After last week’s 35 run victory over the Lingfield Lancers, Horley made it a hat-trick of wins in this new competition.
A second successive half-century retirement for Adam Stephenson and 41 from Sam Remfry saw the Hackers reach a total of 187 from their 20 overs.
The Horley bowlers made short work of Smallfield’s openers and only the visitors’ captain Akash Gupta put up any real resistance with a rapid 53 containing five sixes.
The pick of the Hackers bowlers was Dave Childs with three for 18 from his spell and Horley restricted Smallfield to just 119 from their 20 overs.
The Hackers now face Crawley again to hopefully ensure they maintain top position in the group stages before round two.