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 ** Due to Trail Flooding on the lower trail run course has been modified to an out-n-back course on the upper trail. Additionally, the long run distance has been changed to 3.1 miles (5K). See revised run map and transition area below. **

The Dirty Duathlon is back!  The Dirty Duathlon is a cool trail run + road bike + trail run event that place at the scenic Alum Creek Reservoir in Delaware County. 

The event format consists of multiple duathlon distances to choose:

Dirty:  1.2 mile trail run+12 mile bike+1.2 mile trail run 

Dirtier: 1.2 mile trail run+12 mile bike+3.65 mile trail run 

Dirtiest: 3.65 mile trail run+ 12 mile bike+ 3.65 mile run

Note: Bike course is a road course around the Alum Creek Reservoir. All types of bikes permitted except recumbent bikes and tandems.

IMPORTANT: We ask all participants to please bring new and unopened personal products (i.e, toothpaste, deodorant, shampoo, etc) or baby food & products (i.e, diapers) for donation to the Lutheran Social Services Delaware County Food Pantry. We will collect the items at the event and deliver to LSS on behalf of the Dirty Duathlon participants. 

Registration fees

Dirty Closed

Registration closed
  • (1.2 mi trail run + 12 mi bike + 1.2 mi trail run)

    1. $40.00
      Oct 8 – Mar 1
    2. $45.00
      Mar 1 – May 6
    3. $50.00
      May 6 – May 17

Dirtier Closed

Registration closed
  • (1.2 mi trail run + 12 mi bike + 3.4 mi trail run)

    1. $50.00
      Oct 8 – Mar 1
    2. $55.00
      Mar 1 – May 6
    3. $60.00
      May 6 – May 17

Dirtiest Closed

Registration closed
  • (3.4 mi trail run + 12 mi bike + 3.4 mi trail run)

    1. $55.00
      Oct 8 – Mar 1
    2. $60.00
      Mar 1 – May 5
    3. $65.00
      May 6 – May 17

Dirtiest - Relay Closed

Registration closed
  • 2 person relay: 3.4 mi trail run + 12 mi bike + 3.4 mi trail run

    1. $70.00
      Oct 8 – Feb 28
    2. $75.00
      Mar 1 – May 5
    3. $85.00
      May 6 – May 17

Event Divisions and Awards

Age divisions: Male & Female:

  • Under 19
  • 20-29
  • 30-39
  • 40-49
  • 50-59
  • 60-69
  • 70+

Note: Reference age-up rules for all age division participants. Your age division and event start wave is based on your age as of December 31 of that year. For example, if you are 39 on the day of the race but will be 40 by December 31st, your age divsion is 40-49. Failure to participate and start in the correct wave will cause your time to be inaccurate and impact division results. 


The top 3 overall by gender in each distance will receive a commemorative award. The top gender finisher in each division by distance will receive a commemorative award. Top relay team for each distance will receive a commemorative award.

Winners must be present. No awards will be mailed. 

Greenswell Event App

Download the Greenswell Events app from your Apple or Android Store for all your event, course, and other important details at your fingertips. Additionally, finish your duathlon and results are pushed directly to the app for you to see your splits and overall finish! Download today!


Course Maps



Event Rules

Participants must wear assigned bib number on the front of your shirt or shorts at all times Your number must be visible to checkpoint recorders at all times. The timing tag is attached to your ankle so failure to wear your assigned bib and device will result in your event not being scored. 

Bike Helmets are mandatory for the biking portion. No exceptions. If Bike Helmet and bike numbers have been assigned, they must be secured to equipment. Once the transition closes you will be required to display assigned race number to enter and exit the transition or remove any equipment.

Non-participants are not permitted in the transition area for any reason.

Transition closes promptly at stated time. No entrance into transition will be permitted after stated time.

Once the event begins, vehicles will not be permitted to leave the park until the last participant has entered the bike course and exited the park.

Mount Carmel Partnership


Refund and Transfer Policy



  1. There are no refunds if the event is cancelled, postponed, rescheduled, or latered, due to events outside our control (weather, water conditions, road construction, police directive, etc).
  2. There are no refunds for job transfers, relocation, job travel, or medical condition or injury.
  3. Any refund request will be referred to this policy. 


  1. Race entries and/or Race Bibs can be transferred to another individual up to May 15. No transfers will be permitted after May 15.
  2. The individual transferring ("Transferer") must initiate the transfer. This is performed by you (you do not need to contact the race organizer) through the registration system. There is a button located on the main event registration page that initiates the process. Follow the procedures from there. You will need to indicate the individual's email address receiving the transfer.
  3. The individual receiving the race entry or bib ("Transferee") will receive a transfer email and must then within 3 days register themselves online.
  4. The transferee be required to pay the current event entry fee less credit for transferor’s entry fee paid.
  5. Additionally, all transfers are subject to an additional administrative fee of $10, plus any applicable online registration service fees.

Note: If it is your original intent to Gift someone a registration, please use the Gift Registration feature when you initially register.


  1. You are permitted to transfer up or down in distance (example: move from The Dirtiest  to The Dirty distance) through May 15.
  2. If you wish to transfer to another distance you must initiate the transfer. Again, this is performed by (you do not need to contact the race organizer) through the registration system. There is transfer button located on main event page.
  3. Any distance transfers "up" to a longer distance will be required to pay the difference between the entry fee paid and the current entry fee for the longer distance selected.  There is no refund or credit for transfers "down" in distance.
  4. Any distance transfers are subject to an additional administrative fee of $5.00, plus any applicable online registration service fees.


  1. There are no injury deferrals for this event. You are able to Transfer your entry or transfer "down" in distance per the guidelines listed above. There are no refunds.

Inclement Weather Policy

Weather forecasts will be monitored prior to the event paying special attention to the possibility of heavy rain, thunder and lightning, high winds and extreme temperatures. If necessary, athletes will be made aware of these predictions on the Greenswell website and on our Facebook so that participants can properly prepare for severe weather during the race as well as possible course alterations. Severe weather updates will also be sent to participants via email as necessary.

The Event Director and Safety Director will monitor the weather and make a decision if any action will be taken to modify the race. Possible changes include: altering the start time for the race or in extreme situations, cancellation of the event. Please listen closely to all public address announcements at the starting line of the race.

Visible lightning will cause the race to be postponed for a minimum of 30 minutes. Additional sightings will continue to delay the race in 15 minute increments.

If heat is predicted, extra water and hydration stations will be provided to the athletes, both prior to, during and after the event. The medical team will be alerted that athletes may require additional medical attention during and after the event due to the high temperatures. If it is felt that it is unsafe for participants to start the race due to severe heat that race may be suspended or cancelled.

Race personnel reserve the right to delay, cancel, or suspend the race due to inclement weather. Participants must abandon the race if ordered to do so the race personnel, medical staff, fire or police officers.

Directions to Venue

From the Cleveland to host venue - Take Route 71 South Columbus to SR 36/37. Turn RIGHT toward Delaware. Take 36/37 toward Delaware. Take SR 36/37 about 1 mile to Africa Rd. Take Africa Rd approximately 5 miles to the Alum Creek Boat Ramp - Galena. Turn RIGHT into park.

From Toledo to host venue - Take SR 23 South to Lewis Center Rd - Turn LEFT and take Lewis Center Rd about 5 miles to Africa Rd. Turn LEFT and take Africa Rd approximately 2 miles to Alum Creek Boat Ramp - Galena. Turn Left into park.

From Columbus to host venue - Take Route 71 North to I-270 West. Take I-270 West to SR 23 North. Take SR 23 North approximately 7 miles to Lewis Center Rd. Turn RIGHT. Take Lewis Center Rd approximately 5 miles to Africa Rd. Turn LEFT. Take Africa Rd approximately 2 miles to Alum Creek Boat Ramp - Galena. Turn Left into park.

ADDRESS: Alum Creek Boat Ramp - Galena/Alum Creek Multipurpose Trail is located on Africa Rd, Galena, OH 43021

Event Schedule

  • May 18 7:00 AM EDT - Transition Opens/Check-In Begins

  • May 18 8:20 AM EDT - Transition Closes

  • May 18 8:20 AM EDT - Event Formation Begins

  • May 18 8:30 AM EDT - Duathlon START - Dirtiest

  • May 18 8:35 AM EDT - Duathlon START - Dirtier

  • May 18 8:45 AM EDT - Duathlon Start - Dirty

  • May 18 10:15 AM EDT - Award Ceremony (Approx)

  • May 18 10:30 AM EDT - Bike Course Closing

  • May 18 11:00 AM EDT - Run Course Closing

Contact Information

Event Location

Alum Creek Boat Ramp & Multipurpose Trail, Africa Road, Galena, OH, USA

Click here to view map