Sealey is a 5-foot-8 sophomore setter from Roundup, Mont.
Rocky improved to 4-1 in the Frontier with a 3-0 sweep of the University of Providence and a 3-1 win over Montana Western.
Sealey averaged 11.14 assists and 2.14 digs per set.
Also nominated and listed in alphabetical order; Emily Feller of MSU-Northern, Kaylee Fritz of Montana Western, McKenna Kaelber of Montana Tech and Hannah Schweickert of Carroll College.