March 15, 2026
Event Details
Celebrate St. Patrick’s Day with loved ones at the Guinness Celtic 5K on Sunday, March 15, 2026. This festive, fast 5K travels the route of the Worcester St. Patrick’s Day, which begins immediately following the race.
GUINNESS CELTIC 5K RACE INFO
Date: Sunday, March 15, 2026
Start time: 5K Run/Walk – 11:00 a.m.
Stat time: Kids Run – 10:30 a.m.
Location: Elm Park, 284 Highland St, Worcester, MA 01602. Note: The race start and finish are located on Park Avenue near the intersection of Park Avenue and Highland Street.
EVENTS
Kids Leprechaun Run
Approximately 1/4 mile for ages 12 and under.
Parents may run with their children.
The Kids Leprechaun Run will start at 10:30 a.m.
5K Run/Walk
3.1 Miles. As always, walkers are welcome.
Please Note: no pets allowed and strolled must start in the back for safety reasons.
The Guinness Celtic 5k will start at 11:00 a.m.
UPGRADE TO THE GREENDALE PHYSICAL THERAPY WORCESTER TRIPLE CROWN!
Looking for an extra challenge? Join us for the Greendale Physical Therapy Worcester Triple Crown, a 3-Race 5K series that celebrates some of the most fun holidays of the year, including the Worcester Jingle 5K on December 7, 2025, the Guinness Celtic 5K on March 15, 2026, and concluding with the Worcester Cinco (5)K on Sunday, May 3, 2026.
Participants in the full Triple Crown will score a commemorative pint glass at EACH of the three races, as well as a Finisher’s Medal at the finish line of the Worcester Cinco K.
To register for the Greendale Physical Therapy Worcester Triple Crown, simply select the 3-Race bundle on any of the race registration sites!
REGISTRATION ADD ONS AVAILABLE
Participants can choose to add a Finisher’s Medal and/or the Celtic 5K beanie hat when registering. See below for previews of both!
Course Description
This fast, flat out-and-back course travels the route of the Worcester St. Patrick’s Day Parade, which begins immediately after the race! Runners flood the streets of Downtown Worcester – see below for the epic view of the turnaround point.
Registration Info
5K Run/Walk
$33 to 12/31/2025
$35 1/1/2025 to 1/31/2026
$37 2/1/2025 to 3/14/2026
$45 Walk Up Registration on race day.
*Online registration closes at 7pm on 3/14/2026
Kids Leprechaun Run
$17 to 12/31/25
$18 1/1/2025 – 1/31/2026
$19 2/1/2025 – 3/15/2026
$20 Race Weekend Walk Up Registration
T-Shirts are not guaranteed for walk up registrations.
Sorry, no refunds. No pets allowed. Service animals are permitted. Strollers must start in the back for safety reasons.
PACKET PICKUP
Pre-Race Packet at Sneakerama – 12 Lake Ave, Worcester, MA
Friday, March 13, Noon to 5:00 p.m.
Saturday, March 14, 10:00 a.m. to 5:00 p.m.
Race Day Packet Pickup
Sunday, March 15, 2026
Park Ave at Elm Park
Worcester, MA
9:00am – 11am
AWARDS
Individual Awards
Top 3 overall
Winners (Under 19)
Winners (age 20-29)
Winners (age 30-39)
Winners (age 40-49)
Winners (age 50-59)
Winners (age 60-69)
Winners (age 70+)
Individual awards are scored on gun time.
Team Award
Prize will be awarded to the top overall team.
Top 3 score based on chip time.
No limit on Team size.
Online entry for Teams only.
Walk up registrations will be accepted on Friday and Saturday.
Please Note: Race t-shirts are not guaranteed for walk up registrations.
T-Shirt and Medal Info
RACE T-SHRTS
All participants who pre-register will receive a t-shirt.
Please Note: Race t-shirts are not guaranteed for walk up registrations.
Kids sizes: Youth size and Unisex Adult Sizing: Small – XXL
ADD ON: CELTIC 5K BEANIE HAT
The Celtic 5K Beanie is available as an add-on during registration.
ADD ON: FINISHER’S MEDAL
Participants may choose to add on a Finisher’s Medal – simply select the “5K WITH MEDAL” option during registration to secure your medal, which can be picked up after the race at the finish line.
Charity
Worcester St Patrick’s Parade.
Post Race Party
The Parade’s Guinness Beer Garden located at the finish line of the race and the parade.
Please remember to bring your ID.