Horley Under-13s made it three wins from three in the league this season by restricting Banstead to a low total.
Horley fielded first and Evan Grimwood, Tommy McKenna and Jack Love took a wicket each, while Ben Stewart accounted for two batters with a caught-and-bowled and a runout.
Udith Molanguri took two for seven from his three overs, including a catch for McKenna, while Leah Lane conceded just two runs off the bat in her three overs.
Skipper Molanguri opened the batting for Horley and retired on 30 not out, while Grimwood made 18 and Stewart 13.
Joseph Marshall ended up on ten not out as Horley made it home with three balls to spare.