Atalanta played the entire second half with 10 men, but held on under pressure to scrape a point in Pescara.
This was a crunch relegation dogfight between two increasingly desperate sides. The Delfini had lost two on the bounce and were beaten by 10-man Udinese last week, while the Orobici finally ended a run of three consecutive defeats.
Manuele Blasi was suspended for Pescara, joining the injured Alessandro Crescenzi, Savelloni, Cristian Terlizzi, Jonathas and Brugman. Atalanta missed Ferri, Ivan Radovanovic, Ferreira Pinto, Daniele Capelli, Davide Biondini, Giampaolo Bellini and the banned Carlos Carmona.
Giacomo Bonaventura had a great chance after 13 minutes with his free header whistling wide of the upright.
Bonaventura threatened again from the edge of the box, but his wonderful curler was denied by an equally impressive Mattia Perin flying save. From that corner, the diving Maxi Moralez header skimmed the woodwork.
Bonaventura thought he had scored just before half-time, but after dribbling round Perin he found Damiano Zanon ready for a crucial goalline clearance.
Atalanta went down to 10 men just 120 seconds after the restart, as Federico Peluso received his second yellow card for a tackle from behind on Quintero.
Pescara somehow failed to take the lead on 52 minutes, as substitute Elvis Abbruscato was about to tap into an empty net when Thomas Manfredini flung himself at the shot from point-blank range.
Perin turned an Ezequiel Schelotto effort out for a corner, but Brivio went even closer with a blockbuster from distance that cracked against the upright. It was so powerful that the ricochet took it beyond German Denis ready to tap in.
Pescara were increasingly pushing and making the most of the extra man, as Quintero’s free kick clipped the upright.
Quintero then pulled back, but there were no teammates ready to get the final touch, while Abbruscato forced a reaction save out of Andrea Consigli.
Sent off: Peluso 47 (A)