The Delaware and Lehigh National Heritage Corridor's Annual Heritage Half Marathon Run from historic downtown Bethlehem to Easton, most of which is on the beautiful D+L Trail. Must be able to complete half marathon distance in 4.5 hours. Minimum age 14; under 18 requires parent or guardian permission. Field limit: 1,350 combined for all half-marathon categories.

The Delaware and Lehigh National Heritage Corridor's Annual Heritage Half Marathon Walk from historic downtown Bethlehem to Easton, most of which is on the beautiful D+L Trail. Select this option ONLY if you will commit to walking EVERY step of the race. No running! Please choose the run/walk category if you plan to combine walking and running -- even if you plan to run only the last stretch to the finish. (We will have race marshals on the course and will disqualify any walkers seen without at least one foot in contact with ground at all times.) You’ll complete the same half marathon course at your walking pace and receive the same swag and amenities as the runners. We have set a walking time limit of 4.5 hours to minimize congestion on the trail with the marathoners coming from Allentown. And we will have a 4.5-hour pacer. However, if you need a bit more time, the course will remain open for the marathoners. Minimum age 14; under 18 requires parent or guardian permission.

Select this category if you will combine running and walking the half marathon event. Your result will be timed as a runner. If you will commit to ONLY walking, please select the walking category. Must be able to complete half marathon distance in 4.5 hours. Minimum age 14; under 18 requires parent or guardian permission.

The Lehigh Valley's marathon! Run a USATF-certified, Boston-qualifying course from downtown Allentown (including some miles in Little Lehigh Parkway) to Easton, much of which is on the beautiful D+L Trail. The D+L Trail follows the Lehigh River for a net downhill course with a maintained surface of fine gravel or macadam. Must be able to complete marathon distance in 6.5 hours. Minimum age 18. Field capped at 500 racers in 2026.

Create a five-person team to tackle the marathon distance. The relay course mirrors the full marathon course: downtown Allentown to downtown Easton. Visit race.delawareandlehigh.org for leg lengths and exchange locations. (Relay teams are responsible for their own transportation to exchange points and back to the start.) Relay captains must be 18 years of age or older. Participants must be over the age of 10 to join a relay team. Field capped at 85 teams in 2026.

Corporate Relay Challenge
The Corporate Relay Challenge is a special division within the Marathon Relay. Teams registered in the Corporate Relay Challenge will compete for the title of Fastest Corporate Relay Team and an exclusive grand prize package featuring an unforgettable experience at an IronPigs game:

• Access to a private suite
• 18 game tickets
• 3 parking passes
• Ballpark catering included

Prize Redemption: The winning team’s suite experience must be redeemed during April–May of the 2027 IronPigs season.

Corporate Relay Challenge registration includes eligibility for the prize package.

***Standard Marathon Relay registration will remain available for teams not participating in the challenge.

Create a five-person team to tackle the marathon distance at a discounted rate! The relay course mirrors the full marathon course, taking you from downtown Allentown to downtown Easton. Visit race.delawareandlehigh.org for leg lengths and exchange locations.
Student Relay teams receive $75 off the regular relay registration price. This discount is available to currently enrolled high school, college, trade school and university students through registration close. Participants may be required to provide proof of current enrollment upon request. Failure to provide valid proof of enrollment may result in the registrant being charged the difference between the student and standard registration rates.
Relay teams are responsible for their own transportation to exchange points and back to the start. Relay captains must be 18 years of age or older.