Isaac has followed Brand since high school and has traveled to Lexington, Texarkana and Virginia Tech, when he got to play in the NCAA regional with the Marshall team.
"The Marshall program has been really good to Christian," she said, "and now this is just the ultimate for him."
Isaac said getting to watch him in the tournament has been wonderful.
"Yesterday, when the fans came out, it was overwhelming," she said. "When he came on the 17th fairway and they screamed 'We are Marshall,' it was the best. We just appreciate how good this whole state has been to him."
Brand's biggest fan actually might be on the course with him. His caddy, Bosten Miller, is a former golf teammate and the young men have been friends for years.
"Bosten [Miller] and him are very close friends. They've been friends since junior golf," Teresa Brand said. The two men made a pact that whoever won the State Amateur would have the other as his caddy for The Greenbrier Classic.
Teresa Brand said that having Miller on the course with her son is the "perfect pairing. He knows what to say when he needs a little extra encouragement, and he knows his game. It's the best situation."
Although Christian Brand did not advance Friday, the day at least included a chuckle.
On the 2nd hole, Brand hit a ball into the crowd, striking his aunt, Stephanie Rucker, in the calf.
"I tried to stay really still and people were saying, 'You just got hit,'" she said with a laugh. "I didn't want Christian to know that he just hit me."
The family planned to tell him after he'd finished the round, but Rucker said she doesn't care about the minor injury.
"That is a souvenir I will have for life," she said with a smile, "and I'm very proud of it."
Later Friday night, at the West Virginia State Fairgrounds in Ronceverte, Greenbrier Classic guests attended a performance by the Black Eyed Peas.
"It's great to have a big name here in West Virginia because it's the kind of music that gets people's attention," said Jonathan Michael, 22, of Beckley. "When they come to events like The Greenbrier, it lets them see there's much more to the state than at first glance."
Peas frontman will.i.am. played to The Greenbrier crowd, and mixed the words "West Virginia is beautiful" into one song. He also became a DJ, throwing out old hits from Nirvana and Journey.
Staff writer Mackenzie Mays contributed to this report. Reach Kathryn Gregory at kathr...@wvgazette.com or 304-348-5119.