The Lions pulled to within one point twice late in the match, but Catonsville coach Eric Warm didn't have that much of a reason to worry.
After all, he boasts two of the best heavyweight wrestlers in the county in seniors in Calloway Lee (220 pounds) and Jordan Reynolds (285).
And both Comets came through with quick pins.
After Dulaney junior Andy Wall (195) recorded a first-period pin of Talil Rogers to trim the Catonsville lead 34-33, Lee, a state qualifer last year, needed only 10 seconds to deck David Wong.
Reynolds, a county and regional runner-up, was just as impressive, pinning Elmer Smith in just 16 seconds.
"If we have a match coming down to the wire, the team is just going to rely on those two and let them carry us," Warm said. "They are going to have very successful years. They work hard all season, play football, lift weights and train together."
The Comets built a 16-0 lead, thanks to pins from Mike Thome (106) and Andrew Southwell (113) and a decision by Kelly Lassiter (120).
But Dulaney took three of the next four bouts to make it 22-18, getting pins from fourth-place state finisher Dylan Ruiz (126), Jessie Beall (138) and Dan Matthews (145).
Later, the Lions managed to narrow the gap to 28-27 when Sean Hoffman (170) recorded a first-period pin of junior Kojo Danquah, a junior varsity county champ last year.
Catonsville senior Adam Dye (182) pushed the advantage to 34-27 with another first-period pin before Dulaney's Andy Wall picked up a fall in 1:23.
Lee and Reynolds dominated, however, to help the Comets secure the victory.
"We knew we had to have a lead going into the last two because they had two very, very good kids," Dulaney coach Desi McNelis said.