Fall and Summer Seasons Now Open


Welcome to One Sports Nation Colorado, now powered by Gridiron Football. Whether youโ€™re joining us for a safe and fun Flag Football experience, playing with your team in a Competitive 7-on-7 game or putting in the work in a fast-paced Flex Football game, we guarantee a great game day experience for all!

Find Your Local League

Don’t miss the action! One Sports Nation is proud to partner with Gridiron Football to provide a growing program for youth flag football in Colorado. For our Colorado ballers, we have flag football leagues throughout the state so you never miss any action! The perfect location is available for all players with more locations on the way. See you on the gridiron!


Follow the Action

Follow @gridironfb on Facebook

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4 days ago
Gridiron Football

Bringing back Touchdown Tuesday because Fall Football is finally here!! ๐Ÿคฉ ๐Ÿˆ ... See MoreSee Less

Comment on Facebook

Gettin it ! Let’s Gooooo!

Follow @playgridironfb on Instagram

Setting only the important reminders โฐ๐Ÿ˜Ž ...

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Today and always, we remember โค๏ธ๐Ÿ‡บ๐Ÿ‡ธ ...

28 1

Football friends are the best friends!!๐Ÿ˜๐Ÿˆ ...

39 3

Whoโ€™s tired of trying to beat the Summer heat & is ready for Fall & Football!?

We definitely are!๐Ÿ™‹โ€โ™‚๏ธ๐Ÿˆ๐Ÿ™‹โ€โ™€๏ธ

๐Ÿ“ธ: @blaizmedia

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About Our Team


Gridiron Football is creating the largest youth football league in the world. Created and staffed by former NFL players and coached by some of the best coaches in the country, we are elevating the game for both parents and players.

As a Gridiron Football League, One Sports Nation is part of a national community of football fans who value the best gameday experience.

About Our Team

Flag Football

With structured rules, great officiating, and advanced team-rostering, Flag Football offers a safe, fair and fun experience for boys and girls to play football at every age and skill level.
For players 4 to 17 years old.

Flex Football

Designed by NFL players to replicate the NFL practice regimen, Flex Football is the most complete, non-tackle option available.
For players 4 to 17 years old.

Become a Coach

Are you ready to get your team out on the Gridiron this season? Our Youth Football leagues are built on great volunteer coaches. Gridiron Football provides you with great tools, training, and resources to ensure your success.

Team Sign Up

As a Coach or Team Parent, you can register a team and email a link of your program of choice to your playerโ€™s parents. Sign up as a coach to register your team and start your season.

Thank You League Partners


Our Gameday Promise


The Gridiron Gameday Promise is a commitment to parents, players and coaches that we will create a safe and fun experience for everyone. We take this commitment to heart everyday. From our officials on the field to our dedicated gameday staff and operations team โ€” this effort is what makes Gridiron Football the leading youth non-contact football league in the country.

The Gridiron Gameday Promise is that you can rely on us to provide a consistently exceptional experienceโ€“ no matter what game style you play or where you play it.

flag football sign up

Don't Miss a Play