Peterson was first diagnosed with Parkinson's in 2003, and as the disease progressed, he was eventually forced to step away from the bench - but he was only getting started elsewhere.
In 2009, the Peterson Foundation for Parkinson's was born, and Peterson has now dedicated his life to helping others with the disease find a better life of their own, particularly here in Middle Tennessee.
That's what keeps him, and so many others, coming back to the golf course year after year - not only to enjoy the camaraderie that is easy to form in a setting like this, but to raise awareness and funds for a cause that affects so many.
"It's everything to me," Peterson said of the event. "Not only can we raise money, but we get exposure and people learn about Parkinson's. We have a couple guys out there playing that are getting up there in age and have Parkinson's, and they're just great because they still want to play and they still want to do things. It's fun to take our part of the money that we raised to help the people in this area. We have all kinds of things that will help the people in this area that have Parkinson's have a little bit better lifestyle."
Those activities include boxing, dancing, painting and even a choir to not only keep those with Parkinson's active, but give them a support group with others who are going through the same things.
They've made a positive difference in Peterson's life, and so does hosting this event, especially at a time like this.
Predators General Manager David Poile, Head Coach John Hynes, Captain Roman Josi and forward Rocco Grimaldi highlighted a group that hit the links along with more than 100 golfers on the day, and Peterson was grateful for their support.
"It was great to see David and John… and Roman and Rocco being here, they were wonderful," Peterson said. "Everybody came up to me and said, 'Geez, those guys were nice people,' and that's just good to hear. Josi didn't have to come out either, he's a big star in the League now, and he didn't have to go out of his way, but he came out to support, just like everyone else. It was so great to see everyone in person too."