Keith and Debbie Raymond have gone from sitting on the couch eating chips to preparing for their first half marathon.
The Rotorua couple will join the 1000 or so people taking part in tomorrow's Podium Rotorua Running Festival.
They are part of a community-based group, led by David Massey, called Rotorua Group Challenge.
"We have got over 60 people entered from the group. The idea behind the group is to get people active and healthy," Mrs Raymond said.
The couple joined the Rotorua Group Challenge in January and will be running the half marathon tomorrow.