Abigail Anderson, 29, suffered fatal injuries in the Sunday evening incident.
Justin Grunewald is covering the bar tab at a Minneapolis brewery next week.
Two prominent Gopher names are leading the effort.
Tuesday will also be proclaimed 'Gabe Grunewald Day' in Minnesota.
The 32-year-old leaves a huge legacy following her death.
The ex-Gopher and pro runner is at home resting in comfort care.