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Relentless Against Blood Cancers 5k/10k

When: June 12, 2021
Where: Bismarck, ND
Race type(s): 10K,5K

JOIN US FOR THE 7th ANNUAL RELENTLESS AGAINST BLOOD CANCER (BISMARCK) 5K/10K RUN/WALK.100% of proceeds will go to benefit the Leukemia & Lymphoma Society via Team in Training.  Kids 10 and under are free but must still register.  Early Packet Pick-up will take place on June 11th from 4:30-6:00pm at Proximal 50 Life Center on Divide Ave, Bismarck.  Late on-site registration will begin at 7:00am at Shelter #10 with the 10K run/walk starting at 8:30 am, 5k timed run/walk starting at 8:35am and the 5k fun “un-timed” run/walk starting at 8:40am.  The 10k route will include the Memorial Bridge.

**VIRTUAL REGISTRATION ARE FOR THOSE UNABLE TO ATTEND THE EVENT BUT WOULD STILL LIKE TO PARTICIPATE.  Register using the virtual registration lines and we will mail you a t-shirt out!  We would also love to see pictures of you wherever you are posted to our facebook page as you complete the 5k or 10k that day!**

Please note that online registration will end on June 10th, early packet pick up and on-site registration will be $30 for 5k and $35 for 10k.  In order to guarantee T-shirt size, please register no later than May 9th.  The Virtual Any-k is $30 which includes event tshirt and shipping.


NO REFUNDS….  but if you find yourself registered and unable to make the event in Bismarck, we can transfer you to be a virtual participant and you can complete the event where you are or we can transfer your bib to someone else if you would like.


A little about The Leukemia & Lymphoma Society, Team in Training and the hosts of the event:

LLS uses at least 74% of all money raised, for cancer research and patient care.  TNT is the world’s largest endurance sports training program.  Since being founded in 1988, TNT has helped over 600,000 people cross the finish line of marathons, half marathons, triathlons, and 100 mile bike races.  All of those people have raised over $1.4 billion to support blood cancer research.  TNT members are asked to raise funds to help support LLS; in exchange, the members receive personalized trianing programs, fundraising mentors, support from teammates, event fees paid, and lodging for some events.

Theresa Addison started raising funds for LLS, through TNT, in 2011 after losing her uncle in 2010 to Non-Hodgkins Lymphoma Mantle Cell. During his short aggressive battle, LLS provided him with patient aid and support, so raising money for LLS was Theresa’s way of giving back on her uncle’s behalf. 

Theresa introduced Kendra Miller to TNT in 2013. Kendra had an aunt that passed away from Acute Myeloid Leukemia (AML) a few years prior and thought raising money for LLS would be a great way to honor her. Just a quick year later in June of 2014, Kendra’s mom was diagnosed with AML. It was devastating as her mom was already a 2x breast cancer survivor. Kendra’s mom is now an AML survivor, because of the advancements of treatment from LLS research.

Up until this point, we only encouraged each other on our own fundraising for LLS. We started talking about making a bigger difference. We then decided to team up and not only raise more funds for LLS, but also raise community awareness for LLS and family fitness! That is how Relentless 5k/10k started!

Relentless 5k/10k has raised over $31,000 in 4 short years for LLS to stay in our local chapter!!

There are thousands of participants in TNT events each year with similar stories of friends and family members affected with blood cancer. 

For more information about the Leukemia & Lymphoma Society please visit:

For more information about Team in Training please visit:

For the Facebook page please visit:

Event details and schedule

Early Packet Pick-up and Registration: Proximal 50 Life Center (Divide Ave) 6/10 from 4:30pm-6:00pm

6/12/2021 – Shelter #10 @ Sertoma Park:

Late On-Site Registration and Packet Pick-up: 7am closing at 8:10am

Opening Ceremony: 8:20am

10k Start: 8:30am

Timed 5k Start: 8:35am

Untimed “Fun” Run: 8:40am