GREAT BUCKEYE CHALLENGE TRIATHLON, DUATHLON & AQUABIKE
July 19, 2026
– The Great Buckeye Challenge Triathlon, Duathlon & Aquabike takes place at the beautiful Buck Creek State Park in Springfield, Ohio. Triathletes will be treated to swim courses in the pristine Buck Creek Reservoir. Duathletes will start off with a fast out and back run within the park. The bike courses are described as rolling on mostly winding country roads surrounding the park. The final run is an out and back run on a paved trail that features a long section along the Buck Creek dam.
Join us the 3rd weekend in July for a great race and venue ideal for beginner athletes to the experienced looking for a mid-summer challenge.
SHIRT OR NO SHIRT, EITHER WAY, YOU WIN!
Everything costs too much these days, and we want to help! All entry fees for 2026 HFP’s Ohio multisport race series have been reduced by the cost of the race shirt to allow you to forgo the additional cost. And if you want to memorialize your soon-to-be PR, you have the option to purchase a race t-shirt when you register. Sorry, you still have to wear your race bib.
UPCOMING RACES:
RACE PACKET PICK-UP. See Packet pick-up tab. There is NO RACE DAY REGISTRATION — packet pickup ONLY
AWARDS
All finishers will receive a handsome finisher amenity.
- Top 3 Male and Female OVERALL FINISHERS in the Mini, Sprint & Olympic triathlons and duathlons races will receive a commemorative award. The TOP NON-BINARY Finisher in the Mini, Sprint & Olympic triathlons will be awarded.
- Top 3 Male and Female OVERALL Finishers in the Collegiate (Sprint & Olympic triathlons) will receive a commemorative award (See Note 1).
- Top 3 Male and Female OVERALL Finishers in the High School Division – Triathlon & Duathlon (Mini & Sprint triathlons) will receive a commemorative award (See Note 1).
- TOP OVERALL Division Male and Female FINISHER (1st Place) in each AGE GROUP, CLYDESDALE, ATHENA & PARATRIATHLON** in the Mini, Sprint and Olympic triathlons will receive an award commemorating their finish.
- Top OVERALL Relay team in each distance will receive a commemorative award.
- Top OVERALL Male and Female Finisher in the Aquabike.
** HFP Racing supports the USA Paratriathlon Classifications. If you have any questions or require any special assistance, please contact us at customerservice@hfpracing.com.
Note 1: Athletes must register and select to participate in special Collegiate and High School divisions and not in the “standard” age group categories for each distance. If register in the standard age group categories you will not be scored in the Collegiate and High School Divisions.
Race Distances
- Mini Triathlon: 250y Swim – 6.2 mi Bike – 2mi Run
- Mini Duathlon: 2 mi Run – 6.2 mi Bike – 2mi Run
- Sprint Triathlon: 750m Swim – 22k Bike – 5k Run
- Sprint Duathlon: 5K Run – 22 Bike – 5k Run
- Olympic Triathlon: 1500m Swim – 40k Bike – 10k Run
- Olympic Duathlon: 5k Run – 40k Bike – 10k Run
- Aquabike Distances are identical to the selected triathlon distance for swim and bike (Ex/Sprint Aquabike 750m swim+22K bike)
Relays
For those who prefer to race one element of the triathlon or duathlon we offer a relay division for our sprint and Olympic distance triathlons and duathlons. Relay teams consist of three (3) members (1 swimmer, 1 biker, 1 runner), each member will complete one segment of the race (2 members for duathlon teams). Each team member will exchange their timing chip bracelet at their assigned bike rack. There are NO age groups in this division.
About the State of Ohio Multisport Series
Welcome to Ohio’s premier multisport series.
Throughout the summer, the series visits multiple beautiful venues across the State of Ohio – from North to South. Each venue features an exciting course and scenic view of the park. So whether you’re racing to be a series champion or giving multisport racing a try for the first time, the State of Ohio Multisport Series is for YOU! It’s ALL ABOUT FUN!
Save time and money by registering for the entire Series!
Packet Pick-up: Sunday
Time: 5:45 am – 7:15 am
Location: Buck Creek State Park – Beach (Far Parking Lots)
Pre-Race Meeting: Approximately 7:00 am
Race Site Address: 1976 Buck Creek Ln, Springfield, OH 45502 | Website | 937.322.5284
Please Note: All participants must collect his/ her own event packet. Photo ID is required in order to collect event materials. NO ID = NO EVENT. HINT if you take a photo of your ID with your phone, that will be sufficient for photo ID purposes.
Pre-Race Meeting: A brief pre-race meeting will take place on race morning at approximately 7:00 am located near the transition area. Additionally, before each swim wave, the swim starter will briefly go over the course. We are always available for questions, there will not be time for extensive Q&A before the race so we encourage you to review all race information on the website.
Please see Terms & Conditions before registering.
| Entry Fees Do not include a race shirt | Lower entry fees! | ||||
|---|---|---|---|---|---|
| Race | Thru 12/31/25 | 1/01/26 to 3/31/26 | 4/01/26 to 4/30/26 | 5/01/26 - 6/30/26 | 7/01/26 - Race Week |
| Mini Tri/Du/Aquabike | $60 | $70 | $80 | $90 | $100 |
| Sprint Tri/Du/Aquabike | $75 | $85 | $95 | $110 | $125 |
| Olympic Tri/Du/Aquabike | $90 | $100 | $110 | $125 | $135 |
| Sprint Tri/Du Relay | $110 | $120 | $135 | $150 | $180 |
| Olympic Tri/Du Relay | $140 | $150 | $160 | $180 | $220 |
* Prices above reflect cost for USAT Annual Members and all participants MUST have a valid USAT license (annual or one-day).
If you are not a USAT member, adults may purchase a one-day membership or an annual membership during the registration process. Youth (17 & under) may purchase an annual membership as well.
FAMILY PLAN SPECIAL ENTRY!
If You register for a Sprint or Olympic distance race, your 13-18 year-old can participate for no entry fee except applicable USAT licenses in the Mini distance. You must register your youth in the High School Division. There is no retroactive application of discount. After you register, contact customerservice@hfpracing.com and provide your event registered and distance and we will send you a code to use to register your youth athlete.
REGISTRATION NOTES
- Registration fees are non-refundable and non-transferable.
- Fees listed above do not include the online TriRegistration processing fee.
- There is NO RACE DAY REGISTRATION.
- USA Triathlon Rule 3.2a. All age group athletes must participate and compete in the age group division corresponding to the athlete’s age on December 31 of the year of the event.
- If using a discount or sale code, only one code can be used per transaction.
RACE PACKETS
Official Race T-shirt (if registered at least 20 days prior to event date), Goodie Bag, Post Race Food & Beverages, and ALL finishers will receive a handsome Finishers Medal (including all relay team members).
Caesar Creek Weekend Schedule
| Sunday |
|---|
| 5:30am – 7:15am – Race Packet Pickup |
| 7:15am - Event Formation Begins |
| 7:15am - Transition Closes |
| 7:30am - Event Start |
Caesar Creek Start Times
| Sunday |
|---|
| 5:30am – 7:15am – Transition area open |
| 7:30am – Olympic Triathlon Waves |
| 7:55 am – All Duathlon Start (mini, sprint, Olympic) |
| 7:55am – Sprint Triathlon Waves |
| 8:15am – Mini Triathlon Waves |
USA Triathlon Sanctioning
- All HFP Racing multisport events are USA Triathlon sanctioned.
- USAT’s Most Commonly Violated Rules: If you are new to the sport or are wondering why you got a penalty at your last race,
read USAT’s most commonly violated rules. After each event in our series that has an USAT Official present we will post the Official USAT Referee’s Report on the Results Page for that event. - Need to print a USAT membership card? Click HERE.
USAT Age-Up Policy
How the “Aging Up” situation will be handled for those people changing age groups during the course of the year:
HFP Racing’s series scoring coincides with the USAT “aging up” policy. Participants will compete in whichever age group they would be in as of the 31st of December in the year of the race. In other words, everyone’s age group for the current season will be determined by their age on December 31st of the year they are racing.
Example: Jane Smith is 34 during the entire racing season, but turns 35 on Dec. 15th of that year. Jane will then “age-up” and compete in the 35-39 age group for the entire season for all events.
USAT Wetsuit Rules
All HFP Racing Series events will follow the wetsuit guidelines set forth by USA Triathlon. Those guidelines state:
- USAT rules state that competitors may wear wetsuits if the water temperature is 78 degrees or lower.
- USAT rules also state that if the water temperature is between 78.1 – 83.9 degrees, competitors may wear wetsuits but will not be eligible for awards. HFP Racing Series will have a separate category for those who choose to wear a wetsuit in this temperature range. Those athletes who choose to wear a wetsuit will not be reflected in the overall results.
- If the water temperature is 84 degrees or above, participants may NOT wear wetsuits.
Expected water temperatures will be posted via our Twitter feed page 12-24 hrs before each event. Average water temperature for Caesar Creek reservoir in July has been 77 degrees.
Race Information
- Is this your first race? Welcome to the sport and the HFP Racing and Greenswell Events family!
- All athletes receive a great race, a super comfy race shirt, finisher’s medal, post race food/drink, high-fives and sore muscles!
- Race categories available for this race are Age Group, Aquabike (swim-bike-done!), Clydesdale, Athena and Relay Teams.
- All HFP Racing races are USA Triathlon sanctioned events. You’ll be included in their National Ranking as well as support the US Olympic Team.
- All HFP Racing race registrations are non-refundable. Race registration insurance is available during the registration process.
- All registered athletes will receive an email on the Wednesday or Thursday before the race with all the information pertaining to their entry to include any last minute details to make your race weekend go smoothly!
- Spectators – We love when family and friends cheer you on! You’ll watch your athlete start & finish the Swim/Bike/Run and hug them at the finish line!
Parking Information
Athlete and spectator parking is located at the main beach parking lots. However, once the event begins no vehicles will be permitted to leave the parking area until the last bike re-enters the park or law enforcement allows vehicles to exit.
If you or family members must leave before the last bike re-enters the park, please park in the overflow lot – 1st road to your right when you enter the park. No parking in the grass.
Race Number & Sticker Kits
The race number you receive at packet pickup should be worn during the bike and run portion of the event. This will help identify who is participating in the event and also will help identify you to volunteers, team members, other athletes and emergency personnel.
You will receive a sticker kit containing 3 numbers that match your race number. Each sticker has a purpose – 1 sticker is for your bike, 1 sticker is for your bike helmet, and 3rd sticker (if available) is for your gear bag (only applicable in a two-transition event).
Body Marking
Body marking is optional and not required. For marking, mark your assigned race number on both your upper right and upper left arms. Mark your Age on the back of your left calf if you are racing in the Age Group division or if you are racing as a Clydesdale “C”, Athena “A”, Aquabike “AQ” or Relay “R” . On your right calf, mark “M” Mini, “S” Sprint, and “O” for Olympic.
Timing Chips
All events produced and timed by HFP Racing are timed with Race Results Chip Equipment. Please take a moment to familiarize yourself with the following procedures to insure successful timing of your event:
- All participants will receive their Timing Chip at packet pick up (athlete check-in). You are REQUIRED to show your paper Bib number in order to receive you timing chip. Our Volunteers are human so please double check that your timing chip number matched your bib number.
- Along with the timing chip participants will receive a Velcro ankle strap. For those participants who have their own neoprene strap they may use that for holding the timing chip.
- Relay Teams will exchange their timing chip at their bike rack located in the transition area (swimmer to biker and biker to runner).
- It is REQUIRED that all participants wear the timing chip on their LEFT ankle.
How to wear the timing chip with the provided neoprene Velcro strap:
- Thread the loose strap through the timing chip and securely fasten the Velcro
- The chip should be in a small “pocket” on the chip strap.
- Place the strap around your LEFT ankle
- Give the chip a firm pull, it should remain securely fastened
- Double check that strap is fastened correctly and securely as loss of timing chip will results in a bill of $35
REMEMBER, YOU MUST RETURN YOUR CHIP AT THE FINISH LINE. YOU CANNOT USE THIS CHIP AT OTHER RACES.
IF YOU ARE NOT ABLE TO FINISH ANY LEG OF THE RACE YOU MUST TURN IN YOUR TIMING CHIP BEFORE CROSSING OVER ANY ADDITIONAL TIMING MATS. IN THIS EVENT TAKE YOUR TIMING CHIP TO THE TIMING CHIP COLLECTION AREA NEAR THE FINISH LINE AND INFORM THEM OF YOUR DECISION.
You will be assessed a $35 charge for your chip if not returned.
Transition Area
Triathletes may enter the transition area at the posted start time of race morning packet pick-up. All bikes must be racked 15-minutes before the start of the first swim wave. Bike racks are identified by distance and triathletes must put their bicycles and gear in their designated bicycle location.
Each bike rack can hold 4 bikes, as such each athletes space is approximately 3 feet wide and 3 feet long. Once your bike is in place your space left for use is approximately the same size as a standard bath towel.
After racking your bike, proceed to the athlete check-in area located near the transition area and obtain your race number, timing chip, etc. Please body mark yourself at least 1/2 hour before the race.
Rules:
- Bike storage will NOT be provided the night before the event.
- Glass containers are NOT allowed in the transition area.
- Only triathletes and transition workers are allowed in the transition area. Please advise your family and friends that they will need to remain outside of the transition area.
- You MUST rack your bike on race morning. First come first serve any rack that does not already have 4 bikes on it.
- Participants will NOT be allowed to mount their bikes in the transition area and will be required to dismount at the designated spot outside the transition area.
- Triathletes must show their race number to remove their bicycle and gear from the transition area after the race.
Race Flow
- Swim – When triathletes finish the swim portion of the race, they will enter the transition area and proceed to their designated bicycle rack (relay teams make their exchange at their designated rack number). Each triathletes swim time will end when they cross the timing mat located near the swim exit. NOTE: DUATHLETES – when duathletes complete their 1st run they will enter transition and proceed to their designated bicycle rack to transition to the biking leg of the race.
- Bike – Bikes may NOT be ridden in the transition area. It is important to use extreme caution when departing the transition area, it is may be very congested! All athletes must put on their helmet and snap the strap before mounting their bike. The helmet on and buckled until they dismount and rack their bike. Not following the helmet rules may result in a disqualification (DQ). Bike times will start when athletes depart the transition area through the ‘Bike Out’ chute and end when they re-enter the transition area through the ‘Bike In’ chute in the transition area. Once the bike portion is completed, athletes will return their bike to their designated spot in the transition area.
- Run – All athletes depart the transition area by exiting through the ‘Run Out’ chute. Athletes run time will begin when they depart the transition area at ‘Run Out’ and end when they cross the finish line.
Water Temperature, Swim Caps and Wetsuits
The top two questions we receive about our events is what is the water temperature and are wetsuits allowed. Since one answer usually answers the other the explanations for both are bundled together for you here.
Water Temperature
The water temperature for each open water event is taken and posted on Twitter 24 hours before the posted packet pick-up time. This temperature reading is a preliminary reading. The official water temperature will be taken on race morning about 60-90 minutes prior to race start by the Race Director or the USAT official on site.
Swim Caps
All triathlon and aquabike participants will be issued an official race swim cap that must be worn during the swim portion. Swim caps are latex. If you have a latex allergy, contact customerservice@hfpracing.com. We do have silicon caps available for individuals with latex allergies.
Wetsuits
As per USAT rules, if the water temperature is 78 degrees Fahrenheit or below then wetsuits ARE allowed. At 78.1 to 83.9 degrees Fahrenheit participants may wear a wetsuit at their own discretion; however, wearing a wetsuit in the temperature range will mean that the athletes are ineligible for awards and their results will be placed in the Wetsuit category section of the category results page. Your results will not be placed in the overall results as wearing a wetsuit is an unfair advantage. At 84 degrees Fahrenheit and above wetsuits are NOT permitted at all – this is for your own safety.
We pride ourselves on the success of our events to which none of it could be possible without the support of our amazing volunteers.
How to Become a Volunteer
It is simple. Find out more information on our volunteer page. If you have any further questions please send an email to customerservice@hfpracing.com and let us know you wish to support the event!
Volunteer as a Group
HFP Racing events are a great opportunity to get your community group, run club, tri-club, ANY group involved and volunteer together. We have many areas of the race that are perfect for groups from 5-15 people to volunteer together. Send us email at customerservice@hfpracing.com and let us know!
COURSE MAPS
MINI TRIATHLON & DUATHLON
The mini distance triathlon will start off with a 250-yard counter-clockwise swim (in waist deep water along the beach), followed by a 8mi bike out & back course and finishing with 2 miles out and back run on the bike trail. Duathletes will start off with a 2-mile run.
Mini distance – Interactive Bike Course – Click HERE
Mini distance – Interactive Run Course – Click HERE
Click an image to enlarge.
SPRINT TRIATHLON & DUATHLON
The sprint distance triathlon features a 750 meter counter-clockwise rectangle swim along the beach, while the duathletes are running a 5k on the bike trail, followed by a 13.6 Mile bike course through the countryside surrounding the park and finishing with a 5k run on the bike trail before returning for a grand finish at the park.
Sprint Distance – Interactive Bike Course – Click HERE
Sprint Distance – Interactive Run Course – Click HERE
Click an image to enlarge.
OLYMPIC TRIATHLON & DUATHLON
The Olympic distance triathlon features a 750 meter 2-lap counter clockwise rectangle swim along the beach, while the duathletes are running an out & back 5K on the bike trail, followed by a 2-lap 13.6 mile bike course through the countryside surrounding the park. Olympic athletes will finish with 2 laps on the out & back 5k run on the bike trail before their grand finish!
Olympic Distance – Interactive Bike Course – Click HERE
Olympic Distance – Interactive Run Course – Click HERE
Click an image to enlarge.
ABOUT THE VENUE
Buck Creek State Park
1976 Buck Creek Ln, Springfield, OH 45502 | Website | 937.322.5284
Buck Creek State Park lies in a fertile agricultural area, rich in Ohio’s history. The park’s recreational facilities center around the 2,120-acre lake, offering endless water-related opportunities. Visitors enjoy the many wetlands, broad meadows and wildlife at this diverse 1,896-acre park.
This spectacular venue is located at the beautiful Buck Creek State Park in Springfield, Ohio. Triathletes will swim on courses paralleling the beach, a followed by challenging bike courses in Clark County and finishing with run courses on a bike course and a gently rolling bike trail.