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Ridley Creek State Park 25k

calendar_today 25 Oct, 2026

directions_run Running

sell $65.00

Ridley Creek State Park 25k

About the Event

The Ridley Creek State Park 25K returns to Glen Mills, Pennsylvania on October 25th, offering runners a challenging course through the historic grounds of Ridley Creek State Park. This event is known for its technical single-loop trail that winds through diverse terrain within the park’s expansive borders.
Race morning typically sees temperatures in the mid-teens Celsius with an average wind speed of around eleven kilometers per hour and moderate humidity levels at sixty-six percent. The course begins promptly at 7:00 AM, providing participants a clear view of Ridley Creek State Park's natural beauty as they navigate through its winding trails and past notable landmarks such as Pavilion #11 and the historic Hunting Hill Mansion.
Established in previous years, this race has become an integral part of the local running community’s calendar. The RCSP 25K not only challenges runners with technical terrain but also supports a cause close to many hearts. With consistent sell-out events each year, it showcases Glen Mills’ commitment to hosting competitive yet inclusive races that appeal to trail enthusiasts and ultrarunners alike.
The Ridley Creek State Park course is designed for both experienced trail runners and those seeking a challenge in scenic surroundings. Starting at Pavilion #11 and looping clockwise through the park's varied terrain, this single-loop layout presents approximately 25 kilometers of technical trails with significant elevation changes totalling around eighteen hundred feet. Runners will encounter short, steep ascents and rocky descents covered by roots along Ridley Creek’s winding paths.
Participants can expect three aid stations strategically placed at mile markers four, eight, and twelve, providing essential hydration and snacks such as water, GU Roctane energy gel, soda, and other trail-friendly treats. These stations are crucial for maintaining stamina throughout the five-hour race window, allowing athletes to push their limits while staying adequately fueled.
Weather conditions in Glen Mills during October average around 14.9 degrees Celsius with a minimum temperature of approximately nine point nine degrees Celsius and a maximum reaching nearly twenty degrees Celsius. Humidity levels typically hover at sixty-six percent, adding some moisture content to the air without being overly oppressive. The UV index averages four (moderate), requiring participants to protect their skin from sun exposure during race hours.
25K
25K  •  Start: 08:00:00  •  Fee: $65.00

25K | 25K
Registration for the Ridley Creek State Park 25K can be completed via the official website at https://ultrasignup.com/register.aspx?did=136588. The entry fee is set at sixty-five dollars, with registration closing once the event reaches capacity or up to two days before race day. Packet pickup will take place on-site near Pavilion #11 starting from 4:00 PM on Friday and all morning until noon on Saturday prior to the event.
Participants must check in for their bibs between these hours at Ridley Creek State Park, where they should present a printed or digital copy of their confirmation email. Age requirements are open to runners fifteen years old and up, though younger athletes may participate with parental consent under special circumstances as determined by race organizers.
The start location is situated near Pavilion #11 in Ridley Creek State Park on the morning of October 25th at precisely seven o'clock AM. For first-time attendees looking for guidance about what to expect, it’s recommended to arrive early and familiarize yourself with the layout around Pavilion #11 while also checking trail conditions beforehand.
The Ridley Creek State Park 25K in Glen Mills, Pennsylvania on October 25th remains a must-attend event for serious runners interested in tackling challenging terrain within a historic setting. This race not only offers competitive awards but also immerses participants in the rich natural and cultural heritage of Ridley Creek State Park, making it an unforgettable experience for those who love pushing their limits amidst scenic beauty.

Races Offered

25K

Oct 25, 2026

straighten

Distance — 25K

terrain

Type — Running

timer

08:00

sell

$65.00

Weather History

These values represent the 3-year monthly averages for October in Glen Mills.

thermostat Temperature
9.9° / 19.9°
wb_sunny Feels like
6.9° / 17.2°
light_mode Avg sunshine hours
9h 5m
water_drop Avg rainfall
1.4 mm
ac_unit Avg snowfall
air Avg wind speed
11.4 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
65.6%
wb_twilight Sunrise
07:13
nightlight Sunset
18:20

About Glen Mills

Learn more about the host city, Glen Mills.

Scenic view of

Glen Mills is an unincorporated community in Concord township and Middletown township, Delaware County, Pennsylvania, in the United States of America.

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Hotels & Places to Stay

Race Results

All-time top performances and historical records for Ridley Creek State Park 25k.

Place Name Year Time
🥇 Nicholas Geigle '24 1:49:23
🥈 Avery Lederer '24 1:53:06
🥉 James Weaver '23 1:56:30
4 Stephen Tucker '24 1:59:31
5 Joe Fricker '24 1:59:34

Runner Reviews

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