Wisconsin Trail Assail Series

Please check the individual race websites for race status.

Seven races over seven months with a series ending championship.  The races are held in Waukesha County and Wisconsin State Parks. All the races have 5K and 10K distances and five of the events have 1/2 marathon distances. Run/walk some or all of the races.
Series medals can be picked up at Performance Running Outfitters beginning Wednesday, November 13th. 2566 Sun Valley Dr unit e, Delafield, WI 53018. They will be there until November 28th and then will be at the Last Call December 1st. After that, they will be available at the SCSE office.

The Silver Circle Sports Events Guarantee

Not sure about a trail run?  Come out and try it.  If you are not satisfied with our trail events, we will refund the entrance fee!  No strings attached.

Kiddos Race for FREE

There will be a Kids 1K run (under 10).  All kids will get a bib just like Mom & Dad.  The race is FREE for the kiddos if Mom or Dad is registered and you can register on line at no charge.  Sorry no shirts for the kiddos.

Refer your friends and save money on registration!

For every three registrations, we will refund $15.00 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 $15. 

On your registration receipt, there will be a registration link. Share that link and we will refund $15 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.

2020 Series Pricing

During registration, choose either the 5K, 10K or Half Series.  If you register for the half, you will automatically be entered into the 10K distance if there is not a half distance.

Price Schedule With Shirt Without Shirt
November - December $145 $135
January - February $150 $140
March $155 $145
April $170 $160
Race Day    

Free Fresh Fruit Bar

Check out our free, fresh fruit, finish line aid station.  Sure beats stale bagels and green bananas.....


2020 Schedule

Run from the Tax Man Run & Walk Saturday, April 11, 2020 Lapham Peak 5K, 10K, 1/2 Marathon
Mother's Day Run & Walk Saturday, May 9, 2020 Nashotah Park 5K, 10K, 1/2 Marathon
Father's Day Run & Walk Saturday, June 20, 2020 Menomonee Park 5K, 10K
Independence Day Run & Walk Saturday, July 4, 2020 Fox River Park 5K, 10K
National Watermelon Day Run & Walk Saturday, August 8, 2020 Pike Lake State Park 5K, 10K, 1/2 Marathon
Procrastination Run Sunday, September 20, 2020 Minooka Park 5K, 10K, 1/2 Marathon
National Sweetest Day Saturday, October 17, 2020 Nashotah Park 5K, 10K, 1/2 Marathon

Please note that the distances will not be exact as it is trail running. 


Overall Male & Female will receive custom medals. Top 3 male & female finishers in 5 year age groups will receive a custom medal.  Half marathon finishers will receive a custom Wisconsin Trail Assail 1/2 marathon finishers medal.

Average Joe & Jane Awards

Because this is a series, your age on December 31, 2020 will be used throughout the series.

Series Scoring & Points

Points are assigned by place position for each age group. Points will be based on a point system (1st place 10 points, 2nd place 9 points, 3rd place 8 points through 10th place).  You must participate in 4 of the 7 races to be eligible for the series awards.  You can switch between distances (at no cost) but you must run in at least 4 races of the same distance.  

Series age group medals given to the 3 male & female finishers in 5 year age groups. A finisher's medal is given to those that register for the series.

Have you registered your team for the Wisconsin Trail Assail Team Challenge? More info about the FREE Team Challenge.


The race is chip timed by Silver Circle Sports Events, LLC.  The Wisconsin Trail Assail uses a gun start for this series keeping in line with cross country starts.  Hey that means your time starts when the gun goes off.  If you are a speedster, you should be toeing the line.


The shirts are gendar specific, dry wick and those registered the Wednesday one week prior to the race are guaranteed a custom race shirt.  After that, shirts be available while on line supplies last. Any extra shirts will be distrubuted after the race on a first come first serve basis.  The FEMALE shirts run small!  See individual website for details. Everything you ever wanted to know about shirts can be found right here.


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.

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.


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