Seattle Center Flag Football!

Play Flag Football under the Space Needle at Memorial Stadium! 


Choose from 4 different days at this location...Monday, Tuesday, Saturday, and Sunday. Get out on the Gridiron at one of our most popular locations! Pick your league and sign up NOW to reserve your spot!


Did you know that many Seattle companies will fully or partially sponsor your participation with Underdog Sports Leagues? Gather your co-workers and start a Company Team with Underdog.  


Halloween is Creeping Up!

Whether you're dressed as Wonder Woman, a Clown, or Jon Snow we want to see you at Underdog's Annual Halloween Bash! 

Underdog's Halloween Bash is Friday October 27th at The Crocodile from 8pm to the Witching Hour (about 2 am). Win amazing prizes in the Costume Contest, sip on drink deals from Rainier, and dance the night away!

Needlebowl 2017

The Needlebowl is back!
Underdog's Annual Flag Football Tournament under the Space Needle will be December 16-17. Each team is guaranteed 3 games plus play-offs for those that qualify. There will be 2 divisions: Statdog for the more competitive, and Underdog for those of you just out for a good time.
Gather your friends, choose your division, and sign up for a weekend of FUN!

Underdog Corporate Events

Underdog Corporate Events

As the largest provider of adult recreational sports leagues in the Pacific Northwest, Underdog's FunCorp Division is Seattle's best source to make your next corporate event or holiday party one to remember! Throw an amazing customer appreciation party, reward your employees for completing a big project, or instigate a corporate challenge with your industry rivals.  No matter the reason, our team of Fun Ambassadors will bring the FUN for your company!


Let's start planning today!



Signing Up As An Individual?

Signing Up As An Individual?

Here's what you need to know!

Underdog is a great way to meet new people if you've just moved to town or are looking for something new to do. When you register as an Indivdual or "Indy" your name is put on a list and when enough people register we make an "Individual Team" and introduce you to a whole group of new people.


Have another friend or two who want to play with you as well?  No problem.  In your signup there will be a spot to enter their name(s) so that we can place you all on the same Individual Team. Also, be on the lookout for our Indy Parties - another great way to meet and socialize with people!


Check out our Indy Rundown Page for more info and upcoming leagues!


Why and How to Get Started with Underdog!