[3] Porras made his debut in Costa Rica's Primera División for Herediano on 3 February 1991 against Guanacasteca and conceded his first league goal three days later against Saprissa.

However, because Erick Lonnis, the star goalkeeper for Saprissa and Costa Rica, was at the pinnacle of his career, Porras had to patiently wait for his chance.

With Porras in goal, Saprissa finished third in the FIFA Club World Championship 2005, behind São Paulo and Liverpool.

[8] Porras was a non-playing squad member at the 1989 FIFA World Youth Championship in Saudi Arabia.

[9] He made his international debut for Costa Rica in a June 2004 friendly match against Nicaragua and earned a total of 33 caps, scoring no goals.