Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon logo
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Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon

Date
July 11–12, 2026
Location
Fairmount Park, Philadelphia, PA
Distance
SPRINT Triathlon · SPRINT Duathlon · SPRINT Aquabike & more
Register →

From the Organizer

The 9th Annual Stampone O’Brien Dilsheimer Holloway Law Women's Philadelphia Triathlon and Kid's Triathlon

The 9th Annual Stampone O’Brien Dilsheimer Holloway Law Women’s Philadelphia Triathlon is unmatched in energy, execution, and excitment. This POOL SWIM TRIATHLON was 2x named BEST RACE IN THE CITY by Be Well Philly! There is a distance for every woman to "tri." 

The Sprint: 300meter swim, 9 mile bike, 5k run
The Super Sprint: 50 meter swim, 4 mile bike, 2 mile run
The Duathlon: 1 mile run, 9 mile bike, 5k run
The Aquabike: 300 meter swim, 9 mile bike, DONE!

If any of this seems daunting we have RELAY options for you and your friends. Yes, you and your friends can choose which part of the race to do and you can ALL cross the finish line together!


More Need To Know's:

  • All swimming takes place in Historic Kelly Pool...NOT THE Schuylkill River
  • The bike portion takes place on picturesque Martin Luther King Dr alond the river and is CLOSED to vehicular traffic.
  • All running takes place around the Please Touch Museum and the Horticultural Center in West Fairmount Park
  • If you have ever thought of "tri-ing" a triathlon this is the most welcoming, friendly, and positive atmosphere in all of triathlon!

Registration Includes:

  • Custom Finisher Medal
  • Amazing Women's Specific Event Shirt
  • Real Timed Race Results
  • Live Athlete Tracking via the DelMo Elite Events App
  • Awesome Post Race Breakfast provided by Winnie's Manayunk


What can women expect from this event?

  • POOL SWIM!!!!!!
  • SAFETY IS OUR #1 PRIORITY
  • OUTSTANDING, POSITIVE ATHLETE EXPERIENCE
  • CRYSTAL CLEAR COMMUNICATION
  • ATTENTION TO ALL DETAILS
  • BIG, FANCY BLING!
  • GREAT SWAG AND MORE!

 

 

DO YOU HAVE CHILDREN AND WANT THEM TO TRI? CLICK HERE TO LEARN ABOUT THE KID'S PHILLY TRI TAKING PLACE ON SATURDAY, JULY 11, 2026 OF RACE WEEKEND!

 

 

Events

SPRINT TriathlonSun, Jul 12 · 7 AMRegister →
SPRINT DuathlonSun, Jul 12 · 7 AMRegister →
SPRINT AquabikeSun, Jul 12 · 7 AMRegister →
SPRINT Triathlon RelaySun, Jul 12 · 7 AMRegister →
SPRINT Duathlon RelaySun, Jul 12 · 7 AMRegister →
SPRINT Aquabike RelaySun, Jul 12 · 7 AMRegister →
SUPER SPRINT TriathlonSun, Jul 12 · 7 AMRegister →
Kids Philadelphia TriathlonSat, Jul 11 · 10 AMRegister →

Weather

Typical Conditions

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

90°

Typical Low

72°

Chance of Rain

32%

Based on US Climate Normals data from Phila Franklin Inst, 3 mi from the venue.

Sunrise 5:42 AMSunset 8:31 PMDaylight 14h 49m

Host City

About Philadelphia, PA

Population

1,582,432

as of 2023

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

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon, put it on the calendar, and turn “someday” into a start date.

33

Days to train

Race
Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon
Date
July 11–12, 2026
Register Today

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From Endurance Grid

About This Sport

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.

Three sports, one race — swim, bike, run in sequence, with transitions that are a discipline of their own.

Open water, open roads, and competition with yourself. Cross the finish line knowing what it took to get there.

Read the Guide

Triathlon

Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think.

Read the guide →

Frequently Asked Questions (FAQs)

What is the Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon?
Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon is a triathlon race held in Philadelphia, Pennsylvania on July 11, 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 triathlon races near you or explore our sports guides to learn what race day actually feels like.
When and where is the Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon?
Saturday, July 11, 2026 in Philadelphia, Pennsylvania at Fairmount Park, Philadelphia, PA. Check the event page for exact start times and wave schedules.
How do I register for the Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Stampone O'Brien Dilsheimer Holloway Women's Philadelphia Triathlon

Jul 11, 2026

Register →