In 2006, the British Virgin Islands were invited to take part in the 2006 Stanford 20/20, whose matches held official Twenty20 status. Jeffers made a single appearance in the tournament against Saint Lucia in a preliminary round defeat, with him being dismissed for a duck by Alleyn Prospere. He also captained the team in this match. He later played for the team in its second appearance in the Stanford 20/20 in 2008, making a single appearance in a preliminary round defeat against Dominica, where he was dismissed for 4 runs by Mervin Matthew. He didn’t captain the team in this match, with the captaincy having passed to Vishal Bharat.

Kelvin Sylvester Jeffers (born 2 September 1963) is a Nevis-born former British Virgin Islands cricketer. Jeffers was a right-handed batsman.