Chadwick has joined the Rocks on dual terms with Worthing and his strike gave them an interval lead. But Archie Willcox levelled for the Hampshire side on 70 minutes and Reuben Austin nicked the winner seven minutes into time added on.
It was revenge for Portchester, who’d lost 5-4 at home to Bognor in a remarkable opening day game.
The result leaves Jamie Howell’s side down to 12th in the Isthmian south central table. They visit old rivals Met Police next Saturday.
See pictures by Lyn Phillips and Trevor Staff on this page and those linked, or just by scrolling down the single page if you’re on the Observer app.
13. Lyn Phillips
Rocks v AFC Portchester, Isthmian south central division Photo: Lyn Phillips and Trevor Staff
14. Lyn Phillips
Rocks v AFC Portchester, Isthmian south central division Photo: Lyn Phillips and Trevor Staff