When does the Run With The Deer Flies 25K, 15K & 8K sell out?

Run With The Deer Flies 25K, 15K & 8K hasn't published a hard registration deadline. Most races of this size raise the entry fee in tiers (early-bird, regular, late) and can sell out without warning — sign up early if you're committed.

Trail

Charity

Run With The Deer Flies 25K, 15K & 8K

Q: How hard is the Run With The Deer Flies 25K, 15K & 8K 5K?

Run With The Deer Flies 25K, 15K & 8K is a 5K on a trail course in Penn Run, Pennsylvania. We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.

Q: What should I wear for the Run With The Deer Flies 25K, 15K & 8K?

Race-day weather in Penn Run can swing year over year, so dress for the forecast on the day. As a rule of thumb, dress for ~10°F warmer than the standing temperature once you start running. Layer with a throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, and a singlet plus a visor when it climbs above 60°F. The published start time is 8:00 AM. Check the race-day weather forecast on this page closer to the date for a specific recommendation.

July 26, 2026

Penn Run, Pennsylvania

Rolling Course

Decision scores

Six 0–100 scores telling you, at a glance, who this race is for.

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Best for

Great for beginners

Big local vibe

Charity race

Trail / hill challenge

About the Race

The 2026 Run With The Deer Flies 25K, 15K, and 8K will be held on Sunday, July 26, 2026. Three distances to choose from, including the 8K that was added last year. This proved to be a popular addition for new trail runners as well as those who would like a shorter distance. We are looking forward to returning to Camp Seph Mack near Penn Run, PA and hope to see you there. The Deer Fly is directed by trail runners for trail runners. The Deer Fly is a fun and challenging trail race with a mix of...

Course Profile

Course profile data unavailable for this race.

Course features

Terrain

trail

Surface

Trail

Elevation gain

Not measured

Course type

Not stated

Field size

Unknown

Boston qualifier

Course map

Not yet published

Elevation profile

Not measured

Accessibility & inclusion

Walker-friendly

Stroller-friendly

Dog-friendly

Kids race

Vibe & community

charity

Charity race.

History & past results

Years running

Unknown — claim to add

Recurrence

Annual (assumed)

Past finisher times and year-over-year participation will appear here once the organizer publishes them.

Reviews

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Common questions

How hard is the Run With The Deer Flies 25K, 15K & 8K 5K?

We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.

What should I wear?

Dress for ~10°F warmer than the standing temperature once you start running. Throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, singlet plus visor when it climbs above 60°F. The race-day forecast above is the source of truth closer to the date.