In their Coastal Shellfish League Cup second round clash at Oliver’s Mount, third division Falsgrave stunned top-flight Westover, who ended the game with only nine players.
Richard Tolliday opened the scoring for the visitors when he broke clear of the Wasps defence and fired Falsgrave in front.
Paul Brady’s neat turn and finish made it 2-0, and to make matters worse Westover then had a man sent off.
This seemed to spark the hosts into life and they hit back with a goal from Mark Oldroyd.
Mikey Anderson restored Falsgrave’s lead with a fine solo goal, but Phil Meads struck to bring it back to 3-2.
Brady’s second goal - a superb scooped shot - pulled Falsgrave clear, and another Anderson effort secured the visitors’ place in the next round.
Westover’s woes continued when Oldroyd was forced to leave the pitch with a knee injury, the hosts ending the game with nine players on the pitch.
Falsgrave boss Billy Johnson said: “We were too strong for Westover, they may have had a man sent off but we were already two goals clear when this happened and were well in control of the game.
“Lewis Short was immense in defence once again and deserved the man of the match award, while Rich Tolliday also put in a great display.”