Add Teammates without Emails!


We found a great new way to help Captain’s invite players without the hassle of email addresses!

The Invite Link, located on your ‘Manage Team’ page, allows each Captain to share an opt-in link (and even assign TeamPayer dues with it!). Post it in your Company's messaging or email group, or send it to your friends on Social Media!

Halloween Bash 2016

Calling all goblins, ghouls, and ghosts...Halloween is so close it's scary!


Underdog's Halloween Bash will be Friday October 28th, at The Crocodile from 8pm to the Witching Hour (about 2 am). Win amazing prizes in the Costume Contest, sip on deals from Rainier and Tito's Vodka, and dance the night away to DJ Sharadawn and Special Guest Purple Mayne! 


This events sells out quickly...Tickets are available now!


Needlebowl 2016

Underdog's Annual Co-ed Flag Football tournament is TWO days of games under the Space Needle on December 10th & 11th! 


We have two divisions - Underdog (recreational) & Statdog (competitive). Join in on the 8v8 fun with a sponsor bar, 40+ teams, and the opportunity for gridiron glory.


Here's the tournament break down: 3 guaranteed games on Saturday, with playoffs on Sunday for qualifying teams. 


Sign up now! 


Underdog Gets Social! Include #UnderdogSeattle in your public Instagram and Twitter posts to be featured on our website!

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!