Marcus, 21, bagged his sixth goal of the season for Feirense when he scored in the 57th minute to put his side 2-1 ahead.
But a 90th minute equaliser by the home side forced a share of the spoils for both teams.
Marcus was also on target last Sunday when Feirense beat visiting Porto B team 2-0.
Commenting on the draw against Penafiel, Marcus expressed his disappointment his side did not secure all three points.
However, he was happy scoring his sixth goal of the season and claiming his fourth Man of the Match award.
He wrote on his Twitter handle:”Disappointed we didn’t get all 3 points. We really wanted all points, I just have to thank God for the goal, 6th of the season and for another MOTM award. 4th of the season.”
Marcus who joined Feirense on 1st July 2020, is currently joint third in the Portuguese second division top scorers chart.
Feirense are third on 31 points, six points behind leaders Estoril in the 18-team league table.
By James Agberebi