For the Wayland girls’ swimming team, it was worth the wait.

The Warriors captured the Division 2 state title — their first since 2014 — at Boston University on Saturday.

In a neck-and-neck race with two-time defending champ Duxbury, the Warriors had to wait nearly 45 minutes after the final swimming event before the final results were announced.

When the dust cleared, Wayland emerged victorious with 253.5 points. Duxbury was close behind (248), followed by Weston (193.5).

“We weren’t necessarily expecting it,’’ said Wayland senior Emma DiIanni.

“It was such a great moment to have.’’

Duxbury won the opening event, posting a 1:49.55 in the 200-yard medley relay. The lead was short-lived, as Wayland took over first place in the next event, the 200 free, and never looked back.

Duxbury cut into Wayland’s lead in the final swimming event of the night, the 400-yard freestyle relay. The Dragons (3:39.58) edged the Warriors (3:39.77), cutting Wayland’s lead to 25.5 points.

Both teams had to wait for the conclusion of the 1-meter diving event for a champion to be crowned.

Wayland sophomore diver Hilla Almog’s ninth-place finish was good enough to help the Warriors hold on for the victory as Duxbury had picked up points with a fourth (Erin Murphy), eighth (Tierney Reagan), and 14th (Meredith Gillis).

“It was nerve-wracking to the end, not knowing how exactly diving was going to play out,’’ said Wayland coach Mike Foley.

“We knew we swam great and had a little bit of a lead, and felt that if Duxbury won that last relay we could still hang on.’’

Foley joked that he gained a few gray hairs during the night. He commended the team for building as the season went on.

“This was not even in our realm of discussion three months ago,’’ Foley said. “These girls just kept getting better and better.’’

Dover-Sherborn freshman Ava Yablonski was the night’s only double winner. Yablonski picked up state titles in the 100 butterfly (57.39) and the 100 backstroke (55.96).

“I’ve practiced a lot and trained hard so I’m proud of the outcome,’’ Yablonski said. “I’m excited for next season.’’

Both the Division 1 and Division 2 meets began with a moment of silence for longtime Acton-Boxborough boys’ and girls’ swim coach Jeff Johnson, who passed away Friday at the age of 73.

Division 1 — Perfection is nothing new for the Westford Academy girls’ swim team.

The Grey Ghosts blew past the competition Saturday at Boston University, amassing 439.5 points to win their fourth straight Division 1 state title. Concord-Carlisle (186 points) finished second, while Minnechaug (171) came in third.

Westford’s victory caps a four-year run without a meet loss — regular season or postseason as the Grey Ghosts’ four seniors — Samantha Blanc, Ada Ferrick, Jessica Leong, and Anika Svoboda — finished their careers undefeated.

“We haven’t had a class do that yet,’’ said Westford coach Caitlin Klick-McHugh, in her 14th year at the helm.

“I’m really proud of all the girls, especially the seniors.’’

The Grey Ghosts swept the relays, setting a meet record in the 200-yard freestyle relay (1 minute 37.34 seconds), and winning the 200 medley relay (1:47.18) and 400 freestyle relay (3:36.41).

No Westford swimmer won an individual event, a repeat of last week’s North sectional championship victory at MIT.

“It really shows what a team sport swimming is and what a great team these girls are when they combine,’’ Klick-McHugh said.

Svoboda was a part of each of the three winning relay teams.

“It’s crazy,’’ Svoboda said. “Growing up with this team, I’ve developed so much as a swimmer and gotten so close to [my teammates].’’

Triton senior Maggie Summit set the state record in the 50-yard freestyle (23.30) and won the 100 free (50.88).

“That was a great way to end [my career],’’ said Summit, who will swim at the University of Minnesota.

Triton finished fourth with 130 points.

Silver Lake junior Alexa Connors picked up gold in the 200-yard freestyle (1:50.84) and 500 free (4:53.14), while Grafton/Nipmuc senior Samantha Kilcoyne won the 100-yard backstroke (58.26), and 100 butterfly (55.41).

Matt MacCormack can be reached at matthew.maccormack @globe.com.