Billy Gilmour was the matchwinner for Chelsea in their win over Brighton U18.
A wonderful free-kick from Gilmour 10 minutes from time sealed the league points for Jody Morris's men.
Marc Guehi's header hit the bar and Charlie Brown's penalty kick was saved in the first period, with Guehi also having to clear off his line after a rare attacking foray from the visitors.
It was a frustrating evening at a clear and cold Cobham for the hosts as it looked like a breakthrough goal would evade them, though Gilmour's brilliant bending finish late on ensured the league leaders claimed a deserved full complement of the points.