The hosts had their first dangerous opportunity in the 13th minute, but Alfredo Saldívar saved Pumas as he made the first stop on Matías Alustiza with a kick-save and then smothered Martín Barragán’s follow-up header.
However, Atlas took the lead just a minute later. Saldívar once again made the initial save but gave up a rebound, and Clifford Aboagye was there to send the loose ball into the back of the net. 1-0.
Pumas had a chance to tie the game in the 27th minute, when Javier Cortés received a through ball in the box, but his shot was stopped well by Miguel Ángel Fraga.
In the 29th minute, the visitors did find the tying goal. Darío Verón found Alan Mendoza with a long pass, and he sent a low cross into the box for Matías Britos to finish off. 1-1.
In the second half, Pumas looked the more likely to find a game winner. They hit the post in the 75th minute and then Fraga had to make a point-blank save against Cortés in the 82nd to preserve the draw.
With the 1-1 draw, Atlas reaches 19 points while Pumas reach 18.
Atlas: Miguel Ángel Fraga, Leiton Jiménez, Luis Reyes, Gaddi Aguirre, José Madueña, Bryan Garnica, Clifford Aboagye, Javier Salas, Luis Robles (Jahir Barraza 78′), Martín Barragán (Fidel Martínez 69′), Matías Alustiza.
Pumas: Alfredo Saldívar, Alan Mendoza, José García, Darío Verón, Pablo Jáquez, Javier Cortés, Jesús Gallardo, Abraham González, Kevin Escamilla (Josécarlos van Rankin 91′), Bryan Rabello, Matías Britos.