Olhanense, with one eye on the cup game with Benfica, surrendered their unbeaten league record with a 2-1 reversal in Lisbon against Oriental.
The home side took the lead six minutes after the interval through Diogo David, with Leleco leveling matters for the Olhão side a quarter-of-an-hour later.
Olhanense were looking the more accomplished but failed to take advantage of their dominance and, six minutes from time, Bura broke clear on the right to score the winner for the home side.
SC Farense had a comprehensive 5-0 victory against Azores outfit Sporting Ideal. Fábio Gomes got the first midway through the first-half and the same player added a second on the stroke of half-time.
Tiago Correia put through his own net two minutes after the break and 60 seconds later António Livramento made it four.
Okechukwu Irobiso added the final goal before the hour mark as Farense took their foot off the gas to ease themselves back to the top of the league.
A 63rd minute goal from Juan Costa was enough to give Louletano victory in the local derby against Moncarapachense.
League standings after six games: 1st SC Farense 15pts; 2nd Oriental (Lisbon) 14pts; 3rd SC Olhanense 13pts.
Caption: Leleco, scorer of Olhanense’s goal at Oriental last weekend