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Thirty-five competitors start off on the 2025 Duff Dog Backyard Ultra challenge Saturday, Oct. 11, at 8 a.m. in the Blue Mounds State Park. Greg Hoogenveen/Rock County Star Herald Photo
Thirty-five competitors start off on the 2025 Duff Dog Backyard Ultra challenge Saturday, Oct. 11, at 8 a.m. in the Blue Mounds State Park.

Local runner wins ultra challenge

Thirty-five athletes competed in the 2025 Duff Dog Backyard Ultra challenge Saturday, Oct. 11, through Sunday, Oct. 12, in the Blue Mounds State Park.

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