The main event of Washington D.C.'s first major boxing fight in 18 years pits IBF and WBA light welterweight champion Amir Khan defending his crown against D.C.'s own Lamont Peterson at the Washington Convention Center. The fight is taking place in Peterson's hometown, a rarity in boxing since he is the challenger. Joe Cooper is the referee for the bout, which began shortly after 11 p.m. Here is a recap of the fourth round.

Amir Khan began the fourth round needing to rebound, but Lamont Peterson struck back. After one bevvy of combinations, Khan stepped back and briefly egged Peterson on. Khan jumped in and landed a few punches at the 1:10 mark, and then Khan was able to land a strong right hook a few seconds later. The two fighters did slow down a little bit near the end of the round, which is understandable with the pace they have kept up.

Peterson took the fourth round, 10-9.

For more on the Khan vs. Peterson fight, including live results throughout the bout, visit this StoryStream, Bad Left Hook and MMA Nation.