Since 1993 — Corvallis, Oregon
Graand Kinetic Challenge
For the fun of it!
This year’s theme: Kaleidoscope Colors
July 18-19, 2026
What is this beautiful wackiness?
The da Vinci Days’ Graand Kinetic Challenge (GKC) is a celebration of educational, artistic, scientific, and technological triumphs. This “you must see it to believe it” two-day spectacle showcases the sport of kinetic sculpture racing and sees teams take over 16 miles of Corvallis streets, bike paths, parks, and waterways, inviting spectators of all ages to cheer them on along the racecourse.
Held every third weekend in July, join us for the 33rd annual event on the 18th & 19th, 2026.
Pure joy on wheels!
THE COURSE
15 miles. 4 terrains. Infinite possibilities for chaos.
Over Land
Start strong on smooth terrain. Build speed while you can – you’ll need the momentum!
The Sand Dune
Corvallis doesn’t have a beach – so we made our own!
Deep sand tests your engineering and your patience.
The Mud Pit
Legendary. Infamous. Unavoidable.
Willamette Float
Who will make the biggest splash? Who can float from entry to exit?
Race Weekend 2026
Saturday, July 18
- 8:00 AM Tech Check & Art Judging
- 10:00 AM Pageantry Performances
- 12:15 PM RACE START!
- 12:30 PM Sand Dune Challenge
- 4:00 PM – End of Race Day 1
Sunday, July 19
- 8:00 AM Mud Bog Challenge
- 12:30 PM Water Entry
- 2:00 PM Finish Line Meet and Greet
- 3:30 PM End of Race
Ready to race?
Join in the Fun
Register your team for the 2026 race. Build something amazing, ridiculous, or amazingly ridiculous!
Help make it happen
Volunteer
Be part of the magic! Let us know how you’d like to help – we can always use more hands
Support the fun
Sponsor Us
Help keep this tradition alive! Your support makes the impossible possible.
Our Amazing Sponsors
Making the impossible possible since 1993
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Graand Benefactors
Our top-tier champions of STEAM, silliness, and sculpture! Fueling human-powered innovation and community joy.
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Allen Brown S.T.E.A.M. Inspiration Fund
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Benton Community Foundation
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Corvallis Tourism Board
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Dorothy F. & Walter S. Hopkins, Jr. Fund
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Edward C. Allworth Memorial Fund
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Oregon Community Foundation
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Stephenson Family General Fund
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Tom & Donna Allen Family Fund
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Pedal Power Partners
These sponsors help us keep the chaos rolling – across city streets, dunes, through mud, over the river, and into the hearts of thousands
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City of Corvallis
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First Alternative Co-op
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FLT
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Patton Sewer and Excavation
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For the Glory
Thank you to the generous sponsors who fund our one-of-a-kind awards – celebrating creativity, engineering, artistry, and pure kinetic spirit across the race!
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Anthony Odenthal
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BCARES
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CamLink
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FLT
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John Seachrest
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Mark Schurman
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Patricia Valian Reser Center for the Creative Arts
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Paul Vibrans
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Raan Young
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Squirrel’s Tavern
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The Arts Center
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The Thyme Garden
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The Toy Factory
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Troubadour Music Center
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Champions of the Challenge
A heartfelt thanks to all who donated supplies, services, or financial support – your contributions keep the wheels turning and the joy rolling!
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2 Towns Ciderhouse
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4 Spirits Distillery
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Abundant Solar
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Corvallis Fall Festival
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Corvallis Knights
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Element Graphics
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Goddess JenO
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High Quality
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Kinetic Bagel Institute
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Peak Bike & Outdoor
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Ram-Z Fab
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Republic Services
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Riverside Window & Door
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The Book Bin
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W.L. Construction Inc.