2018 Under Armour B3 Distance Series presented by KELLY

Sun March 11 - Sat September 1, 2018 Baltimore, MD US 21201 Directions
Register before the price increases on February 6th!
Baltimore Inner Harbor
Baltimore, MD US 21201

The 2018 Under Armour B3 Distance Series presented by KELLY is now SOLD OUT! Good luck runners!

Welcome to Baltimore's first ever event distance challenge, sponsored by Under Armour. Join us by sharing in three of Baltimore’s premier events increasing the distance with each event. The Under Armour KELLY St. Patrick's Day Shamrock 5K, the Under Armour Sole of the City 10K presented by KELLY, and the Under Armour Charles Street 12 presented by KELLY will make up the series. Why not set yourself or a loved one up in 2018 to go the distance and participate in all three of these exceptionally fun running events?

We kick things off in March with the fastest and most festive 5K in town: the Under Armour Kelly St. Patrick's Day Shamrock 5K. Shortly after that we welcome spring and cover a little more ground with the super fun and scenic Under Armour Sole of the City 10K presented by KELLY. The final leg of the B3 is the Under Armour Charles Street 12 presented by KELLY, a journey down one of Maryland's most prominent scenic byways.


Early B3 Premium Pick-up

Runners, we have GREAT news! Our Under Armour B3 Distance Series presented by KELLY premiums are ready EARLY and we can't wait for you to get your hands on them. So, we're hosting a B3 premium pick-up event Saturday, February 3rd in Timonium and Sunday, February 4th in Locust Point from 9am - noon. Come get your premium AND shop all full-priced Under Armour gear at 25% off.

B3 Race Series Medal

Super exciting news! B3 medal has been announced!!! You will receive this back plate medal so you can attach your other 3 medals from the Shamrock 5K, Sole of the City 10K and Charles Street 12.

Race Contact Info

If you have any questions about this race, click the button below.

Race Information

Registration Fees:

$175 through 9/6/16 (Early Registration Special)

$190 through 11/30/16

$205 through 2/5/17

$220 thereafter

There are no refunds of entry given permitted for this event.

Entry into the B3 includes:

Guaranteed entry into all 3 races:
Under Armour KELLY St. Patrick's Day Shamrock 5K
Under Armour Sole of the City 10K presented by KELLY
Under Armour Charles St 12 presented by KELLY

Premium gifts with all three races
Transportation for the Under Armour Charles Street 12 presented by KELLY
A Unique B3 Premium - This year's premiums are two great pieces from Under Armour!
A one-of-a-kind B3- FINISHERS' medal upon completion of all three events

Terms and Conditions:

There will be no refunds of entry granted.

Medals will be issued to participants who finish all three events only and distributed after the Charles Street 12.

Each B3 entry is good for one participant only.

Registration for the Under Armour B3 - Baltimore presented by KELLY will close upon a sell out of any one of the three included events.


We allow transfers and deferral's up to one month prior to race day. There is a $30 processing fee for both transfers and deferrals for the B3 Series. The transfer processing fee is paid by the "new registrant" and the deferral fee is paid for by the "deferring registrant". If you choose to defer your registration until next year, we will send you a registration code post race that can be used to register for next year race. You may do both by going into your profile on runsignup.com and choosing manage registration. 


The three events that make up the Under Armour B3 Distance Series are rain or shine events, and the races will go on as planned unless thunder and/or lightning is detected at race time, or other extreme weather is present. Standard practice is to wait 30 minutes after lightning or thunder is detected to begin the race. If after waiting 1 hour we still have lightning and/or thunder in the area will will be forced to cancel the race. Unfortunately, race registration fees cannot be refunded. 

Training Groups:

Not sure if you are up to the challenge? Training groups will be forming all over Baltimore for each of these events if you're looking for the best coaches and support network in town, please use the below link,


B3 Premiums