 At the 2013 United States National Championships, Berens finished 5th place in both the 100-meter freestyle and the 200-meter freestyle, qualifying him to swim in the 4 x 100-meter freestyle relay and 4 x 200-meter freestyle relay.At the 2013 World Aquatics Championships in Barcelona, Berens combined with Conor Dwyer, Ryan Lochte and Charlie Houchin in the 4×200-meter freestyle relay, with the team finishing in first place for the gold medal.Swimming the anchor leg, Berens recorded a split of 1