Carter Koop Racing

08/09/2026

Mother nature tried to stop us but we're still on for tonight!

We are currently on and racing! Todd & Mark are on the track and opening it up. If anything changes we will let you know!!

See everyone tonight.

08/03/2026

Little Monday morning update before I completely forget to do this, went out last night and had what felt like a rocket for the heat race, even if it was a little loose, made a slight change for the feature which helped but not enough for how slick the track was before we went out. Still had good pace just tried a line that wasn't there a few times and dropped a few spots. We'll get some changes made and hopefully be able to do better next weekend!
Heat 5->2
Feature 2->7

08/01/2026

It's just about raceday!

𝗨𝗣𝗗𝗔𝗧𝗘𝗗 👇

Western Iowa Non-wing Sprint Cars

07/20/2026

Finally stringing a couple of good results together, last week was 10th -> 6th, this week was 8th -> 4th,
We've got the rest of this month off before coming back in August for potentially 5 races, and I'm hoping to keep these results coming and hopefully improving on them!

07/12/2026

It's finally raceday! After three long weeks it's finally time to hit the track again!

06/22/2026

6/21 Mason City Results
Heat 6->2
Feature 1->9

Had a really fun time in the heat race and had an amazing battle for the win but couldn't carry the momentum over into the feature. Even with that being said the changes being made week in and week out to this car are helping, we've finally got a good base to work with now, and instead of changing week to week we're just going to tweak things here and there and see what works and what doesn't!

📷 Buck Monson Photo

06/21/2026

IT’S RACEDAY at the Mason City Motor Speedway!!

Come on out for a great night as we celebrate the life of Joel Showalter presented by Window World of Mason City.

Looks like Ol’ Mother Nature wants to play a little game today AGAIN! At this time we’ve received NOTHING this week. Was calling for 1.15 inches earlier this week, now it’s .1 inches. Just a slight difference if you ask Mike Paulson.

Happy Father’s Day to all the dads out there!! If you’re still looking for last minute gift ideas, buy him a ticket to the races tonight. Hell buy a couple for his friends too!

Looking forward to a great night of racing action!!

06/17/2026

Big Sunday for all the classes! Hope to see the stands packed!

Boy oh Boy do we have a 𝐁𝐈𝐆 Sunday night payout for the drivers!

𝐑𝐀𝐂𝐄 𝐅𝐀𝐍𝐒 check out the bottom of this post.. You know we'll be doing a giveaway for you.

The Shane Monson Construction USRA Modifieds will once again be racing for $𝟏,𝟎𝟎𝟎 to win.

The Karl Chevrolet Premier Late Model Tour will be racing for $𝟏,𝟓𝟎𝟎 to win.

The KS Engineering Ironman Stock Cars will be racing for $𝟐,𝟐𝟎𝟎 to win AND $𝟒𝟎𝟎 to start (Christie Door Company).

The Busch Light Hobby Stocks will be racing for $𝟖𝟎𝟎 to win AND $𝟏𝟎𝟎 to start.

Courtesy of Charlie's Auto Repair the Outlaw Mini Mod Series will now be racing for $𝟓𝟎𝟎 to win.

This night will be all about the life of Joel Showalter and the Window World of Mason City. Come on out and help us celebrate a great person and family, also a huge supporter of your dirt track in Mason City.

We look forward to seeing a packed house on Sunday Night!

‼️2 𝐅𝐑𝐄𝐄 𝐆𝐑𝐀𝐍𝐃𝐒𝐓𝐀𝐍𝐃 𝐏𝐀𝐒𝐒𝐄𝐒‼️
Who would like to win 2 free grandstand passes this Sunday June 21st for the Joel Showalter Memorial presented by Window World of Mason City?

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We will announce a winner on Friday morning!!
Looking forward to another night of racing action this Sunday!!

USRA - United States Racing Association

06/16/2026

Results from Sunday
Heat 3rd->3rd
Feature 6th->9th
Changes made helped a ton! Wasnt plowing straight anymore which was an amazing change, just couldnt quite get the grip needed to pull off the bottom like the other guys, going to keep working at it and hope to find some speed in this car before we head out again Sunday for the Joel Showalter memorial at the Mason City Motor Speedway
📷 Buck Monson Photo