U.S. Biathlon - Grace Castonguay college champ

Jackson’s Grace Castonguay (center) successfully repeated as national champion at the 2025 U.S. Biathlon Collegiate National Championship in Bozeman, Montana on March 27. She was joined on the podium by Emma Stertz of Grand Rapids, Minn.(left), and Hannah Chipman of Norwich, Vt./Dartmouth College. (COURTESY PHOTO)

BOZEMAN, Mont. — You can call Grace Castonguay a two-time national champion. The Jackson resident (Saint Michaels College) graduate and U.S. Biathlon Team member successfully defended her title at the 2025 U.S. Biathlon Collegiate National Championship in Bozeman, Mont., on March 27.

In biathlon, competitors race on skis and then attempt to hit five targets — 1.8 inches in diameter, 50 meters (164 feet) away — from a prone position. They then shoot from a standing position at targets that are 4.5 inches in size, and also 50 meters away.

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