He played college football for the TCU Horned Frogs, twice earning second-team All-American honors.
He was signed by the Seattle Seahawks of the National Football League (NFL) as an undrafted free agent in 2016.
[12][13] Boykin opened the 2016 preseason as the Seahawks' primary backup behind starter Russell Wilson ahead of Jake Heaps.
Boykin threw his first regular season NFL touchdown pass (16 yards to Doug Baldwin) on September 25, 2016, at home against the San Francisco 49ers in the fourth quarter.
On September 2, 2017, Boykin was waived, officially losing the job to Davis, and was signed to the practice squad the next day.
[19] On November 7, 2023, Boykin signed with the Massachusetts Pirates of the Indoor Football League (IFL), but decided to return to the Galgos de Tijuana.
[20][21] On December 31, 2015, two days prior to the 2016 Alamo Bowl, which was to be Boykin's final college game, he was arrested in San Antonio, Texas after a bar fight in which he threw a punch that hit a patrol officer.
He was charged with assaulting a public servant, a third degree felony, assigned a $5,000 bond, and suspended from the game.
[23][24] On March 27, 2017, Boykin was arrested in Dallas, Texas, for misdemeanor charges of possession of marijuana and public intoxication.
He was in the passenger seat of a car that, while backing up at high speeds, struck pedestrians on a nearby sidewalk and then the side of a local bar.
[27] On March 27, 2018, a report was made that Boykin had broken his girlfriend's (Shabrika Bailey) jaw during an altercation the previous week.
In June 2019, he was given additional charges of aggravated assault of a family member with a deadly weapon and tampering with a witness following the March 2018 incident.
While still in police custody on December 9, he was charged with misdemeanor theft for failing to pay for a hotel stay from October 29.
He was charged with an additional two counts of misdemeanor theft on December 30 after agreeing to sell TCU memorabilia, receiving payments, and refusing to deliver them in January 2019.