Saturday afternoon Derrickson, 6-foot-7, 225-pound forward out of Fairfax (Va.) Paul VI, committed to Georgetown. He picked the Hoyas over interest from North Carolina State, Indiana, Miami, Pittsburgh and Villanova.
"It's the perfect place for me," Derrickson said. "I've been up there so many times. I know everything they bring to the table. Their program is the best. There is a bunch of wisdom over them and a bunch of knowledge over there with their coaches."
"They can teach me a lot," he added. "They just know so much. It just felt like the perfect place for me."
Derrickson took an unofficial visit to Georgetown on Saturday. He said he's been to the campus multiple times. Saturdays visit particularly stood out to him.
"I loved it," he said. "It's unexplainable. I'm speechless."
John Thompson III and assistant Kevin Broadus spent the most time with Derrickson. He developed strong relationships with both.
"They are excellent people," he said. "I like them a lot. They are the type of people I can talk to about anything. I just felt comfortable with them."
"I just built a relationship with them," he added. "They are always there. I just like what they do at Georgetown. I love their system."
A hybrid forward, Derrickson stretches the floor with his jump shot. He has very good range on his shot and consistently makes jumpers from mid-range out to three. He's also equipped with good hands and touch, which helps him when he gets touches in the paint.
"They are always developing and always pushing you," he said. "They just develop and they utilize their players well. I like that. I like to get better and that's what they do. They are always pushing you out of your comfort zone and getting you better."
A four-star recruit, Derrickson is ranked No. 54 overall in the 2015 class. Derrickson is Georgetown's first verbal commitment of the 2015 class.