Toby Funnell struck both inside the final quarter hour to the relief of the Rustington bench - but only after the Robins were reduced to ten following Tyler Richardson's second yellow;
Funnell bundled over the line from a corner, before rifling beyond Harley Redman in the Reds goal, three minutes from time.
GALLERY - BOSHAM 0 RUSTINGTON 2
Until that time however, Bosham showed a real battling spirit to keep the league leaders at bay while causing Rustington problems of their own on the counter.
Richardson's red would give Rustington more freedom down the right hand side to exploit, with Funnell's well-hit strike late on ensuring the points to maintain their title ambitions.
Frank Antony's side should take confidence from a resolute display against a side with title ambitions, heading into their final two at Capel (April 18) and the return fixture at Rustington (April 21), as they go about climbing off the foot of the Division Two table.
FIRST TEAM MANAGER VACANCY - 2026/27
The Club are inviting applicants for the role of First Team Manager ahead of next season - details can be found in the link above with expressions of interest to be sent to chairman@boshamfc.co.uk