The duathlon race tradition is coming back in a virtual challenge to kick off the summer multi-sport season. Take on the 5K run, 20K bike ride, 5K run at one time, or choose to take on the challenge over the course of the weekend. Relay option also available.

Share race moments to the social wall and visit the Facebook Event page for updates and to connect with other participants. #ShamrockDU


Register for the Shamrock Duathlon Revival and choose to participate as a single or multi day challenge: take on the 5K – 20K – 5K all at once or spread it out over the course of the weekend, anytime June 19-21. Virtual race benefits:

  • Custom retro cycling cap ($25 value) will be mailed to participants
  • Downloadable custom race bib. DETAILS
  • Verified results with awards (results must be submitted through haku participant account between 12:00AM on Friday, 6/19 and 11:59 PM on Monday 6/22).  DETAILS
  • Awards for Top 3 male/female, Top all male, all female, mixed teams for single day competitors
    • Overall Male & Female individual winners in the single day duathlon will each be mailed their very own finish tape so they can commemorate their victory
  • Downloadable finisher certificate
  • Virtual race bag with discounts and deals
  • #ShamrockDU social wall, available through haku participant account
  • Portion of registration donated to Foodshare

Compete as an individual or as a relay team, $45 per person.

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


A portion of each race registration will be donated to Foodshare to support urgent local needs. Race registration fees also support sustaining the operations and staffing of the non-profit Hartford Marathon Foundation.


Single Day competitors must complete the duathlon in consecutive order all at once, i.e. run a 5K, transition to bicycle and ride a 20K, transition to 5K run.

Multi Day competitors must do each discipline in order, but can spread them out however they would like, i.e. run on Friday, bike on Saturday, run again on Sunday.

Only single day competitors will be eligible for awards, verified results submission required. Timing may be submitted for single and multi day competitors to be included in results (not a requirement to participate).

The Shamrock Duathlon is a USA Triathlon sanctioned event. In order to participate individual and relay participants are required to be a member. USAT 1-Day membership is complimentary for virtual events , USAT Annual membership is $50.


Each participant earns this custom retro cycling cap (size chart), retail value $25. The commemorative swag will be mailed after the event OR participants can pick up their swag at curbside pick-up at HMF’s office (41 Sequin Drive, Glastonbury, CT 06033).

Curbside Pick-up Dates & Times:

  • Thursday, June 18, 4:00 pm – 6:00 pm


Please adhere to social distancing recommendations and follow all public safety directives.


Missing the extra goodies from partners and vendors on race day? Check out the Virtual Race Bag for great discounts and deals from a variety of awesome HMF partners. Please consider supporting them if you are able.

Check back as more deals are added!


Now, more than ever, is a great time to show some love to local bike shops – repairs, tune-ups, new gear or even a new bike! Please check their store policies in advance of visiting.

Thanks to all of our bike shop sponsors for their support of HMF.