Forbidden Run Fest logo

Forbidden Run Fest

Forbidden Run Fest is a running race on November 8, 2026 in Philadelphia, PA.

Date
November 8, 2026 (Race day is today)
Sport
Running

From the Organizer

Wissahickon Valley park is the crown jewel of the Philadelphia park system. It is over 2000 acres in size and features more than 50 miles of trails. The park combines natural beauty and history, with many historic buildings and bridges located within the park. The Forbidden Drive Trail is the most used and most know trail in the park. Over 1 million people use the trail every year and it was awarded PA Trail of the year in 2018. It is 5.45 miles long, 25 feet wide and features a max grade of 3%. The smooth gravel surface of the trail makes it a perfect choice for runners, who usually run on pavement, but would like to run in an area immersed in nature on a surface that is more forgiving than pavement. And for the trail runners, we keep it interesting by adding a few trail sections as well. Let's celebrate Philadelphia Parks by running the Forbidden Run Fest at the Wissahickon Valley Park. This race is limited to 750 runners, so please register early. We are looking forward seeing you at the starting line in November.

Events

13.1
10 Miler
10K

Race-Day Forecast

Live forecast from the U.S. National Weather Service.

Race day

Sunday, 11/8

High

60°

Low

42°

Conditions

Sunny

Chance of Rain

1%

Wind

5 to 10 mph

Sunrise 6:38 AMSunset 4:50 PMDaylight 10h 12m

About Philadelphia, PA

Population

1,582,432

as of 2023

City Elevation

86 ft

Nearest Airport

PHL

Philadelphia International Airport · 10 mi

Time Zone

Eastern Time

From Endurance Grid

A big city race. Expect multiple lodging options and plenty to do the day before.

Race Location

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at Forbidden Run Fest, put it on the calendar, and turn “someday” into a start date.

Today

Race day is here

Race
Forbidden Run Fest
Date
November 8, 2026

Get Ready for Race Day

Plan your training, log every workout, and track your progress all the way to race day in the Endurance Grid app.

The training calendar in the Endurance Grid app: the week plan and every day colored by sport
A Race Story in the Endurance Grid app: the finish photo and everyone who finished

Frequently Asked Questions

What is the Forbidden Run Fest?
Forbidden Run Fest is a running race held in Philadelphia, Pennsylvania on November 8, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
When and where is the Forbidden Run Fest?
Sunday, November 8, 2026 in Philadelphia, Pennsylvania at 900 Grakyn Lane. Check the event page for exact start times and wave schedules.
How do I register for the Forbidden Run Fest?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Forbidden Run Fest

Nov 8, 2026

Register