Course
31-mile loop around Blue Marsh Lake near Reading, PA — fields, woods, rolling hills and singletrack with less than half a mile of public road. The Ski Slope (240 ft of vertical) is the only major climb. 8:00 am start with a strictly enforced 9-hour limit (5:00 pm) and late-course aid cutoffs; a relay option is offered.
Key dates
- ★Race dayOctober 2027 · date to be announced
About
The Blues Cruise 50K Trail Ultramarathon circles the beautiful Blue Marsh Lake. The 31-mile loop is very runnable, with a varied terrain that includes fields, plenty of rolling hills, single track and less than .5 miles of public roadway. The "Ski Slope" is the only major climb (240 feet in vertical accent). We have one optional water crossing where you can choose to splash through or cross on a bridge. Our themed aid stations are well stocked and serviced by local ultra runners. The 9 hour (strictly enforced) time limit makes this the perfect race for those newer to trail or ultra marathons.
Save Blues Cruise 50K Trail Ultra 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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