HAMPTON — It wasn't a personal best, but Betsy Garnick's time in the 100-meter hurdles on Friday was good enough to break a state record that stood for 24 years.

The junior from Bishop Guertin of Nashua won the event with a time of 14.48 seconds, edging the mark of 14.52 set by Alison Poulin of Oyster River of Durham in 1988. Garnick's effort highlighted the Division I Track and Field Championships at Winnacunnet High.

“It feels great. I wasn't expecting it,” said Garnick, a Pelham resident. “That wasn't a goal. I was just feeling good.”

In the team scoring, it was Pinkerton Academy of Derry that won the boys' competition and Exeter that won the girls'. It was the first title for the Astros since 1984 and the first-ever title for the Blue Hawks' girls team.

Exeter won with a score of 94 points. Bishop Guertin of Nashua was second with 89 and Londonderry took third with 74.

“It's great, just great,” said Exeter coach Jeff Holmes, whose team was runnerup four of the last six years. “We knew we had a chance to win it. We needed some great performances.”

►Photo gallery: Div. I track championships

► Lancertiming.com: Complete results from the meet.

He didn't have to look far for one of those great performances. His daughter, Hillary Holmes, won three events (300 hurdles, long jump and triple jump) and accounted for 38 of the team's 94 points.

Pinkerton finished with 67 points. Nashua North took second with 58 and Londonderry rounded out the top three with 47.33.

Garnick set a personal record two weeks ago at a meet in White Plains, N.Y., with a time of 14.4 seconds, a meet record. She claimed another record with her performance on Friday.

Garnick said she hadn't been focusing much on the hurdles this spring. This week, she did, especially getting her leg down quicker after clearing the hurdle, and the extra work paid off.

“I think that was it for me,” Garnick said.

She also finished second in both the 100-meter dash and the 300-meter hurdles, as well as sixth in the 200-meter dash.

It was the only state record broken at the meet. One meet record was broken and another was tied.

Dylan Lafond of Manchester Central set the mark in the 3,200-meter run with a time of 9 minutes, 15.63 seconds, besting the mark of 9:18.69 set by Cory Ahern of Bishop Guertin in 2006.

Lafond was pleased with his time, but was hoping for more.

“I wanted to break the state record,” Lafond said. “I wanted to at least run a 9:13 and break the school record.”

Two people tied the high jump record of 6 feet, 6 inches. They were Kevin Shea of Nashua South and Jeff Taylor of Manchester Memorial.

Shea also won the triple jump (43-1.75). Other multiple winners included Michael Lynch of Nashua North in the shot put (50-1.75) and discus (143-11), Jerickson Fedrick of Salem in the 100 (10.95) and 200 (22.28) and Arashana Yanes of Nashua South in the 100 (12.48) and the 200 (26.35).