Sumner Ninja LLC

Sumner Ninja LLC We are Seattle's #1 gym for Ninja Warrior and Spartan Racing training. Call us and schedule your firs

08/12/2026

We are currently closed due to no power at the gym. We apologize for the inconvenience, it seems to be an outage around the area. If we get power back, we will post that we are back.

Summer is here!! Register for our summer camp before it’s too late. We will be doing ninja training, obstacle courses an...
06/19/2026

Summer is here!! Register for our summer camp before it’s too late. We will be doing ninja training, obstacle courses and more for a fun-tastic summer!

Help send our team kids to worlds!! If you’re in the area stop by for some goodies to help support get our team kids to ...
05/31/2026

Help send our team kids to worlds!! If you’re in the area stop by for some goodies to help support get our team kids to worlds. Cookies, muffins, rice crispy treats, sweetbreads, and SNOW CONES

201 Clay St NW Auburn WA 98001

Had a great weekend at .form Everyone qualified for UNAA Worlds
04/30/2026

Had a great weekend at .form Everyone qualified for UNAA Worlds

Regionals is coming up fast. Sign up today
04/23/2026

Regionals is coming up fast. Sign up today

We are starting our World Cup random draw. Each egg has a country inside. Pick an egg, represent a country, see if you w...
04/20/2026

We are starting our World Cup random draw. Each egg has a country inside. Pick an egg, represent a country, see if you win the Cup. We are selling eggs to help fund a few new obstacles from . Any donation will be greatly appreciated. If you are not from Washington and want to play or just donate. Please DM. Good luck to everyone who plays.

Due to a comp. We will not have open gym this week. Will return next week
04/11/2026

Due to a comp. We will not have open gym this week. Will return next week

We will do a walk through for all ages at once. Course will get harder as ages go up. We will run youngest to oldest in ...
04/10/2026

We will do a walk through for all ages at once. Course will get harder as ages go up. We will run youngest to oldest in speed x2 then a quick reset and awards then endurance and a second walk through

Will resume next week
04/08/2026

Will resume next week

Last weekend to sign up. Last qualifier for FINA in the PNW. Sign up now
04/04/2026

Last weekend to sign up. Last qualifier for FINA in the PNW. Sign up now

Address

201 Clay Street NW Suite A-5
Auburn, WA
98001

Opening Hours

Monday 4pm - 9pm
Tuesday 4pm - 9pm
Wednesday 4pm - 9pm
Thursday 4pm - 9pm
Friday 4pm - 9pm
Saturday 9am - 1pm

Telephone

+12539298375

Website

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