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5K Run/Walk

Sprint Relay

Olympic Relay

Sprint Triathlon

750M swim / 20k bike / 5k run

Sprint Aquabike

750M swim / 20k bike

Olympic Triathlon

1 mile swim / 40k bike / 10k run

Olympic Aquabike

1 mile swim / 40k bike

1 mile swim / 40k bike / 10k run

750M swim / 20k bike / 5k run

Race Options

750M swim / 20k bike / 5k run

750M swim / 20k bike / 5k run


Registration includes a race t-shirt, finisher medal, live race results, race photos, awards for the top finishers and a post-race party with music, food and drinks!  Additional swag items available for purchase.

Ready for a scenic race?

Innsbrook Triathlon

SUNDAY, JUNE 11, 2023

Come and race in the most beautiful venue that we have near St. Louis! Innsbrook Resort is full of breathtaking views, lakes, and wooded acres. NEW in 2023! We are starting at Lionshead Beach on Lake Aspen! No more gravel transition :). It is a gorgeous, sandy beach start. Swim in the lake, bike on gentle rolling hills surrounding the resort, and run on part gravel, part pavement as you take in the scenery.


LOCATION: To Be Announced

TIME: To Be Announced

You CANNOT pick up someone else’s packet unless you are doing a relay. Make sure you bring your Photo ID.

There will be 5 specific items to be aware of -

  1. Wristband: There will be a wristband with your race number. These must be worn to access the transition area. If you misplace this band, you will need to secure a new one prior to entering transition.

  2. Timing Chip: You will receive your timing chip when you pick up your packet. DO NOT FORGET THIS ON RACE MORNING. You will wear the timing chip on your left ankle with the chip portion facing out. This is how you will be timed. NO CHIP = NO TIME = NO RESULTS.

  3. Bike Sticker: place this on your bike, usually the seat post is the best place or the top tube.

  4. Helmet Sticker: place this on the front of your helmet.

  5. Race Bib: You are only required to wear your bib while you are on the run. It should always be forward-facing and visible. You can affix it to you using safety pins or a bib belt.

RACE DAY & Finish Line Fun
SUNDAY, JUNE 11, 2023


Innsbrook Resort, Lionshead Beach

596 Aspen Way Drive

Wright City, MO 63390

TIME: 4:00am – 12:00pm


PARKING AND DIRECTIONS FROM MAIN ENTRANCE OFF OF HWY F: Stay straight on Aspen Lake Drive then take a right onto W. Aspen Circle Drive. Parking will be in the field just before Lionshead Beach Drive. Parking signs and directions will be in place.There will be volunteers directing athletes and volunteers to specific parking areas. Please follow their directions for parking and do not run them over :)

4:00am – Transition Opens – check in gear. Athletes only in the transition area, we will check your wrist band that you will find in your packet. You will rack your bike according to your race number. Look for your number at the end of each rack. Bikes must be racked in alternating directions, preferably by the seat.

5:00am – Wetsuit announcement – legal if water is 78 degrees or below. Not legal if it is over, and wetsuit optional if 78-82 degrees but this group will not be eligible for any awards or USAT points. 82 degrees or above – NO wetsuits allowed.

6:25-6:45am – Swim warm up or splash in if daylight allows

6:30am – Transition Closes – you will NOT be allowed back in. Athletes line up with their swim wave which is indicated by our swim cap color. Pre-race announcements.

7:00am – Wave starts begin! 5K participants will begin after all the swim starts have occurred.


Race management reserves the right to remove an athlete from the course and DNF the athlete if course officials determine there is no possibility of an athlete finishing the given discipline (swim, bike, run) before the posted cut off times based on an athlete’s location, time, and average speed up to that point.


Please carry your own nutrition. Water and electrolyte drink on the run for all athletes.


Our awesome sponsor, Big Shark Bicycles will have a mechanic in transition for last-minute needs. Big Shark will also have a SAG vehicle on the course just in case you have an issue that you cannot fix during the ride.


Food, drinks, vendors, and music at the finish line! Invite family and friends.

Listen for announcements. We will do the awards as soon as the majority have finished.

  • Top 3 Overall Male & Female Awards for the following divisions: Sprint Triathlon, Sprint Aquabike, Olympic Triathlon, Olympic Aquabike, 5K Run/Walk

  • Top 3 Age Group Male & Female Awards for the following divisions: Sprint Triathlon; Olympic Triathlon

  • Top 3 Relay Teams for the following divisions: Sprint Relay and Olympic Relay


All participants will race based on their age as of 12/31/2023.


The age group breakdown is standard 5-year age groups, 0-19, 20-24, 25-29, 30- 34….75+

USAT, or USA Triathlon, is the national governing body of the sport of Triathlon. Sanctioning an event through USAT means the race is provided insurance for its athletes, race coordinators, and volunteers. As a sanctioned triathlon, all athletes are required to either be an annual USAT member or purchase a one-day membership pass. If you are currently a USAT member, please make sure to bring your proof of membership when you pick up your packet. If you do not bring this proof, you will be
charged the one-day membership fee. If you are not an annual member, you will need to purchase a one-day membership (to insure you as a triathlete) before you are able to pick up your packet. One-day membership will be collected when you register online. A USAT Official will be at the event and will be enforcing all USAT rules. It is strongly suggested you visit the USAT website for the complete list of rules and review.



Last day to register to guarantee a race shirt is May 19, 2023.

There is NO rain date, We Go Rain or Shine. In case of inclement weather,
management reserves the right to cancel/alter/modify the race/course for safety concerns. In any case there will be No Refunds of race entry fees. Each athlete must accept any such risk of their entry fee paid. There is no complementary race entry to a future race. All monies collected are used to develop and produce the event, including all race supplies, staffing, and administration. We pledge to make every effort to produce a fair, safe, and exciting event for all. Any decision we make to go forth with the race is based on the overall event safety. We have a strict NO REFUND policy.

Relay triathlon is a WONDERFUL way to experience a triathlon if you are not ready to run the whole thing, if you are not capable of competing in a specific leg, or if you just want an opportunity to share something unique with friends or family. A triathlon relay can be done with 2 or 3 people. The team can consist of all male participants, all female or mixed. Each person does 1 or 2 legs of the race. The timing chip will have a Velcro strap on it and is handed off from one athlete to the next in transition. All athletes receive full swag and finisher medals.

Spectators, the unsung hero of the triathlon. Without family and friends there to cheer us forward, the rigors of our sport would be far more difficult. MSE Racing is dedicated to ensuring that these vital portions of our triathlon family are given the opportunity to enjoy themselves while they wait for the next opportunity to see you fly by.

MSE Racing is proud to provide the following amenities:

  • Sign making craft table for kids

  • Yard game section

  • Food trucks/food options available for purchase so that spectators can have something to eat

  • Music for additional entertainment

  • Vendor and club booths available to visit

So, bring out those cow bells and noise makers for a fun day at the race!

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