Logo for Backyard Ultra at Lake Rebecca featuring a muscular man with long flowing hair and a beard running barefoot, with the words "SISU" in large blue letters and the event name in black text underneath.
Sign with the text 'Presented by' at the top and a black rectangular box with the word 'FEE' displayed, with the letter 'E' in green.

Why the SISU Backyard Ultra?

When you’re heading out for another loop, the little things matter. A hot meal. A familiar face cheering you on. A place where your crew feels just as welcome as you do. We put care into those details because they shape your entire race experience.

Our aid station serves more than snacks. Pancakes for breakfast, quesadillas for lunch, and grilled cheese for supper give you something to look forward to between yards. Every runner gets a premium event shirt, and our livestream and online tracking let friends and family follow your progress from wherever they are. When your race is done, settle into the sauna, swap stories, and stick around to cheer for the runners still going.

Then there’s Lake Rebecca. Our scenic 4.167-mile loop combines trail, gravel, and pavement, with enough variety to keep things interesting as the hours add up. Each lap brings you back to the same gathering place, where strangers become familiar faces and everyone’s next loop is worth celebrating.

The feedback from our runners has meant a lot to us, and it keeps us looking for ways to make SISU even better. With a growing field, expanded live coverage, and plenty of good food, there’s a lot to look forward to.

Whether your goal is one loop, a new personal best, or being the last one standing, we’d love to have you there.

Bring your crew. Bring your appetite. Bring your sisu.

A big thanks to our partners!

Black and white logo featuring a cartoon llama with a confident expression inside a triangular outline. Below the llama, the text reads 'Storm Front Leather'.