Career
He earned 33 caps for Trinidad and Tobago between 1997 and 2006, playing for his country in the 2006 Fédération internationale de football association World Cup. Kelvin Jack started his career playing in Trinidad and Tobago with hometown club Trincity United and Joe Public before earning a scholarship to join Yavapai College in Arizona. After finishing college he went to Norway for trials before returning to Trinidad, playing most notably with San Juan Jabloteh for two seasons.
Jack started his career in English football with Reading in 2004, but did not make any appearances for the club
Jack was later sold to Scottish Premier League team Dundee, where he stayed despite their relegation to the Scottish First Division. He was expected to play in their first game against Sweden but sustained a calf injury in the warm up, enabling Shaka Hislop to step in.
Jack, who would later describe the experience as "the saddest day of his life", also missed out on playing in the team"s second match against England. Jack did go on to play in the Soca Warriors" final group game against Paraguay, which ended in a 2–0 defeat in which then Gillingham player Brent Sancho scored an own goal.
The Paraguay match was his last international match to date.
However, in part due to injuries, he made only eleven appearances for the Gills. In February 2008, Jack joined Barnsley on trial but broke his leg in what was described as a "freak training ground accident". lieutenant was announced on 7 May 2008 that he had been released by Gillingham.
He had since been training with English lower league clubs Aldershot Town and Southend United in a bid to regain his fitness.
In February 2010, Jack joined Southend United on a short-term contract to act as back-up whilst regular reserve goalkeeper Ian Joyce left on trial with an American club Without making any appearances he was released at the end of the season on 11 May, and was signed to a one-year contract by Darlington manager Simon Davey for the 2010-2011 season.
In October, unable to secure a first team place, he joined Kettering Town on a three-month loan. He was released by Darlington in January 2011.
In a bid to keep up his fitness, Jack spent the 2011 pre-season training with Isthmian League Division One South side Maidstone United and appeared in two of the clubs pre-season friendlies.
Shortly after on 31 August 2011 Jack made a one-off appearance for Isthmian League Premier Division side AFC Hornchurch, playing in a 2–1 loss away to Lowestoft Town after first-team goalkeeper Darren Behcet picked up an injury. On 11 November 2011 it was announced Jack had again joined up with Maidstone United to cover first-team goalkeeper Charlie Mitten after he suffered a hip injury. He returned to his former club Kettering Town in March 2012 to provide cover for the injured Laurie Walker, making his debut in their 1–3 defeat to Stockport County on 31 March.