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ChesLen Chase for Open Space

ChesLen Preserve | Sat, October 19, 2019, 11:00am - 2:00pm

Run for nature at Natural Lands’ annual ChesLen Chase for Open Space, with 10K, 5K, and 2-mile Fun Run-Walk! The challenging trail runs include steep hills, creek crossings, woodlands, and open fields.

The fun continues after crossing the finish line! The post-race party features live music, craft beer, food, and an awards ceremony.

Race day registration:
Saturday, October 19, 9:30 – 10:45 am at ChesLen Preserve’s Lenfest Center, 1199 Cannery Road, Coatesville, PA 19320

  • 10K Trail Run – 11:00 am
    $35 Pre-registration (on or before October 2), $40 Late and Race Day Registration (after October 2)
  • 5K Trail Run – 11:15 am
    $35 Pre-registration (on or before October 2), $40 Late and Race Day Registration (after October 2)
  • 2-Mile Fun Run-Walk – 11:20 am
    $25 Pre-registration (on or before October 2), $30 Late and Race Day Registration (after October 2)
  • Youth 12 and Under (10K, 5K, and 2-Mile)
    $20 Pre-registration (on or before October 2), $25 Late and Race Day Registration (after October 2)

Natural Lands members receive $5 discount!
Choose your correct category during on-line registration. (Not a Natural Lands member yet? Join Today!) Natural Lands Members, please enter the code that was emailed to you. Discounts cannot be combined. Only one discount per participant, and no discount for kids special pricing.

Packet Pick-up:
Bibs, T-Shirts and Fundraising Rewards, can be picked-up on:
Friday, October 18th, 5:00 – 7:00pm at Bryn Mawr Running Company in West Chester, PA
Race Day, Saturday, October 19th, 9:30 – 10:45am at ChesLen Preserve’s Lenfest Center

Fundraising: New 2019
By becoming a fundraiser, not only will you help further Natural Lands’ mission of saving open space, caring for nature, and connecting people to the outdoors, you’ll be eligible for fantastic incentive rewards too. You don’t need to be a fundraising expert to be successful at it—you just need a desire to help preserve nature’s wonders for generations to come.

Become a sponsor:
Interested in joining other business, civic, and philanthropic leaders to support Natural Lands’ regional priorities for saving open space, caring for nature, and connecting people to the outdoors?

Contact Becky Rennix at brennix@natlands.org or 610-353-5587 ext.214 or download the sponsorship form.

The 2019 ChesLen Chase Race T-Shirt is included with registration! Guarantee your shirt size by registering before Wednesday, October 2nd!

Teams must have a minimum of 5 people; 8 or more receive a $5 per-person discount. All teams and team members must register online.

Post-race Party:
The post-race party at ChesLen’s Lenfest Center features music, craft beers from 2SP Brewing Company, food, awards ceremony, and more!

Race Day Giveaways:
All registered participants receive a free race t-shirt, munchies, and 1 craft beer from 2SP Brewing Company (over 21 only)!

Chip timing services provided by Bryn Mawr Racing Company. Results will be posted on Bryn Mawr Racing Company and Natural Lands’ websites.

* 2-Mile Fun Run-Walk not timed

We’re looking for cheerful volunteers to help with all aspects of this rugged, exciting trail race. All race-day Volunteers receive a FREE T-shirt, 1 free beer (21 and over), and munchies, all while supporting one of Natural Lands’ largest outreach events of the year!


  • Overall Awards: Top Male and Female finisher in both the 5K and 10K races
  • Age Group Awards: Top Three Males and Females in both 10K and 5K races in the following age groups: 12 & Under, 13-19, 20-29, 30-39, 40-49, 50-59, 60 & Up
  • Team Awards: Top overall team in both 10K and 5K races
    (*no awards for 2-mile fun run)


ChesLen Preserve
1199 Cannery Road
Coatesville , PA 19320


October 19, 2019
11:00am - 2:00pm

ChesLen Preserve is the largest privately owned nature preserve open to the public in Chester County. Miles of marked hiking trails lead visitors through shady woodlands, flower-filled meadows, fields of corn and soybeans, and stream valleys.

Visitors can also explore Ollie Owl’s NaturePlayGround, where young explorers can climb logs, build stick tee-pees, hunt for bugs, explore small streams, and get a little dirty, tired, and inspired. Free play is encouraged and is a great way for kids to gain an appreciation for nature.

Please note, if arriving via Route 842, Cannery Road will be closed to vehicular traffic beginning at 10:45 am, and will remain closed until all runners have finished. Anyone arriving after 10:45 am will be redirected to Route 162. Vehicles will be permitted to enter Cannery Rd from Rte. 162 and travel up as far as the race site at the Lenfest Center.

Thank you to our sponsors!

Events may be cancelled due to inclement weather or low registration. In that case, we will make every effort to update our website and contact registrants. Note that we cannot offer refunds of paid registrations or ticket purchases, but rest assured that your donation will help us in our work to save open space, care for nature, and connect people to the outdoors.

Photography policy:
Attendance at Natural Lands programs and events constitutes consent to be photographed for use in print and electronic media. Images will not be identified using full names without written approval from the individual. Please notify Natural Lands staff if you would prefer that your photo not be used.