Old Colony Marathon

USATF Certified

Friday, May 29, 2026

Westfield, Massachusetts

USATFCourse

Course Information

USATF Certified Course

MA17037JK · Expires 2027

Certified Course Name

Colonial Road Runners Forsty Half-Marathon

Net Drop

+0.07

m/km

Separation

0.3%

start to finish

This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.

View USATF Course Map (PDF)

Race Details

Race Day

Friday, May 29, 2026

Course

Loop

Also Offers

26.2M

Registration

Race Website

Official race information

Historical Weather

☀

Avg High

75°F

☽

Avg Low

54°F

☂

Precip

0.23 in

🍃

Wind

10.2 mph

67% humidity·Based on 5-year historical data

More races in Massachusetts

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Course Information

USATF Certified Course

MA17037JK · Expires 2027

Certified Course Name

Colonial Road Runners Forsty Half-Marathon

Net Drop

+0.07

m/km

Separation

0.3%

start to finish

This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.

View USATF Course Map (PDF)

Race Details

Race Day

Friday, May 29, 2026

Course

Loop

Also Offers

26.2M

Registration

Race Website

Official race information