Brett Stender of Luther, Brett Smith of Buena Vista and Jamie Dalbey of Coe were selected Monday as Iowa Conference Athletes of the Week in wrestling, men*s basketball and women*s basketball, respectively.    Stender, an All-America senior heavyweight from Donohue, pinned Randy Fulsaas of the University of Iowa last Friday to prevent the NCAA Division I national champion Hawkeyes from posting a pair of shutouts against Iowa Conference competition in a double dual in Maquoketa. Iowa defeated both Luther and Loras in the meet. Stender also defeated Pete Peterson of the Wisconsin-Eau Claire 16-4 last Tuesday to help the Norse record a 26-15 dual victory.    Stender (2-0) was the Iowa Conference runner-up last season and placed third in the NCAA Division III Championships.    A three-member committee of sports information directors from Iowa Conference colleges selects the Players of the Week based on nominations open to any sports information director in the conference.