The Blues Cruise 50K Trail Ultramarathon returns to Reading, Pennsylvania on October 4th, marking its 21st year as a cornerstone event for endurance runners in the region. The race begins at Blue Marsh Lake and follows a challenging but scenic route that circles the lake over a distance of 31 miles. Participants can expect varied terrain with woods, fields, rolling hills, single-track trails, and some paved roads along the way. On race morning, participants will gather around dawn in Reading to begin their journey around Blue Marsh Lake. The weather typically features mild temperatures ranging from an average low of about 8.8°C to a high of approximately 19.3°C on October mornings. Runners should prepare for possible light precipitation and moderate humidity during the event's timeframe. Blues Cruise is not just any race; it carries significant weight within the local running community, having run continuously since its inception in 2006. The event supports a cause that resonates with endurance athletes across Pennsylvania—sustaining trails and promoting healthy lifestyles through rigorous competition. Each year sees hundreds of runners from various backgrounds participating, making this more than just an ultramarathon but also a celebration of trail running culture. The course for Blues Cruise winds around Blue Marsh Lake on mostly unpaved terrain, offering scenic views and testing the endurance limits of participants with its rolling hills and varied surfaces. Aid stations are strategically placed along the route to cater to runners' needs throughout their journey, including water crossings that can be managed either by splashing through shallow waters or taking an optional bridge detour. On race day, temperatures will likely hover around 14°C in Reading, Pennsylvania, with humidity levels at about 67.4%. The chance of light rain is present but not substantial enough to discourage participation; participants should consider bringing appropriate gear for such conditions as a precautionary measure. Trail surfaces are expected to be firm and slightly soft underfoot.
50K 50K • Start: 08:00:00 • Fee: $115.00
Blues Cruise Relay Start: 08:00:00 • Fee: $95.00
Registration for the event can be completed online via [https://ultrasignup.com/register.aspx?did=134393](https://ultrasignup.com/register.aspx?did=134393). The standard entry fee is $115.00, while relay participants pay a reduced rate of $95.00 per person when registering as part of their team before the deadline. Participants must collect their race bib at the designated pickup location on October 2nd to ensure they have all necessary materials for race day. Bib pickup will be held between 1:00 PM and 7:00 PM, with early pick-up available from noon onwards if required. Runners should bring a photo ID and proof of registration. The start line is located at the Blue Marsh Lake Recreation Area on Palisades Drive in Reading, Pennsylvania. All runners must adhere to age requirements set by race organizers; no specific minimum age has been established but participants are expected to be capable ultramarathon athletes due to the course's difficulty level. First-time attendees should familiarize themselves with the detailed route map and plan their gear according to weather forecasts. The Blues Cruise 50K Trail Ultramarathon in Reading, Pennsylvania on October 4th is an event not to miss for serious trail runners seeking a challenging yet rewarding experience around Blue Marsh Lake. The race's reputation among endurance athletes underscores its importance as a test of skill and perseverance against nature’s elements.
Races Offered
50K
Oct 04, 2026
straighten
Distance —
50K
terrain
Type —
Running
timer
08:00
sell
$115.00
Blues Cruise Relay
Oct 04, 2026
straighten
Distance —
50K
terrain
Type —
Running
timer
08:00
sell
$95.00
Weather History
These values represent the 3-year monthly averages for October in Reading.
thermostatTemperature
8.8° / 19.3°
wb_sunnyFeels like
6.2° / 16.7°
light_mode
Avg sunshine hours
9h 7m
water_drop
Avg rainfall
1.8 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
10.0 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.0)
humidity_mid
Humidity
67.4%
wb_twilight
Sunrise
07:15
nightlight
Sunset
18:22
About Reading
Learn more about the host city, Reading.
Reading is a historic city of about 95,000 in Pennsylvania, about 50 miles northwest of Philadelphia, 35 miles southwest of Allentown and 55 miles east of Harrisburg. It punches above its weight in culture, and its downtown features some iconic buildings, so consider making it a stopover on your way between any of these and other area cities.