[1] At NBC, Collinsworth serves as a play-by-play announcer for Big Ten and Atlantic 10 Conference men's basketball.

[2] As a high school student, Collinsworth first got involved with broadcasting by recording, editing and producing videos.

[2] While a student there, he founded and hosted ND Live, a digital series covering the Notre Dame football team.

[1] In 2016 and 2017, he served as a sideline reporter for NBC's production of Notre Dame's Blue-Gold spring football game.

[1] In 2021, Collinsworth served as a reporter for NBC's coverage of the Kentucky Derby, pre-race host of the Indianapolis 500 and an on-site contributor for the 2020 Tokyo Summer Olympics on Peacock.

[5] With Peacock adding coverage of Big Ten basketball starting with the 2023–24 season, Collinsworth was selected as one of the conference's play-by-play announcers.