Eichel is considered a potential top pick in next year's NHL draft along with Connor McDavid.
The Boston University centre showed patience and vision in setting up linemate Jeremy Bracco's goal and scored his own when left open while going to the net.
Among the other prospects in the exhibition game were defenceman Noah Hanifin and Vancouver Giants forward Alec Baer.
USA Hockey said there were over 200 NHL scouts expected to attend.
The teams were coached by former NHLers Mike Grier and Eddie Olczyk.