2018 Monster Energy AMA Supercross Championship
Las Vegas - 250SX Showdown Results
Sam Boyd Stadium
Las Vegas, NV US 
May 5, 2018
250SX Showdown Main Event Results
| Rider | Time | Interval | Best Lap | Hometown | Bike | |
|---|---|---|---|---|---|---|
| 1 |  Adam Cianciarulo | 1:01.575 | 16 Laps | Port Orange, FL  | Kawasaki KX250F | |
| 2 |  Jordon Smith | 1:01.902 | +02.931 | Belmont, NC | KTM 250 SX-F | |
| 3 |  Shane McElrath | 1:01.598 | +04.036 | Canton, NC | KTM 250 SX-F | |
| 4 |  Joey Savatgy | 1:02.090 | +11.904 | Thomasville, GA | Kawasaki KX250F | |
| 5 |  Jeremy Martin | 1:01.833 | +14.426 | Millville, MN | Honda CRF250R | |
| 6 |  Chase Sexton | 1:02.338 | +15.817 | La Moille, IL | Honda CRF250R | |
| 7 |  Zach Osborne | 1:02.491 | +22.197 | Abingdon, VA | Husqvarna FC 250 | |
| 8 |  Aaron Plessinger | 1:02.681 | +23.444 | Hamilton, OH | Yamaha YZ250F | |
| 9 |  Brandon Hartranft | 1:02.956 | +31.022 | Brick, NJ | Yamaha YZ250F | |
| 10 |  Hayden Mellross | 1:03.254 | +31.389 |  | Yamaha YZ250F | |
| 11 |  Sean Cantrell | 1:03.577 | +40.621 | Murrieta, CA | KTM 250 SX-F | |
| 12 |  Michael Mosiman | 1:03.795 | +41.358 | Sebastopol, CA | Husqvarna FC 250 | |
| 13 |  Kyle Chisholm | 1:03.020 | +41.769 | Clearwater, FL | Yamaha YZ250F | |
| 14 |  Luke Renzland | 1:03.799 | +43.701 | Hewitt, NJ | Yamaha YZ250F | |
| 15 |  Justin Hill | 1:04.413 | +45.701 | Yoncalla, OR | Suzuki RM-Z250 | |
| 16 |  Josh Osby | 1:03.761 | +46.234 | Valparaiso, IN | KTM 250 SX-F | |
| 17 |  Mitchell Harrison | 1:03.425 | +48.237 | Lansing, MI | Husqvarna FC 250 | |
| 18 |  Kyle Peters | 1:03.932 | +1:07.517 | Greensboro, NC | Suzuki RM-Z250 | |
| 19 |  Anthony Rodriguez | 1:05.022 | 15 Laps | Caracacus  | KTM 250 SX-F | |
| 20 |  Martin Castelo | 1:05.452 | +08.541 |  | Yamaha YZ250F | |
| 21 |  Justin Starling | 1:04.647 | +13.754 | Deland, FL | Husqvarna FC 250 | |
| 22 |  Jacob Williamson | 1:05.607 | +53.662 | Swartz Creek, MI | Honda CRF250R |
