Run With The Deer Flies 25K, 15K & 8K
About this 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 single-track trails, pipeline roads, swamps, hills, and creek crossings. Aid stations approximately every four miles, but carrying water is strongly recommended. Post-race Bona's Pizza compliments of Steve Pagano.
The Deer Fly benefits Indiana County Parks & Trails and Citizens' Ambulance Service.
Finishers' medals courtesy of Bethany Serafin Awalt of Valley Village Oral Surgery of Pikesville, Maryland, Plus random drawings for eight $25.00 Luigi's Ristrarnte gift cards, four for the 8K, four for the 15K and four for the 25K, compliments of Luigi's and Bernadette Drew, Bel Air, Maryland.
Deer Fly Swatters, a Deer Fly tradition, are being supplied by Chris Sharbaugh, Indiana Chiropractic Clinic, Indiana, PA.
Races are each capped at 100 runners. Please register early to avoid disappointment.
Race shirts are provided courtesy of Allied Milk and are guaranteed to those who register by July 14, 2026. Shirts are available after that date and on race day only as supplies last.
No rain date. No refunds or deferrals if the race is conducted.
Pick your distance
Trail running
Run With The Deer Flies 15K Trail Run
Run With The Deer Flies 25K Trail Run
Run With The Deer Flies 8K Trail Run
Typical race-day weather
Based on 9 years of Open-Meteo archive data for this event's race dates in Penn Run, plus the 3 days either side.
The sun rises at 6:07 AM and sets at 8:37 PM local time (EDT) in Penn Run on July 26, 2026 — 14h 29m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Other races near Penn Run
Different organizers, within 40 miles, in the next three months
Love of Life 5K Run/Walk
It's A Wonderful 5K
Quarry Shack 5 Miler 6th Annual 10/31/26
Red, White and Run 4k for Veterans
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 3 Penn Run events
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