Buffalo selected Pekar (6'0", 173 lbs., 2/2/2000) in the fourth round (94th overall) of the 2018 NHL Draft in June. Through the first 10 games of his OHL career with the Barrie Colts, Pekar ranks second on the team with six goals and fourth among Colts players with 11 points.
Before joining Barrie, Pekar was named USHL Rookie of the Year in 2017-18 after he tied for the rookie league lead with 54 points (14+40) in 56 games for the Muskegon Lumberjacks. His 40 assists led his team and ranked fourth among all USHL players.
A native of Turnov, Czech Republic, Pekar also represented his country twice last season, helping the Czechs finish second at both the 2017 Ivan Hlinka Memorial Tournament and the 2018 IIHF World U18 Championship.