NHL Central Scouting’s Chris Edwards
"Calvin shows a lot of patience and poise for a young defenseman. He has high-end puck skill and passing ability. He has a very good shot, hard and accurate, and a very good ability to get the puck through traffic to the net. He sees the ice very well and moves the puck through traffic. His skating is excellent, mobility, agility and speed. His biggest asset is his hockey sense. He makes very few mistakes."
Oshawa head coach Chris DePiero
"He has that uncanny ability to slow things down in his mind and keep a high level of speed. He's such a down-to-earth, unassuming, humble guy. That's the nice thing about Calvin. The NHL part hasn't entered his mind. Certainly he wants to get drafted, that's his goal, but it hasn't been a distraction or a topic of conversation."