Old Greenwich has never had a defining fall event. Summer has the beach, the Fourth of July, the crowded lot at Tod's Point on the first hot Saturday in June. Winter has the quiet loop road and the dog walkers. Fall has mostly been the season in between, the weeks when the pass rules are still in effect but the crowds have thinned out. That changes on September 27, when Greenwich Road Runners send a capped field down Shore Road and around Greenwich Point for the first half marathon the town has ever hosted.
What's worth understanding, before the date arrives, is not just that the race is happening. It's that this stretch of the calendar, roughly seven weeks from late September to mid-November, is the only time of year when the same 2.25-mile loop road at Greenwich Point operates under three completely different sets of rules. The race is the first of those three. Most residents only know the other two.
A First for a Town That Doesn't Get Many Firsts
The HSS Greenwich Half Marathon is organized by Greenwich Road Runners, the volunteer running club that already puts on the Jim Fixx 5K and a regular schedule of group runs. This is their first attempt at a half marathon distance, and Hospital for Special Surgery has signed on as title sponsor for what organizers hope becomes an annual fixture rather than a one-time event.
"Launching a brand-new race takes the support of partners who share our vision, and HSS has embraced that vision from the very beginning," Greenwich Road Runners director Christopher Dawson said of the partnership.
Proceeds are earmarked mainly for Kids in Crisis, the nonprofit that provides crisis intervention, emergency shelter and counseling for children and families, with additional support going to other local charities and the volunteer groups working race day. Registration runs through JB Sports at an $80 entry fee, and organizers expect the field to sell out given the limited participation cap.
The route itself is a certified, flat, two-loop course through Greenwich Point Park and the surrounding coastal streets of Old Greenwich. That's the part that touches daily life for anyone living near the park, whether or not they have any interest in running 13.1 miles on a Sunday morning.
What Actually Closes on September 27
Before Greenwich Road Runners could confirm the course, they had to go before the Board of Selectmen and request a temporary one-way restriction on seven streets: Shore Road, Sound Beach Avenue, Raymond Street, Park Avenue, Lockwood Avenue, Harding Street and Tomac Avenue. The selectmen took up the vote in late August, with the Greenwich Police Department and Parks and Recreation reviewing the plan alongside them.
Race morning runs on this schedule:
- 6:00 a.m. — packet pickup and registration at the park
- 7:00 a.m. — half marathon start
- 8:15 to 10:30 a.m. — post-race snacks and refreshments
- 9:45 a.m. — awards ceremony
There's a built-in courtesy for the neighborhood baked into the course rules themselves. Runners have a three-hour limit, which works out to a required pace of about 13 minutes 44 seconds per mile. As the race moves past that pace threshold in each section of the course, roads reopen to traffic and the water and aid stations along that stretch shut down. In practice, that means the affected streets don't stay closed for a fixed block of hours. They open in sequence as the back of the field clears each segment.
One detail that matters if your Sunday routine usually includes a dog: Greenwich Point Park requires no dogs during the event, because it falls within the park's in-season period when the summer beach rules are still active. If you're used to walking a dog along the loop road on a September weekend, plan around race morning specifically.
For anyone running, packet pickup happens two days ahead at Threads & Treads on East Putnam Avenue, Friday from noon to 5 p.m. and Saturday from 10 a.m. to 4 p.m.
The Three-Regime Stretch
Here's the part that doesn't get spelled out anywhere else. The same loop road that hosts the half marathon on September 27 is already governed by the standard park pass season, and within about seven weeks it shifts into an entirely different mode for the winter.
| Period | Who controls the loop road | Hours | What's required |
|---|---|---|---|
| September 27 (race day) | Greenwich Road Runners, with town police and Parks & Rec | Roads reopen in sequence starting around 7 a.m. as runners clear each segment | No entry restriction beyond normal park rules; no dogs allowed that morning |
| Now through October 31 | Standard Greenwich Point beach season | Park open 6 a.m. to sunset | Seasonal pass or single-entry ticket required for vehicle access between roughly 7 a.m. and 5 p.m. |
| Mid-November through mid-April | Safe Roads Sundays, sponsored by Friends of Greenwich Point | Sundays, 8 to 11 a.m. | No pass needed; loop road closed to non-essential vehicles so pedestrians, joggers and cyclists can use the full road |
Three different regimes, three different sets of people deciding who gets to use the same stretch of pavement, all within a season that most people think of as the quiet stretch between beach days and the holidays. The race is new. The pass season and Safe Roads Sundays aren't, but few residents track how tightly they now bracket each other. If Greenwich Road Runners get their wish and this becomes an annual event, that seven-week sequence becomes something worth marking on the calendar every fall, not just this one.
The Birds Were Never Consulted, and They Don't Care
None of this changes what's actually drawing people to the park in the first place. Greenwich Point is a designated Important Bird Area, and the Friends of Greenwich Point sponsor a First Sunday Bird Walk every month, meeting at the southern concession stand near the beach. Fall is one of the two migration windows the walks are built around, when songbirds, shorebirds, flycatchers and hawks pass through on their way south, ahead of the waterfowl that settle into the Sound for the winter.
The bird walks run on their own schedule regardless of what else is happening at the park that weekend, and the Friends of Greenwich Point note that participants can get complimentary admission for the walk during the months that otherwise require a beach pass, simply by letting the front gate staff know. It's a small logistical wrinkle worth knowing if you've been putting off a visit because you assumed you needed a pass for everything.
Marking the Calendar
For anyone trying to keep the sequence straight before it starts overlapping with actual weekend plans:
- Now through October 31 — standard beach pass season is still in effect, and this is the window the half marathon falls inside.
- September 25 and 26 — race packet pickup at Threads & Treads on East Putnam Avenue.
- September 27 — race morning, with the seven listed streets running one-way until each section clears.
- October 31 — the last day a seasonal pass or single-entry ticket is required for vehicle access to Greenwich Point.
- November 1 — free entry begins for the off-season, running through April 30.
- Mid-November — Safe Roads Sundays return, closing the main loop road to non-essential vehicles from 8 to 11 a.m. every Sunday through mid-April.
None of these dates are secret, but nobody had put them next to each other before. Taken together, they describe a fall that isn't a lull at all. It's a handoff, from beach season, to a brand-new race trying to become a tradition, to the quiet, car-free Sunday mornings that regulars already treasure. Whether you're circling the loop road for a run, a walk, or just heading to the beach on a Saturday afternoon, this is the year to know which set of rules is in charge on any given Sunday.
If you're new to Old Greenwich, or thinking ahead to a season when a home near the park might make sense for your family, Robin Bartholomew works this corridor closely enough to know when the loop road changes hands. Schedule a consultation to talk through what living near Greenwich Point actually looks like, month by month.
