Pi Mile is a 5K run/walk organized by the Brothers of Phi Sigma Pi which benefits a charity chosen by the Chapter. The Pi Mile is held every year in the Fall and continues to grow each year.

1998: Ele’s Place - community based organization whose mission is to create awareness of and support for grieving children and their families.
1999: Ele’s Place
2000: Ele’s Place
2003: ALSTDF - organization targeted toward research for Lou Gehrig’s Disease
2004: Special Olympics - nonprofit international organization providing year round sports training and athletic competition to people with cognitive disabilities.
2005: Gateway Services - nonprofit agency that provided a comprehensive range of services to children, adolescents, and families in crisis in the Greater Lansing Area.