Ontko, a junior for Benet Academy (Ill.), also improved on a few skills that will help him roam the secondary this season.
"Open-field tackling, and this year especially, I have been much better on breaking on the ball," said Ontko of his offseason improvements. "I hope to be a ballhawk this season."
During the summer, Ontko attended a one-day camp at Northwestern, joined by two of his Benet teammates. He left camp with an interception and zero receptions against him.
More importantly, Ontko gained an appreciation for Northwestern during his time on campus.
"The practice facility is great," said Ontko. "I'm sold on the team, I think it's going to be a great team for many years. I love the coaches. The academics are great. It's kid of the whole package."
Ontko does just about everything for Benet, playing running back, receiver, nickelback, and safety. Each camp helped him learn more about the positions he plays, but also offered a chance to compete with different prospects and helped him learn about the college search.
"I know what to look for, I know how to find my way around in each campus," he said.
When college coaches are allowed to begin contacting 2014 prospects on Sept.1, Ontko hopes he receives calls from some new schools, with Northwestern being near the top of the list.
Ontko was enamored with the campus and facilities during his time in Evanston; the next step is receiving steady interest.
"There's nothing left to see (on campus), I just got to play my game and hope I can go there some day," he said. "Hopefully the season will change that."