Lee Boylan's strike earned Canvey Island a draw with 10-man Gravesend, who had Matthew Rouse sent off.
Canvey went behind after 14 minutes when Rouse's free-kick found Roy Essandoh, who planted a firm header into the bottom left-hand corner.
Gravesend went close to adding a second through Andrew Drury's 20-yard drive.
But Canvey secured a share of the spoils when Boylan unleashed a low drive which fizzed into the back of the net three minutes before the hour mark.
Canvey Island: Potter, McGhee, Chenery, Smith,
Joseph (Keeling 73), Duffy, Kennedy, Minton, Sedgemore, Gregory (McDougald 89), Boylan. Subs Not Used: Cowan, Gooden, Harrison.
Booked: Kennedy, Minton, Gregory.
Goals: Boylan 57.
Gravesend: Wilkerson, Porter, Moore, McKimm, Surey, Drury (Pinnock 80), Saunders, Omoyinmi (Jackson 71), Rouse, Essandoh, Gledhill. Subs Not Used: Mitten, Shearer, Protheroe.
Sent off: Rouse 67.
Booked: Porter, Gledhill, Surey.
Goals: Essandoh 14.
Ref: D Deadman (Cheshunt).