Posted: 1/5/2026
Yesterday we were on-site in Ottertail checking ice conditions, and everything is good to go!
Racers:
Registration closes at 6 pm this coming Wednesday, so do NOT delay and get signed up before the cutoff and save money by avoiding late fees.
We need all racers to head over to https://form.jotform.com/253504...
 (1).png "$4,000 bonus payout for Ottertail 100!!")
Posted: 1/2/2026
With the Ottertail 100 season opener just days away, we are excited to announce, with local support, that there is an additional $4,000 up for grabs to the winner of the 100-mile Pro Factory Final!!
We want to thank these companies for putting up this bonus purse:
Lakes area dock and lift
Pederson Farms & Seed<...
Posted: 12/29/2025
2026 Cor PowerSports Race Series Tour program...
Posted: 12/26/2025
Registration opened this past Monday for the Ottertail 100. We want to clarify registration for Team Class and how that format will work-
Registration:
On the registration form (see screenshot below), the Team Class is listed; this fee is for the team; only one rider needs to select Team on their registration form.
...
Posted: 12/17/2025
As we prepare for the upcoming season, we are instituting a new database of racers, classes, and items needed for tech.
We have been working with tech personnel to develop these new interactive inspection forms for pre-tech and post-tech, and feedback has been positive.
Today, we sent the Racer Information...
Posted: 12/10/2025
With snow reports coming in today from Park Rapids, Manvel, & Thief River Falls, things are looking great for a snow foundation and getting us back in the ditches and woods, which is where we love to be!!
However, there are also concerns from the race hosts regarding lodging on race weekend. Many of these areas haven't had rideable snow...
Posted: 12/8/2025
This notice is being sent out to answer a question brought to us recently in regards to Factory / Stock class: Ceramic Bearings
As we shared on December 4 via social media and mass email for Stock classes which came directly from Page 20 of the ISR rulebook under Stock Snowmobile rules-
Stock class snowmobile rules:
Posted: 12/5/2025
With race season approaching and everyone preparing their sleds and gear, we share some information. Some items are to reinforce existing rules, while others are new for this season. These items are taken directly from the 2026 ISR Rulebook or the 2026 Cor PowerSports Race Series handbook. In the 2026 ISR Rulebook, ANY new rules for this s...
Posted: 10/24/2025
Last week we posted on social media for all racers to read their 2026 Cor PowerSports Handbook and 2026 International Snowmobile Racing (ISR) rulebook so they are prepared for the upcoming race season as there are a few updates.
Shortly after that post the ISR website had a server issue so racers were unable to access the new rulebook, ...
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Goodridge / Grygla I-500 Sunday race information
Goodridge / Grygla I-500 Saturday race information
Goodridge / Grygla I-500 race week!!
Turtle River Roughriders 100 recap
Goodridge / Grygla I-500 event information
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