Smith made his first-class debut for Barbados in January 2002 in a Busta Cup match against Guyana. He did not bowl in the match but made scores of 10 and 35, his second innings ended after he was out hit wicket, an unusual form of dismissal. In his fifth match of the season, against the Leeward Islands, there were two notable occasions for Smith; he took his first wicket and, with an innings of 102, scored his first century. He finished the season with a batting average of 21.36.

In the 2002–03 season his bowling was used more often, he took seven wickets at an average of 28.42. His batting average improved to 24.55 but he was not able to score a half century during the season. Barbados finished as tournament winners but Smith did not feature in the final. It was not until October 2003 that Smith played his first List-A match, scoring a duck on his debut against Antigua and Barbuda in the 2003–04 Red Stripe Bowl. However, his form improved and he finished the season with a batting average of 39.75 and a highest score of 92 not out.

Indian Premier League

In 2008 Smith was added to the Mumbai Indians squad during the inaugural IPL season, he replaced his national teammate Dwayne Bravo. He played four games during the season and was most notable for his bowling; he took 5 wickets at an average of 16.60.

In the following edition of the IPL Smith w