Course
Two identical loops covering nearly all of Susquehanna State Park, with roughly 4,300 ft of elevation gain. The surface is single-track trail mixed with open fields, dirt roads and a small amount of blacktop. Four stream crossings require wading. Start, finish and race HQ are at Steppingstone Farm Museum, with multiple staffed aid stations.
Key dates
- !Entries openFri 27 Nov 2026 · in 5 weeks
- ★Race daySat 20 Mar 2027
About
Now in its fourth decade, the HAT Run 50K starts and finishes at the Steppingstone Farm Museum in Susquehanna State Park near Havre de Grace, Maryland. The course mixes singletrack trail with open fields and dirt roads, with minimal pavement, and is a season-opening staple for mid-Atlantic ultrarunners.
Save HAT Run 50K to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Annapolis Running Festival
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Rosaryville Half Marathon, 10K and 5K
Trail loops through Rosaryville State Park, Maryland
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.