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Running

Greenwich Half Marathon

Date
September 27, 2026
Distance
Half Marathon
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From the Organizer

Greenwich Half Marathon
Sunday, September 27, 2026 | Greenwich Point Park | Old Greenwich, Connecticut

The Greenwich Half Marathon at Greenwich Point offers a scenic, fast course along the waterfront with stunning views of Long Island Sound. Whether you're aiming for a personal best or just a fun challenge, this race is the perfect blend of beauty and community spirit. Join us for an unforgettable experience!

Schedule
6:00am: Packet Pick-Up & Registration!
7:00am: Half Marathon Start
8:15-10:30am: Post-Race Snacks & Refreshments
9:45am: Awards Ceremony

Course Limits
As a courtesy to the communities impacted by the races and the volunteers who serve, there is a 3 hour limit for the Half Marathon. To finish within this time limit, runners must maintain a pace of approximately 13:44 minutes per mile. 
Along the Half Marathon race course, roads will reopen to traffic and water/aid stations will close down as the race moves beyond a 13:44 minute per mile pace. Runners running beyond Course Time Limits are doing so at their own risk. Please be prepared and carry fluids and energy gel throughout the race if pace will be slower than 13:44 minute mile. 
Race staff will begin breaking down the finish line after course limits. Runners who finish after limits and are not able to collect a finisher medal on site may contact the race office within 48 hours of the event.

Pet Policy
Dogs are not allowed at Greenwich Point Park during this event, as it takes place during the park’s in-season period.

Shirts
Sign up now and get your hands on a custom tech shirt!

Post-Race Snacks
Recharge after your run with a tasty post-race snack! Our grab-and-go style makes it easy to refuel.

Parking
There is parking on site, although carpooling is encouraged!

Awards
Top 3 men & women finishers in each of the following divisions:
19 and under, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80+
Top 3 non-binary finishers.

Results
2026

Follow us!
Greenwich Road Runners on Instagram

Sponsorship Opportunities
Interested in becoming a sponsor? Contact John Bysiewicz at (203) 481-5933 or john@jbsports.com

Events

Half Marathon7 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

72°

Typical Low

52°

Chance of Rain

33%

Based on US Climate Normals data from Stamford 5 N, 6 mi from the venue.

Sunrise 6:47 AMSunset 6:45 PMDaylight 11h 57m

Host City

About Old Greenwich, CT

Nearest Airport

LGA

LaGuardia Airport · 24 mi

Time Zone

Eastern Time

From Endurance Grid

Line up lodging and travel early to lock in your race weekend.

Race Location

Your Next Start Line

What Are You
Waiting For?

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

111

Days to train

Race
Greenwich Half Marathon
Date
September 27, 2026

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.

The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.

Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.

The half marathon rewards people who show up for the boring training miles.

How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.

Read the Guide

Running

From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.

Frequently Asked Questions (FAQs)

What is the Greenwich Half Marathon?
Greenwich Half Marathon is a running race held in Old Greenwich, Connecticut on September 27, 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 Greenwich Half Marathon?
Sunday, September 27, 2026 in Old Greenwich, Connecticut at 11 Tods Driftway, Old Greenwich, CT. Check the event page for exact start times and wave schedules.
How do I register for the Greenwich Half Marathon?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Greenwich Half Marathon

Sep 27, 2026

Register →