Meet Mackenzie Miller Lung, a BYU swimmer and record holder in the 50 and 200 breaststroke! Mackenzie talked to producer Annie Robinson about her journey to breaking the BYU school record in the 200 breaststroke, and what it was like finally seeing her name on the record board! She also opens up about her decision to step away from the sport at the end of the season, despite being in the middle of her best season yet as a junior.