LUBEC, Maine — Will Guzick, a first-time visitor to Maine, is planning to climb Mount Katahdin on Monday. But he spent Sunday finishing first in a marathon.

Guzick, 24, is a Manhattan consultant who had never been to Maine. He spent Saturday night camping at Herring Cove Provincial Park on Campobello Island, then was one of 800 runners who gathered for the first Bay of Fundy International Marathon and 10K.

By finishing in 2 hours, 50 minutes, 51 seconds, Guzick set the pace for the inaugural event, a two-country, cross-border race. Guzick’s previous marathon wins, at Yonkers in 2011 and at Central Park last January, were closer to home.

Marathon runners ran from the lighthouse in Lubec, across the Canadian border to the lighthouse at the tip of Campobello, New Brunswick, then returned across the FDR Memorial Bridge to finish on Lubec’s waterfront.

There were 447 finishers in the marathon, and 270 more in the 10K. The 10K course stayed entirely within Lubec.

Guzick won the marathon by three minutes over Justin Leach (2:44:01) of Birmingham, Ala. “It’s a tough course,” Leach said. “I haven’t run anything tougher.”

In the marathon field of runners from 36 states and six provinces, the winning woman was a local runner, Sarah Mulcahy of Baring in Washington County.

“This marathon was very challenging course,” said Mulcahy, who finished in 3:16:22. “I missed my goal by a minute, but I’ll take it. It was awesome.”

Mulcahy is a newcomer to marathons in Maine. She found the course “as hilly as the MDI Marathon” in Bar Harbor, in which she finished fourth in her second marathon last October. She placed high in the Sugarloaf Marathon in Kingfield last year, her first marathon.

Robert Ashby of Brunswick, who finished third in 2:48:31, was the top Maine male finisher.

Runners enjoyed cool temperatures and a breeze off the water as they tackled the hills across Campobello. Several noted that they spotted whales near the Head Harbour Light, where they turned back toward Lubec.

They were supported along the course by more than 100 volunteers from both Lubec and Campobello, and hundreds more spectators. “I heard too many times that I was on the last hill,” one North Carolina marathoner said. “I didn’t believe that until I was heading back on the bridge.”

ln the men’s race, Justin Leach of Birmingham, Ala., finished second in 2:44.01 while two other Maine runners, Eric Mauricette of Old Town (2:56:27) and Nathan Priest of Portland (3:04:51), finished fourth and fifth respectively.

Rounding out the top 10 in the men’s field were: Jonathan Corso of Decatur, Ga. (3:05:11), David Nevitt of Dartmouth, Nova Scotia (3:10:22), Dan Doherty of Westford, Mass. (3:10:54), Jordan Moore of Quincy, Mass. (3:12:37) and Spencer Newell of Corvallis, Ore. (3:13:07).

In the women’s race, Brenda Guitard of St. John, New Brunswick (3:22:53) and Rosalie Malsberger of Boston (3:25:53) finished second and third, respectively.

Rounding out the top 10 were: Tracey Cote of Oakland (3:30:02), Karen Cook of Colchester, Conn. (3:32:24), Katherine Gibson of Bangor (3:32:57), Stephanie Allard of Perry (3:33:35), Anna Gannett of East Sandwich, Mass. (3:34:27), Johanna Stickney of Gardiner (3:34:31) and Glenda Adams of Austin, Texas (3:34:47).

In the 10K, Jeffrey Griffiths of New Richmond, Ohio, raced home to a first-place finish of 34:34 to win the men’s race while Carolyn Pfalzgraf of Boston won the women’s race and was the fifth overall finisher with a 38:13 clocking.

Gaining top five finishes in the men’s race were Brian MacIlvain of Boston (34:53), Frank Pittman V of Atlanta (35:53), Paul Gannett Jr. of East Sandwich, Mass. (37:58) and Jonathan Aretakis of Pembroke (40:53).

Trailing Pfalzgraf and finishing in the top five in the women’s division were Faye McKenna of Amsten, Conn. (44:29), Jessica Luke of Brimfield, Mass. (45:41), Catherine Kropp of Lubec (47:43) and Kasara Gage of Dover, N.H. (48:00).

Complete race results are available at: