When Westerville's Shannon Hall and her three siblings were asked to step in the hallway so a nurse could attend to their ill father, a sister predicted that Hall would be the first of the kids to die.

"On the way home I told my husband, 'I don't think so,' " she said.

At the time, Hall weighed 330 pounds and suffered from medical problems including sleep apnea and high blood pressure.

"I was going down-hill fast in my mid-30s," she said.

Her father died in 2011 at the age of 57 from cancer and other health problems.

"I knew I was going down the same path," Hall said. "In 2012, I decided that was enough for me."

Hall, 42, started taking notes about everything she was eating and how she was feeling.

"I figured out why I was doing what I was doing," she said. "I was depressed. I wrote what I ate, who I was with. I was on a treadmill only two minutes and was balling my eyes out; I hurt so bad."

She said she purchased a bunch of books and watched YouTube videos about health and wellness to see what would work for her.

"When I was going through all that, I knew I didn't want it to be a resolution," Hall said. "If it was going to work, I knew I had to take ownership and make it a lifestyle."

Hall said she learned a lot about herself.

She didn't have a personal trainer, and even started her transformation when her husband, William Hall Sr., a 1988 Westerville North High School alumnus, was going through culinary art school.

"I'd come home and he'd be making things," she said. "The pastry part ... it made me stronger."

She said she saw an elliptical machine for sale for $5 as she was driving down a road.

"I would do the elliptical in the morning and at night," she said.

She lost 182 pounds in a little over a year and a half.

But unable to lose the rest of the weight she wanted to shed, she decided to do something different – a friend convinced her to register for an Ironman triathlon.

She competed on Team Save the Children in the Ironman 70.3 in Ohio in July 2017 by swimming 1.2 miles, cycling 56 miles and running 13.1 miles.

In preparation for the challenge, Hall spent eight months teaching herself how to swim, and she picked up a second job so she could buy a bicycle.

"I didn't even know how to swim," she said. "That was the biggest fear for me."

She said she likes running the most, logging three to six miles per session.

"I enjoy going on a nice, long run," Hall said. "I run and count 100 blessings. I run at least four to five days a week."

She said she wanted to make a difference for other people as well as for herself, so she decided to raise funds for a cause, Save the Children.

When looking for a sponsor for the Ironman triathlon, Hall said, Save the Children represented things that mattered to her.

"I grew up poor as a kid," she said. "I understood it. Everything they represented I really liked."

She raised $2,500 for the cause.

"Shannon is a champion for children and healthy living, and we're proud to partner with her to ensure all children get the future they deserve," said Allison Lardner, Save the Children director of community engagement.

"Her passion to improve her health is inspiring, and we are equally impressed and grateful for her commitment to help children in the U.S. and around the world. Shannon's fundraising is helping us cross the finish line in our race to help children grow and thrive," Lardner said.

Hall, who now weighs 128 pounds, said she would like to compete in another Ironman and qualify for the Boston Marathon.

"I wasn't happy with my time (in Ironman)" she said. "I ended up through my swim with leg cramps. I finished the swim by one minute less than what I needed. I'd like to do another one, because I don't feel like I did a good enough job."

Hall said she has learned you have to put yourself first.

"When I hit the floor, I make that me-time first thing in the morning," she said. "Then you can take care of everything else."

She said she couldn't have achieved completion of the Ironman without the support of her coworkers at Quantum Health.

"Their support was phenomenal," she said.