HalfRuns
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Williams Route 66 Marathon Weekend

USATF Certified

Sunday, November 22, 2026

Tulsa, Oklahoma

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USATFCourse

Course Information

USATF Certified Course

OK24026MU · Expires 2034

Certified Course Name

Guthrie Green Half Marathon #7 (Route 66)

Net Drop

+0.09

m/km

Separation

7.1%

start to finish

This course is relatively flat with minimal net elevation change.

View USATF Course Map (PDF)

Race Details

Race Day

Sunday, November 22, 2026

Course

Loop

Also Offers

26.2M

Registration

Register online

Race Website

Official race information

Historical Weather

☀

Avg High

58°F

☽

Avg Low

41°F

☂

Precip

0.15 in

🍃

Wind

11.7 mph

70% humidity·Based on 5-year historical data

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