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First day of the Moses Lake Demo Derby

CALEB PEREZ | Hagadone News Network | UPDATED 6 months, 3 weeks AGO
by CALEB PEREZ
| August 13, 2025 2:37 PM

MOSES LAKE — The first night of Miner Services’ Demolition Derby kicked off Tuesday with a variety of racing and knockout events, concluding with a last man standing demo derby with Seth Dompier coming out on top. 

“It’s just a great time,” said Dompier. “It’s a lot of fun coming out here with your friends and a lot of good people (and being) in front of the fans and just having a great time wrecking some cars.” 

He said his strategy going into the match was to keep his car moving and last long enough to win. Dompier was able to secure multiple knockouts during the event and was able to take the victory after the other remaining car, driven by Michael Koon, flipped Dompier’s car, ending the derby with a red flag.  

Dompier has been participating in the Demo Derby for over 20 years and says he has always loved working with vehicles. His favorite part of doing the demo derby every year is just getting time to have fun with his friends, building and then destroying each other’s cars. 

“For anyone that’s never done it, I encourage you to do it,” he said. “This class is really easy to get into, and it’s a great time.” 

The night kicked off with dirt bike events, having both a barrel race and a traditional five-lap race to finish. Jimmy Lamastus from Post Falls, Idaho, took first in the barrel race with a time of 17.4 and Dan Stanley from Moses Lake took first in the five-lap race. 

Lamastus was unfortunately injured during the five-lap race and had to be taken off the scene by the Grant County Fire District 5 medical staff on site. The Demo Derby organizer, Aaron Schrodt said that the biker had broken his leg with no further updates. 

“Obviously, you never want someone to get injured and see everybody get home safe,” said Schrodt. 

Overall, Schrodt said that he felt the first night of the demo derby didn’t exactly go as he had hoped for night one, but is looking forward to coming back out for night two and making improvements to the derby. He also gave his thanks to Jeff Cobb for stepping in and organizing the dirt bike event this year which resulted in the bikers receiving more time to ride. 

“As long as people like the show, I guess that’s what really matters,” he said. 

Night two of the Demo Derby will feature a charity race with lawnmowers, which was initially pitched by Nick Haight and Alex Alvarado, but was turned into a charity event through Brandon Douglas from Windermere Real Estate, said Schrodt. 

“A big thing for the rodeo association is to give back to the community, and that’s what we’re trying to push towards,” he said. “We figured that would be the best way to start is having a charity race and have each committee member pick a charity that they want to raise money for.” 

Schrodt said he appreciated all the volunteers and the long hours they put in for the demo derby and the work they do following the derby to get the arena ready for the rodeo.  

“Just big thanks to everyone that comes out and puts their hours in,” said Schrodt. “Definitely would not have a performance like we do without everyone.” 

Demo Derby Night One Winners 

Event, Name, Number 

Barrel Race, Jimmy Lamastus, 13 

Five-Lap Dirt Bike, Dan Stanley, 6 

Trophy Dash, Chad Palmer, 99 

Heat Race #1, Tyler Marchand, 72 

Heat Race #2, Zach Moore, 433 

Heat Race #3, Tyson Wister, 45 

Heat Race #4, Rylie Miller, 94 

Heat Race #5, Kody Eilers, 34 

Heat Race #6, Ryder Janke, 969 

Heat Race #7, Kooper Yearout,16 

Heat Race #8, Rorey Cailey, 73 

Heath Race #9, Jaedo Olson, 95 

Heat Race #10, Dakota Kok, 118 

Heat Race #11, Dylan Roylance, 18 

Powder Puff #1, Breana Daniels, 181 

Powder Puff #2, Madissyn Cobb, 7 

Powder Puff #3, Kaylee Erickson, 140 

Powder Puff #4, Liliana Roylance, 88 

Powder Puff #5, Heidi Larson, 143 

Figure 8, Tyler Marchand, 72 

Australian #1, Tanner Callahan, 313 

Australian #2 , Mark Vandeweghe/Garrett Widmer, 180/195 

Australian #3, Rylie Miller, 94 

Australian #4, Kody Eilers, 34 

Demo Derby, Seth Dompier, 87 

    Seth Dompier, car 87, slams into car number nine during the demolition derby Tuesday night. The event ended with Dompier and Michael Koon as the final two drivers and Dompier come out with the victory.
 
 
    During the dirt bike barrel race event, Jimmy Lamastus came out on top with a final time of 17.4. Lamastus’ leg was injured during the five-lap dirt bike race and was transported out of the arena by Grant County Fire District 5 medical staff.
 
 
    Car 29 collides with car 42 during heat race #7 Tuesday night. Heat Race #7 was won by Kooper Yearout in car 16 with car 42, driven by Juan Montemayor taking second.
 
 


    Jaedo Olson in car 95, inspired by Lightning McQueen, drifts around a turn during Heat Race #9. Olson went on to win the race.
 
 
    Car 32 gets flipped by number 111 during heat race #10, causing the race to be halted for a red flag. The driver of car 32 was helped out of the vehicle by nearby staff and walked away from his vehicle and out of the arena on his own.
 
 
    Madissyn Cobb, 7, and Aiden Brunet, 444, both make the final turn of the Powder Puff #2 race with Cobb taking first, Brunet taking first, and Dannielle Hayter, 117, taking third.
 
 
    Liliana Roylance speeds by Brandon Douglas to earn first in the Powder Puff #4 race. Liliana’s brother Dylan also competed in the demo derby earning second in the Trophy Dash and first in Heat Race #11.
 
 
    Sid White, 83, maintains his lead during the Figure 8 race while Tyler Marchand, 72, flips Kody Eilers, 34, backwards. Marchand later gained the lead to earn first, while Eilers came back to earn second and White earnin third.
 
 


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