She says she won "the Mother's Day lottery."
Dyer, the winner of the Honorary Bat Girl Contest for the D-backs, threw out the ceremonial first pitch before Sunday's game against the Giants. One of 30 winners across the big leagues, Dyer took part in pregame activities, was honored during an on-field ceremony and was given pink merchandise along with two tickets to the game. Winners were selected by a panel that included Major League Baseball players and celebrities in addition to fan votes cast on HonoraryBatGirl.com.
"So many of the other girls from the other teams have all reached out and we've been talking about how excited we are," said Dyer, from Mesa, Ariz. "This is incredible."
Dyer's husband, John, son, Chris, and mother, Diane, accompanied her to the game.
Dyer, who has been free from cancer for more than 2 1/2 years, was diagnosed with breast cancer in November 2008 and later had a double mastectomy. A vocal advocate, Dyer has walked in the Arizona Susan G. Komen 3-Day and volunteered as a community outreach ambassador for Komen Arizona. She is also proud member of Pink Links, a breast-cancer survivor group.
Dyer has gained a reputation for her positive attitude. When she started losing her hair after rounds of chemotherapy, she opted to host a head-shaving party and wore a pink mohawk for the day.
"I was always that person that said cancer happens to somebody else," Dyer said. "When I was diagnosed, I made it my passion that nobody else would have to go through this. I know people will, but if I can make a difference, I will."