Allums graduated from Centennial High School in Circle Pines, Minnesota, United States. He played three seasons as a guard on the women's basketball team at George Washington University, the George Washington Colonials.[5] Allums's teammates called him "Kay-Kay".[2] Allums began telling people to call him "Kye".[6] He came out as a trans man in 2010.[7] He told sports website Outsports, "my biological sex is female, which makes me a transgender male."[2]
In May 2011, GWU announced that Allums had decided to leave the GWU basketball team.[8] He graduated from George Washington University in 2011 with a bachelor's degree in Fine Arts.[9]
In 2014, in an interview with ESPN, Allums said that he had attempted suicide.[10]
Allums began traveling around the country to talk about life as a transgender person.[7] He visits high schools, colleges and universities to discuss the transgender community and how it is possible to be transgender and play on a team.[12] He gives advice on confronting bullies when being trans.[13]
He starred in Laverne Cox's documentary The T Word.[7] The film follows young transgender individuals and explains what they go through.[14]
Allums produced a project called "I Am Enough", which encourages other LGBTQ individuals to come out and talk about their experiences.[15] The project allows individuals to submit their stories, thereby showing people who share the same issues that they are not alone.[16]