Registration for the 2020 Under Armour B3 Distance Series presented by KELLY is now open.

Entry includes:

  • Guaranteed entry into each B3 race:

    • Under Armour Shamrock St. Patrick’s Day 5K

    • Under Armour Sole of the City 10K presented by KELLY

    • Under Armour Charles Street 12 presented by KELLY and 2-Person Relay presented by HEX

  • Individual Under Armour premiums for each race

  • Transportation for the Under Armour Charles Street 12 presented by KELLY

  • The 2020 B3 distance series premium, an Under Armour Storm Launch Jacket 2.0

  • A finisher medal from each of the three races, plus a one-of-a-kind B3 Distance series medal holder

Registration Fees:

  • $180 at the 2019 Charles Street 12 post race party (in-person only)

  • $200 until 11:59 PM on 10/31/19

  • $215 until 11:59 PM on 12/31/19

  • $230 until 11:59 PM on 2/29/20

  • $245 thereafter

Click here for a printable registration form.

Transfer and Deferral Policy

Each race in the Under Armour B3 Distance series presented by KELLY has specific transfer and deferral guidelines. Please review the "Race information" section located within each event for specific information.