Shirt and medal
TShirts
Shirt Styles & sizes are guaranteed when you register by July 11, 2027. From July 12 on, shirts will not be guaranteed. We will order unisex style shirts and they will be available on a first come-first serve basis.


Registration is open.
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Official race websiteAdd to calendar: Apple or Outlook · Google
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| International Triathlon | Olympic TriathlonOpen water swim | Aug 1, 20278:00 AM | $140$168 after Jul 30, 2027 | – |
| Three Person International Team (Relay) | Olympic TriathlonRelay or teamOpen water swim | Aug 1, 20278:00 AM | $245$294 after Jul 30, 2027 | – |
| Two Person International Team (Relay) | Olympic TriathlonRelay or teamOpen water swim | Aug 1, 20278:00 AM | $200$240 after Jul 30, 2027 | – |
| Sprint Triathlon | Sprint TriathlonOpen water swim | Aug 1, 20278:30 AM | $120$144 after Jul 30, 2027 | – |
| Three Person Sprint Team (Relay) | Sprint TriathlonRelay or teamOpen water swim | Aug 1, 20278:30 AM | $205$246 after Jul 30, 2027 | – |
| Two Person Sprint Team (Relay) | Sprint TriathlonRelay or teamOpen water swim | Aug 1, 20278:30 AM | $170$204 after Jul 30, 2027 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The Sprint Triathlon fee goes up to $144 on Jul 30, 2027.
Online registration closes Jul 31, 2027, unless the race fills first.
Sunrise on race morning is at about 5:41 AM, and the International Triathlon starts at 8:00 AM. The start sits about 320 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
1 Nash Mill Road, Greenfield, MA 01301
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
Around August 1 the day usually runs from 63°F at dawn to 82°F in the afternoon, with measurable rain on about 33% of days. Cold snaps dip to 55°F and hot years reach 90°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
What the organizers of 43rd Annual Greenfield Triathlon cover on their registration page, in brief.
Shirt and medal
Shirt Styles & sizes are guaranteed when you register by July 11, 2027. From July 12 on, shirts will not be guaranteed. We will order unisex style shirts and they will be available on a first come-first serve basis.
Organize this race? Add details or a correction
The Greenfield Triathlon is the longest running triathlon in New England!
Situated in the heart of Franklin County, the Greenfield Triathlon course meanders through the picturesque back roads of Greenfield, passes through the Historic Eunice Williams Covered Bridge, and features swimming in our very own Green River.
Offering both International and Sprint distances for individual athletes as well as two- and three-person teams, the Greenfield Triathlon is great for both beginners and seasoned triathletes. A triathlon training program is offered Sundays leading up to the event. In Greenfield, our motto is “To Finish Is To Win!”