For the eighth straight year, Hereford's girls prevailed at the Baltimore County track and field championships at the Maryland National Guard's Fifth Regiment Armory.
The No. 2 Bulls prevailed in a star-studded field that included four teams ranked in the top 10 of The Baltimore Sun poll and six in the top 15.
In the boys meet, No. 9 Dulaney ended top-ranked Hereford's streak of county championships at four straight.
The Lions won their first county title since 2008 in a field that included two teams ranked in the top 10 and four in the top 15.
Before the 1,600-meter run early in the meet, Hereford girls coach Brad Duvall said: "This is going to be a clinching race for us."
He proved to be prophetic, as the Bulls scored 20 points in the event and built a lead they never relinquished.
"Once that happened I was pretty confident," said Duvall, whose squad finished with 89 points.
No. 9 Milford Mill (78), No. 8 Western Tech (64), No. 4 Dulaney (44) and Franklin (40) rounded out the top five.
Senior Sarah Ashwood overtook Dulaney's Isabel Griffith in the final 100 meters and won the 1600 in a personal-best time of 5:09.60.
Griffith clocked 5:09.90 and Ashwood's running mates Erin Causey and Sarah Coffey were third and fourth for the champions.
"My strategy was to stay with her [Griffith] the whole time and kick at the end," Ashwood said. "She kept the pace. It was awesome. She's a great runner."
Griffith came back and won the 3,200-meter dash in 11:25.50.
Western Tech senior Sharon Dorsey also had an outstanding meet, setting a meet record in the 300 (40.70) and winning the 500 (1:18.50).
Dorsey's Wolverine teammate, Rebeka Holt, broke a meet record in the 800, previously set by Dulaney's Amanda White in 1993.
The Milford Mill girls were led by individual champions Toni Brown (55-meter dash) and Medinah Spencer (55-meter hurdles).
Franklin's Olivia Gruver set a meet record in pole vault (12 feet, six inches) and her Indian teammates Amanda Murphy and Christine Agoris went one-two in shot put.
Randallstown's Janae Ogelsby won the high jump.
Hereford's quartet of Melissa Meehling, Lacey Brown, Alicia Kozlowski and Meghan Anderson set a positive tone for the night by capturing the 3,200-meter relay.
Milford Mill won the 1,600-meter relay and Western Tech won the 800-meter relay.
The Dulaney boys captured its first title since 2008 with 71.50 points. They were followed by: No. 1 Hereford (62.50), Franklin (55), New Town (43), Catonsville and Milford Mill (tie-30).