Course
10K10 km
5K5 km
Key dates
- ★Race dayOctober 2027 · date to be announced
Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.
About
The Mariner's Bethel Trail Run sends runners onto trails at Assawoman Wildlife Area near Bethany Beach, Delaware, with 10K and 5K options plus a shorter fun run. Now in its 20th year, it's one of the Delaware coast's longest-running trail events.
Your next race, seen from above.
Save Mariners Bethel Trail Run 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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Save Mariners Bethel Trail Run 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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Delaware Distance Classic
One of Delaware's oldest certified 15K races
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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.