Loyd was drafted first overall in the 2015 WNBA Draft by the Seattle Storm. She played alongside superstar veteran point guard Sue Bird. Loyd played the point guard position prior to her WNBA career, but with Bird already playing point guard for the Storm, Loyd instead played as a shooting guard. Loyd was also a back-up point guard in her rookie season for the Storm. While Bird sat out the final seven games of the regular season to rest, Loyd was the starting point guard. Loyd played 34 games with 23 starts in her rookie season for the Storm. Her season performance earned her the WNBA Rookie of the Year Award, while she averaged 10.7 ppg.