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The Ultimate Diesel Showdown Returns: UCC 2026!
June 5 – 7, 2026 | Lucas Oil Raceway | Indianapolis, IN
🔥 A Decade of Diesel Dominance. A Legacy That Keeps Growing. 🔥
Since 2016, the Ultimate Callout Challenge has been the proving ground for diesel performance excellence. From Lavon Miller’s three-peat dynasty and Derek Rose’s long-awaited championship, to the rise of Justin Zeigler, Tony Burkhard, and Kenny Bruner, UCC has become the ultimate showcase of innovation, grit, and horsepower. Each year, new records are set, new heroes rise, and the diesel world witnesses the relentless evolution of power at its absolute finest.
🔥 The Pinnacle of Diesel Competition. The Best of the Best. 🔥
The 2026 Ultimate Callout Challenge (UCC) isn’t just another event — it’s the crown jewel of diesel performance, a battlefield where only the elite compete.
At the heart of UCC is something truly unique:
➡️ An Invitation-Only Competition, where the top competitors from across North America are handpicked to face off in an extreme three-day test of power, endurance, and engineering mastery.
These aren’t just racers — they’re builders, innovators, and champions — and they’re bringing the absolute best that diesel technology has to offer.
The UCC Challenge:
- 🏁 Friday: Drag Racing — Diesel monsters tearing down the quarter-mile, where precision tuning meets raw, ground-pounding horsepower.
- 💪 Saturday: Dyno Competition — Trucks strapped to the dyno to unleash jaw-dropping torque and horsepower numbers. A battle of strength, strategy, and nerves.
- 🚜 Sunday: Sled Pulls — Old-school grit meets cutting-edge engineering as these trucks hook to the sled and fight for every inch.
Only the strongest survive. Only the most complete team claims the crown.
The excitement builds as we begin announcing the 2026 Competitor Lineup!
Expect legends returning to defend their turf, rising stars hungry to make their mark, and brand-new teams determined to shake up the diesel world.
Get ready — these are the biggest names, the wildest builds, and the most electrifying battles the diesel industry has ever seen.
But UCC is more than just competition — it’s a full-throttle festival:
- ⚡ Vendor Alley with the biggest brands in diesel, off-road, and motorsports.
- 🍔 Food trucks, live demos, and giveaways happening all weekend.
- 🤝 Meet & greet sessions with your favorite teams and builders.
- 🎯 Special activities, fan competitions, and insider access you won’t find anywhere else.
Fans — It’s Your Turn to Shine!
UCC 2026 isn’t just for spectators — it’s your chance to step into the spotlight and show the world what you’ve built.
Want to be noticed? Ready to prove your build? Maybe even earn a future UCC invitation? It all starts here!
Fan-driven competitions include:
- ✨ Show-N-Shine — Put your build on display alongside the industry’s best.
- 💥 Dyno Competition — Strap down and lay down the numbers to get the crowd talking.
- 🔥 Burnout Pit — Bring the smoke and thunder — fan-favorite chaos at its finest.
- 🚜 Sled Pull — Test your machine’s raw pulling power, just like the pros.
- 🏁 ODSS Drag Racing — Run with the Outlaw Diesel Super Series and prove your speed.
No matter what you drive, there’s a place for you to compete, celebrate, and maybe even begin your journey to the UCC main stage.
Whether you’re a hardcore diesel enthusiast, a racer, a mechanic, or just someone who loves hearing a turbo scream, UCC 2026 is where you belong.
This is diesel at its absolute limit. This is the Ultimate Callout Challenge.
Will you be there to witness history — or make it?
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2026 UCC
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2021 UCC DYNO RESULTS
| POS | COMPETITOR | RESULTS |
|---|---|---|
| 1 | 2443.6 HP | |
| 2 | 2220.6 HP | |
| 3 | 2264 HP | |
| 4 | 2463.7 HP | |
| 5 | 2369.2 HP | |
| 6 | 2202.9 HP | |
| 7 | 2090.7 HP | |
| 8 | 2065.9 HP | |
| 9 | 1909.8 HP | |
| 10 | 1753.3 HP |
