Mathis-Lilley worked at New York, where he began as an editorial assistant in 2004. While at New York, his tasks included overseeing "The Approval Matrix," a feature humorously graphing multiple things in regards to two qualities.[2] in June 2012, he was hired by BuzzFeed, where he served as the website's sports editor until his firing in March 2014.[3][4] He began contributing to Slate the same year.
