"It was just a very emotional moment because you know your child's dream came true," Kathi said a little over a year later. "The tears couldn't stop."
Now, a week before Mother's Day, the Phillies chose Kathi as the mom they will honor in an annual pregame ceremony.
Each year, the Phillies choose a mother of a player to honor on the Sunday home game closest to Mother's Day. Last year, it was Darin Ruf's mom, Mary. Before that, Domonic Brown's mother, Rosemary Joseph Woods, was the honoree.
On Sunday, Kathi will throw out the first pitch to Cameron -- just like she always imagined.
"When Cameron made it to the big leagues, I had it in the back of my mind, 'Wouldn't it be cool for me to throw a first pitch to Cameron?'" she said. "Never ever did I think this day would come."
"It's pretty special," Cameron added. "How many people get to say their mom has thrown a first pitch to them?"
A mother throwing a first pitch to the son she helped raise into a Major League ballplayer may seem like a story coming full circle with a perfect ending. But the journey is hardly over.
It's a goal of Cameron's parents to see him play in all 30 Major League stadiums. They've already checked a few off the list, including Citizens Bank Park, Chase Field and Citi Field. Kathi said they travel from their Texas home about once a month to see their son play. In May, they're headed to Chicago to see him and the Phillies at Wrigley Field.
Once they've checked off all 30, they plan on framing the ticket stubs together.
"They both support me more than I can ever ask for," Cameron said. "I can't thank them enough. … Them willing to be everywhere I am is pretty cool."
Evan Webeck is a reporter for MLB.com based in Philadelphia.