DEFERRALS – Expiration extended!

The deadline to apply all unused 2020 deferral credits has been extended until December 31, 2021.

To check your deferral credits/codes:

  1. Deferment codes with credit value for each event are emailed from Please search the email account used for registration for the unique deferral code provided.
  2. If unable to locate, contact and provide the following:
    1. Name of registrant
    2. Email account used for registration
    3. Registrant date of birth
    4. Name of event with distance
  3. Please allow up to one week for responses and be sure to save the email response as confirmation

To register for a new event with a deferral code:

  • Access the deferral confirmation email sent from to get the unique deferral code provided
  • Input and apply the credit through the “PROMO CODE” payment option within the registration system
  • Note: Deferral credit amounts can only be used toward race entry fee. Participants are responsible to pay for add-ins including Mail My Packet, merchandise purchases, etc.
  • Deferral credit cannot be used to register for more than one future event.

Note, deferrals are allowed for live, in-person race events up to 14 days before. Details to be updated in spring 2021. Deferrals are NOT allowed for new registrations to virtual events.


During this time of uncertainty, HMF has instituted a temporary refund policy to provide participants a safety net for their half marathon and marathon events while race plans are further developed. The HMF staff will be prepared for many event iterations so please check back for regular updates. Register early to ensure your spot as 50% capacity is set for all race categories. 100% of entry fee is refundable for all entries through February 28th. Details below.

  • Entrants registered by February 28 for any open 2021 Eversource Hartford Marathon race event (Marathon, Half Marathon, 5K) are eligible for a 100% refund of registration (less processing fees), if requested by June 15, 2021.
  • Entrants registered between March 1 and May 31 for any open 2021 Eversource Hartford Marathon event (Marathon, Half Marathon, 5K) are eligible for a 75% refund of registration (less processing fees), if requested by June 15, 2021.
  • Refundable registrations will NOT be available after May 31, 2021. There are NO REFUNDS for registrations completed starting June 1, 2021 – standard Deferral and Transfer policies will then apply.
  • Refund is issued in the form of payment received. Deferral credits will be refunded with a NEW deferral code.
  • Once a refund is processed, an entrant is no longer a participant of the event.
  • Entrants may request a refund for any reason until June 15, 2021.

Instructions to request a REFUND of an Entry:

  1. Please email with the following:
    • Name of registrant
    • Email account used for registration
    • Registrant date of birth
    • Name of event with distance
  2. Participants are not removed from the event until confirmation email is provided by Haku.
  3. Refunds may take up to 15 business days to process.

Virtual Events

HMF virtual events give participants the flexibility to participate when and where it is convenient. As such, there are no refunds and no deferments for virtual events.


If registered for an event that has multiple distances, registrants may switch to a different distance in that event provided that the distance requested has not sold out. To request a race distance change during the temporary refund period (until May 31, 2021):

  • If upgrading to a longer distance (i.e. from 5K to Half Marathon) registrants will pay the difference in entry fees for the upgrade.
  • Entry fee refunds will be processed for switching to a shorter distance (i.e. from Half Marathon to 5K) ONLY during the temporary refund period until May 31 and race distance changes charges will be waived during that time.

Instructions for Race Distance Change:

  • Please access “Participant Account” in Haku to initiate a Race Distance Change entry. There is also a link to your “Participant Account” in race registration confirmation emails.
  • Click the Race Change button and follow the prompts.
  • Participants are not transferred until confirmation email is provided by Haku.


For questions about accessing your Haku Participant Account, please email, call (844) 299-2087, or start an online chat once you are logged in.

For questions about registration policies, please email