A 71-year-old Minnesota man diagnosed with multiple myeloma was among nearly four-thousand runners in Saturday’s Mayor’s Marathon.

Doctors discovered Don Wright’s cancer nine years ago after Wright completed his first marathon and since then he’s had a goal of running 50 marathons in 50 states.

“I’ve run marathons as close together as a week apart, and when you do that, you go slower and take it easy.” Wright said. “I no longer try to win my age group, I used to do that, and I've won my age group a few times.”

He finished third in his age group of males aged 70 to 74-years-old with a time 5 hours 43 minutes 32 seconds, according to results posted on BazuSports.

The Alaska run marked his 45th marathon on his list of 50.

Wright said in a pre-interview before the race that “Sometimes I even feel like when I'm running, I'm sticking that cancer right in the eye."

KTUU’s Neil Torquiano contributed to this story.