford Festival and 13th at the Walter Hayes Trophy.
2011 was a tough year for Jonny financially with signing for Cliff Dempsey Racing but a best result of seventh couldn't keep him in a seat due to finance. To keep him in a seat he went onto compete in a Mondiale 89s in the Northern Ireland Formula Ford 1600 championship. He went onto finish 3rd in the Open championship, Pre 90 and 93 champions. He also competed in the Festival and finished 5th coming from 21st in the semi to 8th and from 16th in the final to 5th. He then competed in the Walter Hayes Trophy with Athgoe Racing in a 09 Ray and he won his heat, third in semi and 5th in the final.
2012 was again another year in the Northern Ireland Radiator Services Mondiale 89s. He continued to compete in the Northern Ireland Formula Ford 1600 Championship, finishing third in the main championship. Jonny also clinched the Pre 90 championship for the second year in a row. While he also finished 18th in the main final of the Walter Hayes Trophy, after an engine blow up in the heat he had to start at the back in the progression race to get into the last chance then finished 4th in the that race to start the semi last, and finished 18th, starting the main final 36th and finished 21st. A very eventful and difficult day with lots of passing.
2013 has been his most successful season to date in the Mondiale 89s. He finished second in the Northern Ireland Formula Ford 1600 Championship, with two wins, fourth in the Irish Championship and Holmpatrick Trophy winner. Jonny also got nominated for Dunlop Sexton Irish Young Driver of the Month for September making him also eligible for the Driver of the year.