Scheifele and Hall had six points apiece in the Colts' 7-3 victory over the Ottawa 67's in Ontario Hockey League action Thursday night.
Scheifele scored a hat trick and had three assists, while Hall scored twice and added four assists. Anthony Camara, also with three assists, and Tyson Fawcett each scored singles for Barrie (9-2-0).
Fawcett's goal was the first of his OHL career.
Andreas Athanasiou picked up an assist for Barrie, extending his points streak to nine games.
Elsewhere in the OHL, it was: Bulls 5, Greyhounds 3; Steelheads 5, Sting 3; Spitfires 2, Otters 1; Whalers 2, Petes 1; and IceDogs 3, Battalion 2 (OT).
Both Graovac and Camara scored their 10th goals of the season, tying them for the OHL lead.
The game featured the league's top two power plays, and they did not disappoint. Barrie went 5 for 8 on the man advantage while the 67's finished the evening at 2 for 4.
Bulls 5, Greyhounds 3
At Sault Ste. Marie, Ont., Malcolm Subban made 27 saves and Jordan Subban had a goal and an assist as the Belleville Bulls (7-2-1) beat the Greyhounds (7-5-0).
Steelheads 5, Sting 3
At Sarnia, Ont., Spencer Martin made 37 saves to help the Mississauga Steelheads (6-3-1) beat the Sting (5-4-1).
Spitfires 2, Otters 1
At Windsor, Ont., Jaroslav Pavelka made 26 saves to lead the Spitfires (5-3-3) past the Erie Otters (2-6-2).
Whalers 2, Petes 1
At Peterborough, Ont., Connor Carrick scored the winning goal to give the Plymouth Whalers (3-3-3) a victory over the Petes (2-6-3).
IceDogs 3, Battalion 2 (OT)
At St. Catherines, Ont., Dougie Hamilton scored in overtime to give the Niagara IceDogs (7-4-1) a win over the Brampton Battalio (3-4-4).