
All City 20 Miler (10 Miler too!) is a running race on October 31, 2026 in Philadelphia, PA.
From the Organizer
It's that time of year: we're inviting all Philly (and beyond) runners to run long with us!
On Saturday, October 31st - also known as Halloween - we’re partnering with Students Run Philly Style, Team Philly Race Training and the Philadelphia Marathon for the annual All City 20 Miler (10 Miler too)! Whether you are training for the Marathon, Half Marathon or just want to join the long run fun, we’ll have a fully supported course with pace groups and hydration stations along the way to keep you moving and fueled properly. The 20 and 10 mile runs will both start and end at Manayunk Crossing (3720-40 Main St, Philadelphia, PA 19127).
All are welcome to join! Costumes are encouraged and there might be a contest 🎃
** Please note: this is a FREE training run, not a race. Registration is encouraged!
More about us:
PHILADELPHIA RUNNER
Headquarters of the Philadelphia Running community, Philadelphia Runner is a hub for the fitness community in the greatest running city in the country. This city and the streets running through it define us, and our culture is built on the idea that working out can and should be fun, and it is always more fun when you are part of a vibrant community of like-minded people. We aren’t the fastest runners in the world – we come from a variety of backgrounds, but we are all passionate about running, fitness, and living a healthy lifestyle. Our stores are staffed by experienced runners who are eager to help fit you for the best shoes, apparel, and accessories to enable you to have the best workout possible, and hopefully some fun along the way! Learn more and shop with us online: https://www.philadelphiarunner.com
Students Run Philly Style
Students Run Philly Style (SRPS) transforms youth lives through mentorship over miles of long distance running and achievement and is proud to co-host the All-City 20 / 10 Miler. Each year, more than 350 adult volunteers mentor and coach hundreds of young runners from every zip code of the city to participate in Philadelphia Marathon weekend. Learn more at https://www.studentsrunphilly.org.
Team Philly Race Training
TEAM PHILLY Race Training was created to support the Philadelphia area’s beginner to intermediate runners in their aspirations of improving their running and living healthier lives. Powered by Philly legends Philadelphia Runner and The Rothman Institute, who bring their special expertise, resources, and services, this comprehensive and unparalleled program includes: running coaching/apparel, fitness cross-training and strength conditioning, educational workshops, and injury prevention and treatment. Learn more and join the team: https://www.teamphillyruns.com
Philadelphia Marathon
The Philadelphia Marathon is one of the top 10 marathons in the United States and includes a full marathon, half marathon, 8K and kids fun run. The race features the city’s most famous attractions on the swift and scenic course, which is a Boston qualifier. Learn more at https://www.philadelphiamarathon.com.
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
62°
Typical Low
46°
Chance of Rain
29%
Based on US Climate Normals data from Phila Franklin Inst, 4 mi from the venue.
Host City
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
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at All City 20 Miler (10 Miler too!), put it on the calendar, and turn “someday” into a start date.
87
Days to train
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From Endurance Grid
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
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Frequently Asked Questions (FAQs)
All City 20 Miler (10 Miler too!)
Oct 31, 2026