First Thaw Tri

Event Date: 
May 18, 2019
We are back on Shiver Lake.  Yep, the place where the Lake Country Tri started way back in 1983.  It's the first race of the year and a perfect "warm up" to the Lake Country Tri Olympic and Half Iron distances.  Ok, it isn't really frozen and it's on beautiful, clean, and super clear Silver Lake in Oconomowoc, WI.
If you're concerned about the swim, we have a division for you: the "swim what you bring" division. That's right, you can wear whatever you want:  wetsuit, life jacket, fins, mask, snorkel - we don't care!


  Super Sprint Sprint
Swim 400 m (1/4 miles) 750 m (.47 miles)
Bike 6.0 miles 16 miles
Run 1.6 miles 3.1 miles

Course info

Swim map | Super sprint bike map | Sprint bike map | Super sprint run map | Sprint run map 

Wave Assignments

The First Thaw Tri uses a time trial start.  Sprint elite athletes will leave first, followed by age group sprint athletes 2 minutes later.  Athletes will be release from the beach every few seconds.  Please stage on the beach according to your swim pace, with fast swimmers up front.  Super sprint athletes will leave after the sprint athletes have made the final turn. 

Swim what you bring division

This division is literally what it sounds like: you can swim with what ever you want (noodles, fins, mask, snorkels, gloves...).  Sorry, no boats, hydrofoils, or rafts and you're not eligible for awards.  


  Super Sprint & Sprint
Through January 10 $40
January 11 - January 31 $45
February $50
March $55
April $60
May $65
Race Day $70


Register by noon on May 8th to be guaranteed a gender specific, dry wick custom race shirt..  After that, shirts will be available while online supplies last. Any extra shirts will be distributed after the race on a first come, first served basis. 

Everything you ever wanted to know about shirts can be found right here...  The FEMALE shirts run small!

Finisher Medals

All finishers will receive a custom finisher medal.  


Overall Male & Female - plaque, flowers & free entry to the 2020 First Thaw Tri!

Age group - medals for first, second, and third male and female in 5 year age brackets.

Everyone gets a finisher medal!

Refer your friends and save money on registration!

For every three registrations, we will refund $10.00 of your registration fee.  Two ways to do it.

At registration checkout, you will be given the option to share your registration on Facebook.  If 3 people register from that post, shazam we will refund $10. 

On your registration receipt, there will be a registration link. Share that link and we will refund $10 for every 3 registrations.
You can find the registration link by logging into your Run Sign Up account and email the receipt to yourself.  The software will keep track of friends registering from your link and Facebook post.

Endurance House Foundations Run and Triathlon programs are back for 2019 and bigger than ever!  If you're new to the sport or returning after a time away, then this is the best place to start back in the action!  The Foundations programs are specifically designed around the novice and beginner athlete and jam packed with information and coaching to get you to accomplishing your goals successfully.


Friday May 17th

4:00 - 8:00 Packet Pickup
Endurance House Delafield
2736 Hillside Dr
Delafield, WI53018

Saturday May 18th
6:00-7:30 Packet Pickup on site
7:45 Transition closes
8:00 swim start
10:00 course opens


There is no on site parking and Valley Road will be 100% closed at 5:00 am.  Parking is available along the Oconomowoc Parkway and insid the Oconomowoc Corporate Center.  There is no parking along Valley Road or Dousman Road.

Parking map


We need volunteers for everything from goody bag stuffing to course marshals. If you or your group have an interest in volunteering, we would greatly appreciate the assistance.  All volunteers can run a future race at no charge.

Register to volunteer HERE.

Weather / Refund Policy: 
Refunds are not permitted for any reason.

The event will be held unless severe weather occurs. In the event of severe weather, the race director may delay or cancel the event.  If the event is canceled, there will be no refunds. Silver Circle Sports Events has a NO REFUND policy.

Insurance is available for the event through a third party.  Terms, conditions, and exclusions apply. Insurance benefits are underwritten by Jefferson Insurance Company. AGA Service Company is the licensed producer and administrator of these plans.  


Race Day Transition - Transition will open at 7:00 am and closes at 8:00. Athletes must be body marked and have their race bib before entering or exiting transition. Only athletes will be permitted in this area.  Transition reopens once the final runner has left T2.

Wetsuits and water temperature

Water Temp Wetsuits and course actions
< 55  Swim portion of the race will be cancelled and race converted to duathlon
55-60 Wetsuit mandatory & race distance reduced to 1/2 scheduled distance
61-70 Wetsuits strongly encouraged
< 78 Permitted
78-83.9 Permitted but racers may not be eligible for awards
84+  Not permitted
Cold water swimming tips:
  • Fortunately, ice off on Silver Lake is early March and the lake is relatively shallow allowing it to warm quickly.
  • Consider booties. Just make sure you pull your wetsuit over them.
  • Wear a neophrene swim cap with a chin strap under your supplied race cap.
  • Wear ear plugs.

The Lake Country Triathlon is Presented by:


This event is a Silver Circle Sports Events, LLC owned, produced, timed & managed event.  Need help with an event?  Contact us HERE.