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More than 2,000 athletes participated in three Door County Triathlon events. Photo by Len Villano.
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Hot pink swim caps are used specifically to improve swimmer visibility for lifeguards. Photo by Len Villano.
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The swim is often the most challenging for participants not used to open water or crowded fields of swimmers. Photo by Len Villano.
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The swim portion of the event takes place in the waters of Horseshoe Bay south of the village of Egg Harbor. Photo by Len Villano.
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Volunteers help participants strip off their wetsuits after the swim leg of the race.Photo by Len Villano.
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The event includes a 56-mile bike route that takes riders into the Sevastopol countryside. Photo by Len Villano.
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Some competitors take things less seriously than others. Photo by Len Villano.
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For many participants the 13.1-mile run leg in the sun is the hardest part of the event. Photo by Len Villano.
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Van Lammers won the 2018 Door County Half Iron Triathlon. Photo by Len Villano.
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Katie Horner takes first place among women at the 2018 Door County Half Iron Triathlon. Photo by Len Villano.
Triathlon MDJ 4
A thick fog in Sturgeon Bay lifted just before Half Iron competitors hit the city Sunday, Photo by Myles Dannhausen Jr.