Wagner is a 5-foot-9 senior from Havre, Mont.
The sixth-ranked Saints went 2-1 for the week. Carroll lost to No. 4 Thomas More (Ky.) 74-73, beat No. 14 Lindsey Wilson (Ky.) 84-63 and No. 15 Saint Xavier (Ill.) 71-61.
Wagner averaged 19.3 points and 6.7 rebounds per game. She was 22 of 39 from the field (56.4 percent), 8 of 18, 3-point field goals (44 percent) and 6 of 7 from free throw line (85.7) percent.
In the win over Lindsey Wilson, Wagner scored a career high 28 points.
Also nominated and listed in alphabetical order; Brynley Fitzgerald of Montana Western, Tavia Rooney of Montana Tech and Kloie Thatcher of Rocky Mountain College.