The Markemen overtook Leiston at the top after the 34-year-old keeper went up for a corner deep into injury time and headed home an unlikely equaliser in a 2-2 draw at Canvey Island.
The Marketmen looked to have spurned their chance to go top after John Sands had put them in front in the seventh minute before second-half goals from Joey May and Harrison Chatting put their Essex hosts ahead with just over a quarter of an hour left on the clock.
A graduate of the youth, academy and reserve sides at Norwich City, Gay, pictured, rejoined Mark Morsley's squad at Bloomfields in September 2015 after leaving Southern League St Neots.
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