Pi Day River Rotation

Have your pi and eat it too!

March 14, 2026 8:30 AM 16.24 Miler, 1/2 Marathon, Pi Miler Cutoff: Event end time 1:00 PM. Half marathoners must leave the aid station to begin their final loop by 11:45 AM.

About the Race

Celebrate your love of pi... and pie! Take on the Pi Miler (3.14 miles) or the River Rotation Half Marathon on the fun, fast, and flowy Lawrence River Trails. The 16.24 mile Pi Slam combines the Pi Miler and River Rotation Half Marathon. After the race, enjoy some pie at the finish line with your finisher's fork!

Location & Course

8th and Oak, Lawrence KS

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Awards

Some races give you hardware. Pi Day gives you flatware! Enjoy your post-race pie with your finisher's fork. Awards will be given for 1st, 2nd, and 3rd place in each gender overall for the Pi Miler and River Rotation Half Marathon races. Pi Slam finisher will receive a special swag item. Pi Slam runners are eligible for place awards in the Pi Miler and Half Marathon. Awards will be presented at the finish line.

Race Director

Registration Details

Registration closes: Tue, Mar 10 @ 11:59PM CT.

Packet Pickup

Packet Pickup will be held at Fleet Feet Lawrence, 839 Massachusetts St, on Friday, March 13 from 12:00 PM to 6:45 PM. Out of town runners may pick up their packets on race day beginning at 6:00 AM. Additional Pi Day and/or Trail Hawks merch will be available for purchase at packet pickup and on race day as inventory allows.

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