Every other spring, the Holy Redeemer Cardinal 5K & Half Mile Fun Run take place. On the morning of the race, hundreds of runners of all ages gather at the Holy Redeemer Catholic Church parking lot and set out to enjoy a scenic swing through Rock Creek Park and the Rock Creek Highlands neighborhood. The course challenges runners to tackle "The Hill" on Cedar Lane before turning back into the Holy Redeemer neighborhood. Shortly after the 5K runners depart, the Half Mile Fun Run (or walk!) begins for the young racers. All the kids win and receive a medal!

After the races, the post-race party takes place in the Church parking lot and includes refreshments and entertainment for the whole family.

The event benefits Holy Redeemer Catholic School.