In 2011 Matias moved to Ohio where he continued to go to high school at Western Reserve Academy.

The season started smoothly for Köykkä with wins at Virginia and Lime Rock.

Matias shut off the engine while leading the race, but managed to recover to sixth position.

[1] Due to this mistake his nearest competitor Bryan Herta Autosport driver Brandon Newey was hot on his tail.

After this Matias scored 6 podium finishes, including 2 wins, in the 7 remaining races.